* [PATCH 4.14 001/210] uas: add no-uas quirk for Hiksemi usb_disk
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 002/210] usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS Greg Kroah-Hartman
` (211 subsequent siblings)
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From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alan Stern, stable, Hongling Zeng
From: Hongling Zeng <zenghongling@kylinos.cn>
commit a625a4b8806cc1e928b7dd2cca1fee709c9de56e upstream.
The UAS mode of Hiksemi is reported to fail to work on several platforms
with the following error message, then after re-connecting the device will
be offlined and not working at all.
[ 592.518442][ 2] sd 8:0:0:0: [sda] tag#17 uas_eh_abort_handler 0 uas-tag 18
inflight: CMD
[ 592.527575][ 2] sd 8:0:0:0: [sda] tag#17 CDB: Write(10) 2a 00 03 6f 88 00 00
04 00 00
[ 592.536330][ 2] sd 8:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1
inflight: CMD
[ 592.545266][ 2] sd 8:0:0:0: [sda] tag#0 CDB: Write(10) 2a 00 07 44 1a 88 00
00 08 00
These disks have a broken uas implementation, the tag field of the status
iu-s is not set properly,so we need to fall-back to usb-storage.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Link: https://lore.kernel.org/r/1663901173-21020-1-git-send-email-zenghongling@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/storage/unusual_uas.h | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -65,6 +65,13 @@ UNUSUAL_DEV(0x059f, 0x1061, 0x0000, 0x99
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_REPORT_OPCODES | US_FL_NO_SAME),
+/* Reported-by: Hongling Zeng <zenghongling@kylinos.cn> */
+UNUSUAL_DEV(0x090c, 0x2000, 0x0000, 0x9999,
+ "Hiksemi",
+ "External HDD",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_IGNORE_UAS),
+
/*
* Apricorn USB3 dongle sometimes returns "USBSUSBSUSBS" in response to SCSI
* commands in UAS mode. Observed with the 1.28 firmware; are there others?
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 002/210] usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 001/210] uas: add no-uas quirk for Hiksemi usb_disk Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 003/210] uas: ignore UAS for Thinkplus chips Greg Kroah-Hartman
` (210 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alan Stern, stable, Hongling Zeng
From: Hongling Zeng <zenghongling@kylinos.cn>
commit e00b488e813f0f1ad9f778e771b7cd2fe2877023 upstream.
The UAS mode of Hiksemi USB_HDD is reported to fail to work on several
platforms with the following error message, then after re-connecting the
device will be offlined and not working at all.
[ 592.518442][ 2] sd 8:0:0:0: [sda] tag#17 uas_eh_abort_handler 0 uas-tag 18
inflight: CMD
[ 592.527575][ 2] sd 8:0:0:0: [sda] tag#17 CDB: Write(10) 2a 00 03 6f 88 00 00
04 00 00
[ 592.536330][ 2] sd 8:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1
inflight: CMD
[ 592.545266][ 2] sd 8:0:0:0: [sda] tag#0 CDB: Write(10) 2a 00 07 44 1a 88 00
00 08 00
These disks have a broken uas implementation, the tag field of the status
iu-s is not set properly,so we need to fall-back to usb-storage.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Link: https://lore.kernel.org/r/1663901185-21067-1-git-send-email-zenghongling@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/storage/unusual_uas.h | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -152,6 +152,13 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x99
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_ATA_1X),
+/* Reported-by: Hongling Zeng <zenghongling@kylinos.cn> */
+UNUSUAL_DEV(0x0bda, 0x9210, 0x0000, 0x9999,
+ "Hiksemi",
+ "External HDD",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_IGNORE_UAS),
+
/* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */
UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999,
"Initio Corporation",
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 003/210] uas: ignore UAS for Thinkplus chips
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 001/210] uas: add no-uas quirk for Hiksemi usb_disk Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 002/210] usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 004/210] net: usb: qmi_wwan: Add new usb-id for Dell branded EM7455 Greg Kroah-Hartman
` (209 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alan Stern, stable, Hongling Zeng
From: Hongling Zeng <zenghongling@kylinos.cn>
commit 0fb9703a3eade0bb84c635705d9c795345e55053 upstream.
The UAS mode of Thinkplus(0x17ef, 0x3899) is reported to influence
performance and trigger kernel panic on several platforms with the
following error message:
[ 39.702439] xhci_hcd 0000:0c:00.3: ERROR Transfer event for disabled
endpoint or incorrect stream ring
[ 39.702442] xhci_hcd 0000:0c:00.3: @000000026c61f810 00000000 00000000
1b000000 05038000
[ 720.545894][13] Workqueue: usb_hub_wq hub_event
[ 720.550971][13] ffff88026c143c38 0000000000016300 ffff8802755bb900 ffff880
26cb80000
[ 720.559673][13] ffff88026c144000 ffff88026ca88100 0000000000000000 ffff880
26cb80000
[ 720.568374][13] ffff88026cb80000 ffff88026c143c50 ffffffff8186ae25 ffff880
26ca880f8
[ 720.577076][13] Call Trace:
[ 720.580201][13] [<ffffffff8186ae25>] schedule+0x35/0x80
[ 720.586137][13] [<ffffffff8186b0ce>] schedule_preempt_disabled+0xe/0x10
[ 720.593623][13] [<ffffffff8186cb94>] __mutex_lock_slowpath+0x164/0x1e0
[ 720.601012][13] [<ffffffff8186cc3f>] mutex_lock+0x2f/0x40
[ 720.607141][13] [<ffffffff8162b8e9>] usb_disconnect+0x59/0x290
Falling back to USB mass storage can solve this problem, so ignore UAS
function of this chip.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Link: https://lore.kernel.org/r/1663902249837086.19.seg@mailgw
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/storage/unusual_uas.h | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -201,6 +201,13 @@ UNUSUAL_DEV(0x154b, 0xf00d, 0x0000, 0x99
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_ATA_1X),
+/* Reported-by: Hongling Zeng <zenghongling@kylinos.cn> */
+UNUSUAL_DEV(0x17ef, 0x3899, 0x0000, 0x9999,
+ "Thinkplus",
+ "External HDD",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_IGNORE_UAS),
+
/* Reported-by: Hans de Goede <hdegoede@redhat.com> */
UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x9999,
"VIA",
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 004/210] net: usb: qmi_wwan: Add new usb-id for Dell branded EM7455
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (2 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 003/210] uas: ignore UAS for Thinkplus chips Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 005/210] ntfs: fix BUG_ON in ntfs_lookup_inode_by_name() Greg Kroah-Hartman
` (208 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Frank Wunderlich, Bjørn Mork,
Jakub Kicinski
From: Frank Wunderlich <frank-w@public-files.de>
commit 797666cd5af041ffb66642fff62f7389f08566a2 upstream.
Add support for Dell 5811e (EM7455) with USB-id 0x413c:0x81c2.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Cc: stable@vger.kernel.org
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20220926150740.6684-3-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/usb/qmi_wwan.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1346,6 +1346,7 @@ static const struct usb_device_id produc
{QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
{QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */
{QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */
+ {QMI_FIXED_INTF(0x413c, 0x81c2, 8)}, /* Dell Wireless 5811e */
{QMI_FIXED_INTF(0x413c, 0x81cc, 8)}, /* Dell Wireless 5816e */
{QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */
{QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e preproduction config */
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 005/210] ntfs: fix BUG_ON in ntfs_lookup_inode_by_name()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (3 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 004/210] net: usb: qmi_wwan: Add new usb-id for Dell branded EM7455 Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 006/210] mmc: moxart: fix 4-bit bus width and remove 8-bit bus width Greg Kroah-Hartman
` (207 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, ChenXiaoSong, Anton Altaparmakov,
Andrew Morton
From: ChenXiaoSong <chenxiaosong2@huawei.com>
commit 1b513f613731e2afc05550e8070d79fac80c661e upstream.
Syzkaller reported BUG_ON as follows:
------------[ cut here ]------------
kernel BUG at fs/ntfs/dir.c:86!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 3 PID: 758 Comm: a.out Not tainted 5.19.0-next-20220808 #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:ntfs_lookup_inode_by_name+0xd11/0x2d10
Code: ff e9 b9 01 00 00 e8 1e fe d6 fe 48 8b 7d 98 49 8d 5d 07 e8 91 85 29 ff 48 c7 45 98 00 00 00 00 e9 5a fb ff ff e8 ff fd d6 fe <0f> 0b e8 f8 fd d6 fe 0f 0b e8 f1 fd d6 fe 48 8b b5 50 ff ff ff 4c
RSP: 0018:ffff888079607978 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000008000 RCX: 0000000000000000
RDX: ffff88807cf10000 RSI: ffffffff82a4a081 RDI: 0000000000000003
RBP: ffff888079607a70 R08: 0000000000000001 R09: ffff88807a6d01d7
R10: ffffed100f4da03a R11: 0000000000000000 R12: ffff88800f0fb110
R13: ffff88800f0ee000 R14: ffff88800f0fb000 R15: 0000000000000001
FS: 00007f33b63c7540(0000) GS:ffff888108580000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33b635c090 CR3: 000000000f39e005 CR4: 0000000000770ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
<TASK>
load_system_files+0x1f7f/0x3620
ntfs_fill_super+0xa01/0x1be0
mount_bdev+0x36a/0x440
ntfs_mount+0x3a/0x50
legacy_get_tree+0xfb/0x210
vfs_get_tree+0x8f/0x2f0
do_new_mount+0x30a/0x760
path_mount+0x4de/0x1880
__x64_sys_mount+0x2b3/0x340
do_syscall_64+0x38/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f33b62ff9ea
Code: 48 8b 0d a9 f4 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 76 f4 0b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd0c471aa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f33b62ff9ea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd0c471be0
RBP: 00007ffd0c471c60 R08: 00007ffd0c471ae0 R09: 00007ffd0c471c24
R10: 0000000000000000 R11: 0000000000000202 R12: 000055bac5afc160
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
Fix this by adding sanity check on extended system files' directory inode
to ensure that it is directory, just like ntfs_extend_init() when mounting
ntfs3.
Link: https://lkml.kernel.org/r/20220809064730.2316892-1-chenxiaosong2@huawei.com
Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Cc: Anton Altaparmakov <anton@tuxera.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ntfs/super.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -2106,7 +2106,8 @@ get_ctx_vol_failed:
// TODO: Initialize security.
/* Get the extended system files' directory inode. */
vol->extend_ino = ntfs_iget(sb, FILE_Extend);
- if (IS_ERR(vol->extend_ino) || is_bad_inode(vol->extend_ino)) {
+ if (IS_ERR(vol->extend_ino) || is_bad_inode(vol->extend_ino) ||
+ !S_ISDIR(vol->extend_ino->i_mode)) {
if (!IS_ERR(vol->extend_ino))
iput(vol->extend_ino);
ntfs_error(sb, "Failed to load $Extend.");
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 006/210] mmc: moxart: fix 4-bit bus width and remove 8-bit bus width
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (4 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 005/210] ntfs: fix BUG_ON in ntfs_lookup_inode_by_name() Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 007/210] mm/page_alloc: fix race condition between build_all_zonelists and page allocation Greg Kroah-Hartman
` (206 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergei Antonov, Jonas Jensen, Ulf Hansson
From: Sergei Antonov <saproj@gmail.com>
commit 35ca91d1338ae158f6dcc0de5d1e86197924ffda upstream.
According to the datasheet [1] at page 377, 4-bit bus width is turned on by
bit 2 of the Bus Width Register. Thus the current bitmask is wrong: define
BUS_WIDTH_4 BIT(1)
BIT(1) does not work but BIT(2) works. This has been verified on real MOXA
hardware with FTSDC010 controller revision 1_6_0.
The corrected value of BUS_WIDTH_4 mask collides with: define BUS_WIDTH_8
BIT(2). Additionally, 8-bit bus width mode isn't supported according to the
datasheet, so let's remove the corresponding code.
[1]
https://bitbucket.org/Kasreyn/mkrom-uc7112lx/src/master/documents/FIC8120_DS_v1.2.pdf
Fixes: 1b66e94e6b99 ("mmc: moxart: Add MOXA ART SD/MMC driver")
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220907205753.1577434-1-saproj@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/host/moxart-mmc.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -111,8 +111,8 @@
#define CLK_DIV_MASK 0x7f
/* REG_BUS_WIDTH */
-#define BUS_WIDTH_8 BIT(2)
-#define BUS_WIDTH_4 BIT(1)
+#define BUS_WIDTH_4_SUPPORT BIT(3)
+#define BUS_WIDTH_4 BIT(2)
#define BUS_WIDTH_1 BIT(0)
#define MMC_VDD_360 23
@@ -527,9 +527,6 @@ static void moxart_set_ios(struct mmc_ho
case MMC_BUS_WIDTH_4:
writel(BUS_WIDTH_4, host->base + REG_BUS_WIDTH);
break;
- case MMC_BUS_WIDTH_8:
- writel(BUS_WIDTH_8, host->base + REG_BUS_WIDTH);
- break;
default:
writel(BUS_WIDTH_1, host->base + REG_BUS_WIDTH);
break;
@@ -646,16 +643,8 @@ static int moxart_probe(struct platform_
dmaengine_slave_config(host->dma_chan_rx, &cfg);
}
- switch ((readl(host->base + REG_BUS_WIDTH) >> 3) & 3) {
- case 1:
+ if (readl(host->base + REG_BUS_WIDTH) & BUS_WIDTH_4_SUPPORT)
mmc->caps |= MMC_CAP_4_BIT_DATA;
- break;
- case 2:
- mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
- break;
- default:
- break;
- }
writel(0, host->base + REG_INTERRUPT_MASK);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 007/210] mm/page_alloc: fix race condition between build_all_zonelists and page allocation
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (5 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 006/210] mmc: moxart: fix 4-bit bus width and remove 8-bit bus width Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 008/210] mm: prevent page_frag_alloc() from corrupting the memory Greg Kroah-Hartman
` (205 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mel Gorman, Patrick Daly,
Michal Hocko, David Hildenbrand, Andrew Morton
From: Mel Gorman <mgorman@techsingularity.net>
commit 3d36424b3b5850bd92f3e89b953a430d7cfc88ef upstream.
Patrick Daly reported the following problem;
NODE_DATA(nid)->node_zonelists[ZONELIST_FALLBACK] - before offline operation
[0] - ZONE_MOVABLE
[1] - ZONE_NORMAL
[2] - NULL
For a GFP_KERNEL allocation, alloc_pages_slowpath() will save the
offset of ZONE_NORMAL in ac->preferred_zoneref. If a concurrent
memory_offline operation removes the last page from ZONE_MOVABLE,
build_all_zonelists() & build_zonerefs_node() will update
node_zonelists as shown below. Only populated zones are added.
NODE_DATA(nid)->node_zonelists[ZONELIST_FALLBACK] - after offline operation
[0] - ZONE_NORMAL
[1] - NULL
[2] - NULL
The race is simple -- page allocation could be in progress when a memory
hot-remove operation triggers a zonelist rebuild that removes zones. The
allocation request will still have a valid ac->preferred_zoneref that is
now pointing to NULL and triggers an OOM kill.
This problem probably always existed but may be slightly easier to trigger
due to 6aa303defb74 ("mm, vmscan: only allocate and reclaim from zones
with pages managed by the buddy allocator") which distinguishes between
zones that are completely unpopulated versus zones that have valid pages
not managed by the buddy allocator (e.g. reserved, memblock, ballooning
etc). Memory hotplug had multiple stages with timing considerations
around managed/present page updates, the zonelist rebuild and the zone
span updates. As David Hildenbrand puts it
memory offlining adjusts managed+present pages of the zone
essentially in one go. If after the adjustments, the zone is no
longer populated (present==0), we rebuild the zone lists.
Once that's done, we try shrinking the zone (start+spanned
pages) -- which results in zone_start_pfn == 0 if there are no
more pages. That happens *after* rebuilding the zonelists via
remove_pfn_range_from_zone().
The only requirement to fix the race is that a page allocation request
identifies when a zonelist rebuild has happened since the allocation
request started and no page has yet been allocated. Use a seqlock_t to
track zonelist updates with a lockless read-side of the zonelist and
protecting the rebuild and update of the counter with a spinlock.
[akpm@linux-foundation.org: make zonelist_update_seq static]
Link: https://lkml.kernel.org/r/20220824110900.vh674ltxmzb3proq@techsingularity.net
Fixes: 6aa303defb74 ("mm, vmscan: only allocate and reclaim from zones with pages managed by the buddy allocator")
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Reported-by: Patrick Daly <quic_pdaly@quicinc.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: <stable@vger.kernel.org> [4.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
mm/page_alloc.c | 53 +++++++++++++++++++++++++++++++++++++++++++----------
1 file changed, 43 insertions(+), 10 deletions(-)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3567,6 +3567,30 @@ void fs_reclaim_release(gfp_t gfp_mask)
EXPORT_SYMBOL_GPL(fs_reclaim_release);
#endif
+/*
+ * Zonelists may change due to hotplug during allocation. Detect when zonelists
+ * have been rebuilt so allocation retries. Reader side does not lock and
+ * retries the allocation if zonelist changes. Writer side is protected by the
+ * embedded spin_lock.
+ */
+static DEFINE_SEQLOCK(zonelist_update_seq);
+
+static unsigned int zonelist_iter_begin(void)
+{
+ if (IS_ENABLED(CONFIG_MEMORY_HOTREMOVE))
+ return read_seqbegin(&zonelist_update_seq);
+
+ return 0;
+}
+
+static unsigned int check_retry_zonelist(unsigned int seq)
+{
+ if (IS_ENABLED(CONFIG_MEMORY_HOTREMOVE))
+ return read_seqretry(&zonelist_update_seq, seq);
+
+ return seq;
+}
+
/* Perform direct synchronous page reclaim */
static int
__perform_reclaim(gfp_t gfp_mask, unsigned int order,
@@ -3870,6 +3894,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, u
int compaction_retries;
int no_progress_loops;
unsigned int cpuset_mems_cookie;
+ unsigned int zonelist_iter_cookie;
int reserve_flags;
/*
@@ -3880,11 +3905,12 @@ __alloc_pages_slowpath(gfp_t gfp_mask, u
(__GFP_ATOMIC|__GFP_DIRECT_RECLAIM)))
gfp_mask &= ~__GFP_ATOMIC;
-retry_cpuset:
+restart:
compaction_retries = 0;
no_progress_loops = 0;
compact_priority = DEF_COMPACT_PRIORITY;
cpuset_mems_cookie = read_mems_allowed_begin();
+ zonelist_iter_cookie = zonelist_iter_begin();
/*
* The fast path uses conservative alloc_flags to succeed only until
@@ -4032,9 +4058,13 @@ retry:
goto retry;
- /* Deal with possible cpuset update races before we start OOM killing */
- if (check_retry_cpuset(cpuset_mems_cookie, ac))
- goto retry_cpuset;
+ /*
+ * Deal with possible cpuset update races or zonelist updates to avoid
+ * a unnecessary OOM kill.
+ */
+ if (check_retry_cpuset(cpuset_mems_cookie, ac) ||
+ check_retry_zonelist(zonelist_iter_cookie))
+ goto restart;
/* Reclaim has failed us, start killing things */
page = __alloc_pages_may_oom(gfp_mask, order, ac, &did_some_progress);
@@ -4054,9 +4084,13 @@ retry:
}
nopage:
- /* Deal with possible cpuset update races before we fail */
- if (check_retry_cpuset(cpuset_mems_cookie, ac))
- goto retry_cpuset;
+ /*
+ * Deal with possible cpuset update races or zonelist updates to avoid
+ * a unnecessary OOM kill.
+ */
+ if (check_retry_cpuset(cpuset_mems_cookie, ac) ||
+ check_retry_zonelist(zonelist_iter_cookie))
+ goto restart;
/*
* Make sure that __GFP_NOFAIL request doesn't leak out and make sure
@@ -5167,9 +5201,8 @@ static void __build_all_zonelists(void *
int nid;
int __maybe_unused cpu;
pg_data_t *self = data;
- static DEFINE_SPINLOCK(lock);
- spin_lock(&lock);
+ write_seqlock(&zonelist_update_seq);
#ifdef CONFIG_NUMA
memset(node_load, 0, sizeof(node_load));
@@ -5202,7 +5235,7 @@ static void __build_all_zonelists(void *
#endif
}
- spin_unlock(&lock);
+ write_sequnlock(&zonelist_update_seq);
}
static noinline void __init
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 008/210] mm: prevent page_frag_alloc() from corrupting the memory
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (6 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 007/210] mm/page_alloc: fix race condition between build_all_zonelists and page allocation Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 009/210] mm/migrate_device.c: flush TLB while holding PTL Greg Kroah-Hartman
` (204 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maurizio Lombardi, Alexander Duyck,
Chen Lin, Jakub Kicinski, Andrew Morton
From: Maurizio Lombardi <mlombard@redhat.com>
commit dac22531bbd4af2426c4e29e05594415ccfa365d upstream.
A number of drivers call page_frag_alloc() with a fragment's size >
PAGE_SIZE.
In low memory conditions, __page_frag_cache_refill() may fail the order
3 cache allocation and fall back to order 0; In this case, the cache
will be smaller than the fragment, causing memory corruptions.
Prevent this from happening by checking if the newly allocated cache is
large enough for the fragment; if not, the allocation will fail and
page_frag_alloc() will return NULL.
Link: https://lkml.kernel.org/r/20220715125013.247085-1-mlombard@redhat.com
Fixes: b63ae8ca096d ("mm/net: Rename and move page fragment handling from net/ to mm/")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Cc: Chen Lin <chen45464546@163.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
mm/page_alloc.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4391,6 +4391,18 @@ refill:
/* reset page count bias and offset to start of new frag */
nc->pagecnt_bias = PAGE_FRAG_CACHE_MAX_SIZE + 1;
offset = size - fragsz;
+ if (unlikely(offset < 0)) {
+ /*
+ * The caller is trying to allocate a fragment
+ * with fragsz > PAGE_SIZE but the cache isn't big
+ * enough to satisfy the request, this may
+ * happen in low memory conditions.
+ * We don't release the cache page because
+ * it could make memory pressure worse
+ * so we simply return NULL here.
+ */
+ return NULL;
+ }
}
nc->pagecnt_bias--;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 009/210] mm/migrate_device.c: flush TLB while holding PTL
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (7 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 008/210] mm: prevent page_frag_alloc() from corrupting the memory Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 010/210] soc: sunxi: sram: Actually claim SRAM regions Greg Kroah-Hartman
` (203 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alistair Popple, Nadav Amit, Huang,
Ying, David Hildenbrand, Peter Xu, Alex Sierra, Ben Skeggs,
Felix Kuehling, huang ying, Jason Gunthorpe, John Hubbard,
Karol Herbst, Logan Gunthorpe, Lyude Paul, Matthew Wilcox,
Paul Mackerras, Ralph Campbell, Andrew Morton
From: Alistair Popple <apopple@nvidia.com>
commit 60bae73708963de4a17231077285bd9ff2f41c44 upstream.
When clearing a PTE the TLB should be flushed whilst still holding the PTL
to avoid a potential race with madvise/munmap/etc. For example consider
the following sequence:
CPU0 CPU1
---- ----
migrate_vma_collect_pmd()
pte_unmap_unlock()
madvise(MADV_DONTNEED)
-> zap_pte_range()
pte_offset_map_lock()
[ PTE not present, TLB not flushed ]
pte_unmap_unlock()
[ page is still accessible via stale TLB ]
flush_tlb_range()
In this case the page may still be accessed via the stale TLB entry after
madvise returns. Fix this by flushing the TLB while holding the PTL.
Fixes: 8c3328f1f36a ("mm/migrate: migrate_vma() unmap page from vma while collecting pages")
Link: https://lkml.kernel.org/r/9f801e9d8d830408f2ca27821f606e09aa856899.1662078528.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Reported-by: Nadav Amit <nadav.amit@gmail.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: huang ying <huang.ying.caritas@gmail.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
mm/migrate.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2349,13 +2349,14 @@ next:
migrate->dst[migrate->npages] = 0;
migrate->src[migrate->npages++] = mpfn;
}
- arch_leave_lazy_mmu_mode();
- pte_unmap_unlock(ptep - 1, ptl);
/* Only flush the TLB if we actually modified any entries */
if (unmapped)
flush_tlb_range(walk->vma, start, end);
+ arch_leave_lazy_mmu_mode();
+ pte_unmap_unlock(ptep - 1, ptl);
+
return 0;
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 010/210] soc: sunxi: sram: Actually claim SRAM regions
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (8 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 009/210] mm/migrate_device.c: flush TLB while holding PTL Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 011/210] soc: sunxi: sram: Fix debugfs info for A64 SRAM C Greg Kroah-Hartman
` (202 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jernej Skrabec, Samuel Holland,
Heiko Stuebner, Sasha Levin
From: Samuel Holland <samuel@sholland.org>
[ Upstream commit fd362baad2e659ef0fb5652f023a606b248f1781 ]
sunxi_sram_claim() checks the sram_desc->claimed flag before updating
the register, with the intent that only one device can claim a region.
However, this was ineffective because the flag was never set.
Fixes: 4af34b572a85 ("drivers: soc: sunxi: Introduce SoC driver to map SRAMs")
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220815041248.53268-4-samuel@sholland.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soc/sunxi/sunxi_sram.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c
index 882be5ed7e84..97bb4d8007ff 100644
--- a/drivers/soc/sunxi/sunxi_sram.c
+++ b/drivers/soc/sunxi/sunxi_sram.c
@@ -253,6 +253,7 @@ int sunxi_sram_claim(struct device *dev)
writel(val | ((device << sram_data->offset) & mask),
base + sram_data->reg);
+ sram_desc->claimed = true;
spin_unlock(&sram_lock);
return 0;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 011/210] soc: sunxi: sram: Fix debugfs info for A64 SRAM C
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (9 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 010/210] soc: sunxi: sram: Actually claim SRAM regions Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 012/210] Revert "drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time" Greg Kroah-Hartman
` (201 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jernej Skrabec, Samuel Holland, Sasha Levin
From: Samuel Holland <samuel@sholland.org>
[ Upstream commit e3c95edb1bd8b9c2cb0caa6ae382fc8080f6a0ed ]
The labels were backward with respect to the register values. The SRAM
is mapped to the CPU when the register value is 1.
Fixes: 5e4fb6429761 ("drivers: soc: sunxi: add support for A64 and its SRAM C")
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220815041248.53268-7-samuel@sholland.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soc/sunxi/sunxi_sram.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c
index 97bb4d8007ff..3a0396395e70 100644
--- a/drivers/soc/sunxi/sunxi_sram.c
+++ b/drivers/soc/sunxi/sunxi_sram.c
@@ -71,8 +71,8 @@ static struct sunxi_sram_desc sun4i_a10_sram_d = {
static struct sunxi_sram_desc sun50i_a64_sram_c = {
.data = SUNXI_SRAM_DATA("C", 0x4, 24, 1,
- SUNXI_SRAM_MAP(0, 1, "cpu"),
- SUNXI_SRAM_MAP(1, 0, "de2")),
+ SUNXI_SRAM_MAP(1, 0, "cpu"),
+ SUNXI_SRAM_MAP(0, 1, "de2")),
};
static const struct of_device_id sunxi_sram_dt_ids[] = {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 012/210] Revert "drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time"
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (10 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 011/210] soc: sunxi: sram: Fix debugfs info for A64 SRAM C Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 013/210] Input: melfas_mip4 - fix return value check in mip4_probe() Greg Kroah-Hartman
` (200 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Brian Norris, Douglas Anderson, Sasha Levin
From: Brian Norris <briannorris@chromium.org>
[ Upstream commit cc62d98bd56d45de4531844ca23913a15136c05b ]
This reverts commit 211f276ed3d96e964d2d1106a198c7f4a4b3f4c0.
For quite some time, core DRM helpers already ensure that any relevant
connectors/CRTCs/etc. are disabled, as well as their associated
components (e.g., bridges) when suspending the system. Thus,
analogix_dp_bridge_{enable,disable}() already get called, which in turn
call drm_panel_{prepare,unprepare}(). This makes these drm_panel_*()
calls redundant.
Besides redundancy, there are a few problems with this handling:
(1) drm_panel_{prepare,unprepare}() are *not* reference-counted APIs and
are not in general designed to be handled by multiple callers --
although some panel drivers have a coarse 'prepared' flag that mitigates
some damage, at least. So at a minimum this is redundant and confusing,
but in some cases, this could be actively harmful.
(2) The error-handling is a bit non-standard. We ignored errors in
suspend(), but handled errors in resume(). And recently, people noticed
that the clk handling is unbalanced in error paths, and getting *that*
right is not actually trivial, given the current way errors are mostly
ignored.
(3) In the particular way analogix_dp_{suspend,resume}() get used (e.g.,
in rockchip_dp_*(), as a late/early callback), we don't necessarily have
a proper PM relationship between the DP/bridge device and the panel
device. So while the DP bridge gets resumed, the panel's parent device
(e.g., platform_device) may still be suspended, and so any prepare()
calls may fail.
So remove the superfluous, possibly-harmful suspend()/resume() handling
of panel state.
Fixes: 211f276ed3d9 ("drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time")
Link: https://lore.kernel.org/all/Yv2CPBD3Picg%2FgVe@google.com/
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220822180729.1.I8ac5abe3a4c1c6fd5c061686c6e883c22f69022c@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 5855f17caf16..3a462240198a 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1473,12 +1473,6 @@ int analogix_dp_suspend(struct device *dev)
struct analogix_dp_device *dp = dev_get_drvdata(dev);
clk_disable_unprepare(dp->clock);
-
- if (dp->plat_data->panel) {
- if (drm_panel_unprepare(dp->plat_data->panel))
- DRM_ERROR("failed to turnoff the panel\n");
- }
-
return 0;
}
EXPORT_SYMBOL_GPL(analogix_dp_suspend);
@@ -1494,13 +1488,6 @@ int analogix_dp_resume(struct device *dev)
return ret;
}
- if (dp->plat_data->panel) {
- if (drm_panel_prepare(dp->plat_data->panel)) {
- DRM_ERROR("failed to setup the panel\n");
- return -EBUSY;
- }
- }
-
return 0;
}
EXPORT_SYMBOL_GPL(analogix_dp_resume);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 013/210] Input: melfas_mip4 - fix return value check in mip4_probe()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (11 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 012/210] Revert "drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time" Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 014/210] usbnet: Fix memory leak in usbnet_disconnect() Greg Kroah-Hartman
` (199 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yang Yingliang, Dmitry Torokhov, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit a54dc27bd25f20ee3ea2009584b3166d25178243 ]
devm_gpiod_get_optional() may return ERR_PTR(-EPROBE_DEFER),
add a minus sign to fix it.
Fixes: 6ccb1d8f78bd ("Input: add MELFAS MIP4 Touchscreen driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220924030715.1653538-1-yangyingliang@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/input/touchscreen/melfas_mip4.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
index 05108c2fea93..633d7e1dc7d6 100644
--- a/drivers/input/touchscreen/melfas_mip4.c
+++ b/drivers/input/touchscreen/melfas_mip4.c
@@ -1469,7 +1469,7 @@ static int mip4_probe(struct i2c_client *client, const struct i2c_device_id *id)
"ce", GPIOD_OUT_LOW);
if (IS_ERR(ts->gpio_ce)) {
error = PTR_ERR(ts->gpio_ce);
- if (error != EPROBE_DEFER)
+ if (error != -EPROBE_DEFER)
dev_err(&client->dev,
"Failed to get gpio: %d\n", error);
return error;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 014/210] usbnet: Fix memory leak in usbnet_disconnect()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (12 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 013/210] Input: melfas_mip4 - fix return value check in mip4_probe() Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 015/210] nvme: add new line after variable declatation Greg Kroah-Hartman
` (198 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peilin Ye, Jakub Kicinski,
Sasha Levin, syzbot+dcd3e13cf4472f2e0ba1
From: Peilin Ye <peilin.ye@bytedance.com>
[ Upstream commit a43206156263fbaf1f2b7f96257441f331e91bb7 ]
Currently usbnet_disconnect() unanchors and frees all deferred URBs
using usb_scuttle_anchored_urbs(), which does not free urb->context,
causing a memory leak as reported by syzbot.
Use a usb_get_from_anchor() while loop instead, similar to what we did
in commit 19cfe912c37b ("Bluetooth: btusb: Fix memory leak in
play_deferred"). Also free urb->sg.
Reported-and-tested-by: syzbot+dcd3e13cf4472f2e0ba1@syzkaller.appspotmail.com
Fixes: 69ee472f2706 ("usbnet & cdc-ether: Autosuspend for online devices")
Fixes: 638c5115a794 ("USBNET: support DMA SG")
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Link: https://lore.kernel.org/r/20220923042551.2745-1-yepeilin.cs@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/usb/usbnet.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 69be3593bc0e..71b026277b30 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1598,6 +1598,7 @@ void usbnet_disconnect (struct usb_interface *intf)
struct usbnet *dev;
struct usb_device *xdev;
struct net_device *net;
+ struct urb *urb;
dev = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
@@ -1614,7 +1615,11 @@ void usbnet_disconnect (struct usb_interface *intf)
net = dev->net;
unregister_netdev (net);
- usb_scuttle_anchored_urbs(&dev->deferred);
+ while ((urb = usb_get_from_anchor(&dev->deferred))) {
+ dev_kfree_skb(urb->context);
+ kfree(urb->sg);
+ usb_free_urb(urb);
+ }
if (dev->driver_info->unbind)
dev->driver_info->unbind (dev, intf);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 015/210] nvme: add new line after variable declatation
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (13 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 014/210] usbnet: Fix memory leak in usbnet_disconnect() Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 016/210] nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices Greg Kroah-Hartman
` (197 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chaitanya Kulkarni,
Christoph Hellwig, Sasha Levin
From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[ Upstream commit f1c772d581843e3a14bbd62ef7e40b56fc307f27 ]
Add a new line in functions nvme_pr_preempt(), nvme_pr_clear(), and
nvme_pr_release() after variable declaration which follows the rest of
the code in the nvme/host/core.c.
No functional change(s) in this patch.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Stable-dep-of: c292a337d0e4 ("nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 2d95755092e3..487226531a7d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1345,18 +1345,21 @@ static int nvme_pr_preempt(struct block_device *bdev, u64 old, u64 new,
enum pr_type type, bool abort)
{
u32 cdw10 = nvme_pr_type(type) << 8 | (abort ? 2 : 1);
+
return nvme_pr_command(bdev, cdw10, old, new, nvme_cmd_resv_acquire);
}
static int nvme_pr_clear(struct block_device *bdev, u64 key)
{
u32 cdw10 = 1 | (key ? 1 << 3 : 0);
+
return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_register);
}
static int nvme_pr_release(struct block_device *bdev, u64 key, enum pr_type type)
{
u32 cdw10 = nvme_pr_type(type) << 8 | (key ? 1 << 3 : 0);
+
return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_release);
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 016/210] nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (14 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 015/210] nvme: add new line after variable declatation Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 017/210] selftests: Fix the if conditions of in test_extra_filter() Greg Kroah-Hartman
` (196 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Kelley, Christoph Hellwig,
Sasha Levin
From: Michael Kelley <mikelley@microsoft.com>
[ Upstream commit c292a337d0e45a292c301e3cd51c35aa0ae91e95 ]
The IOC_PR_CLEAR and IOC_PR_RELEASE ioctls are
non-functional on NVMe devices because the nvme_pr_clear()
and nvme_pr_release() functions set the IEKEY field incorrectly.
The IEKEY field should be set only when the key is zero (i.e,
not specified). The current code does it backwards.
Furthermore, the NVMe spec describes the persistent
reservation "clear" function as an option on the reservation
release command. The current implementation of nvme_pr_clear()
erroneously uses the reservation register command.
Fix these errors. Note that NVMe version 1.3 and later specify
that setting the IEKEY field will return an error of Invalid
Field in Command. The fix will set IEKEY when the key is zero,
which is appropriate as these ioctls consider a zero key to
be "unspecified", and the intention of the spec change is
to require a valid key.
Tested on a version 1.4 PCI NVMe device in an Azure VM.
Fixes: 1673f1f08c88 ("nvme: move block_device_operations and ns/ctrl freeing to common code")
Fixes: 1d277a637a71 ("NVMe: Add persistent reservation ops")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 487226531a7d..8e136867180a 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1351,14 +1351,14 @@ static int nvme_pr_preempt(struct block_device *bdev, u64 old, u64 new,
static int nvme_pr_clear(struct block_device *bdev, u64 key)
{
- u32 cdw10 = 1 | (key ? 1 << 3 : 0);
+ u32 cdw10 = 1 | (key ? 0 : 1 << 3);
- return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_register);
+ return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_release);
}
static int nvme_pr_release(struct block_device *bdev, u64 key, enum pr_type type)
{
- u32 cdw10 = nvme_pr_type(type) << 8 | (key ? 1 << 3 : 0);
+ u32 cdw10 = nvme_pr_type(type) << 8 | (key ? 0 : 1 << 3);
return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_release);
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 017/210] selftests: Fix the if conditions of in test_extra_filter()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (15 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 016/210] nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 018/210] clk: iproc: Minor tidy up of iproc pll data structures Greg Kroah-Hartman
` (195 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wang Yufen, Paolo Abeni, Sasha Levin
From: Wang Yufen <wangyufen@huawei.com>
[ Upstream commit bc7a319844891746135dc1f34ab9df78d636a3ac ]
The socket 2 bind the addr in use, bind should fail with EADDRINUSE. So
if bind success or errno != EADDRINUSE, testcase should be failed.
Fixes: 3ca8e4029969 ("soreuseport: BPF selection functional test")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Link: https://lore.kernel.org/r/1663916557-10730-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/net/reuseport_bpf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c
index b5277106df1f..b0cc082fbb84 100644
--- a/tools/testing/selftests/net/reuseport_bpf.c
+++ b/tools/testing/selftests/net/reuseport_bpf.c
@@ -330,7 +330,7 @@ static void test_extra_filter(const struct test_params p)
if (bind(fd1, addr, sockaddr_size()))
error(1, errno, "failed to bind recv socket 1");
- if (!bind(fd2, addr, sockaddr_size()) && errno != EADDRINUSE)
+ if (!bind(fd2, addr, sockaddr_size()) || errno != EADDRINUSE)
error(1, errno, "bind socket 2 should fail with EADDRINUSE");
free(addr);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 018/210] clk: iproc: Minor tidy up of iproc pll data structures
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (16 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 017/210] selftests: Fix the if conditions of in test_extra_filter() Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 019/210] clk: iproc: Do not rely on node name for correct PLL setup Greg Kroah-Hartman
` (194 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lori Hikichi, Stephen Boyd, Sasha Levin
From: Lori Hikichi <lhikichi@broadcom.com>
[ Upstream commit b33db49783763e1b2a63b12fbe0e91fb7147a987 ]
There were a few fields in the iproc pll data structures that were
holding information that was not true state information.
Using stack variables is sufficient and simplifies the structure.
There are not any functional changes in this commit.
Signed-off-by: Lori Hikichi <lori.hikichi@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Stable-dep-of: 1b24a132eba7 ("clk: iproc: Do not rely on node name for correct PLL setup")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/bcm/clk-iproc-pll.c | 83 ++++++++++++++-------------------
1 file changed, 36 insertions(+), 47 deletions(-)
diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c
index 375d8dd80d45..0e858dbf2505 100644
--- a/drivers/clk/bcm/clk-iproc-pll.c
+++ b/drivers/clk/bcm/clk-iproc-pll.c
@@ -69,16 +69,6 @@ enum vco_freq_range {
VCO_MAX = 4000000000U,
};
-struct iproc_pll;
-
-struct iproc_clk {
- struct clk_hw hw;
- const char *name;
- struct iproc_pll *pll;
- unsigned long rate;
- const struct iproc_clk_ctrl *ctrl;
-};
-
struct iproc_pll {
void __iomem *status_base;
void __iomem *control_base;
@@ -88,9 +78,12 @@ struct iproc_pll {
const struct iproc_pll_ctrl *ctrl;
const struct iproc_pll_vco_param *vco_param;
unsigned int num_vco_entries;
+};
- struct clk_hw_onecell_data *clk_data;
- struct iproc_clk *clks;
+struct iproc_clk {
+ struct clk_hw hw;
+ struct iproc_pll *pll;
+ const struct iproc_clk_ctrl *ctrl;
};
#define to_iproc_clk(hw) container_of(hw, struct iproc_clk, hw)
@@ -263,6 +256,7 @@ static int pll_set_rate(struct iproc_clk *clk, unsigned int rate_index,
u32 val;
enum kp_band kp_index;
unsigned long ref_freq;
+ const char *clk_name = clk_hw_get_name(&clk->hw);
/*
* reference frequency = parent frequency / PDIV
@@ -285,19 +279,19 @@ static int pll_set_rate(struct iproc_clk *clk, unsigned int rate_index,
kp_index = KP_BAND_HIGH_HIGH;
} else {
pr_err("%s: pll: %s has invalid rate: %lu\n", __func__,
- clk->name, rate);
+ clk_name, rate);
return -EINVAL;
}
kp = get_kp(ref_freq, kp_index);
if (kp < 0) {
- pr_err("%s: pll: %s has invalid kp\n", __func__, clk->name);
+ pr_err("%s: pll: %s has invalid kp\n", __func__, clk_name);
return kp;
}
ret = __pll_enable(pll);
if (ret) {
- pr_err("%s: pll: %s fails to enable\n", __func__, clk->name);
+ pr_err("%s: pll: %s fails to enable\n", __func__, clk_name);
return ret;
}
@@ -354,7 +348,7 @@ static int pll_set_rate(struct iproc_clk *clk, unsigned int rate_index,
ret = pll_wait_for_lock(pll);
if (ret < 0) {
- pr_err("%s: pll: %s failed to lock\n", __func__, clk->name);
+ pr_err("%s: pll: %s failed to lock\n", __func__, clk_name);
return ret;
}
@@ -390,16 +384,15 @@ static unsigned long iproc_pll_recalc_rate(struct clk_hw *hw,
u32 val;
u64 ndiv, ndiv_int, ndiv_frac;
unsigned int pdiv;
+ unsigned long rate;
if (parent_rate == 0)
return 0;
/* PLL needs to be locked */
val = readl(pll->status_base + ctrl->status.offset);
- if ((val & (1 << ctrl->status.shift)) == 0) {
- clk->rate = 0;
+ if ((val & (1 << ctrl->status.shift)) == 0)
return 0;
- }
/*
* PLL output frequency =
@@ -421,14 +414,14 @@ static unsigned long iproc_pll_recalc_rate(struct clk_hw *hw,
val = readl(pll->control_base + ctrl->pdiv.offset);
pdiv = (val >> ctrl->pdiv.shift) & bit_mask(ctrl->pdiv.width);
- clk->rate = (ndiv * parent_rate) >> 20;
+ rate = (ndiv * parent_rate) >> 20;
if (pdiv == 0)
- clk->rate *= 2;
+ rate *= 2;
else
- clk->rate /= pdiv;
+ rate /= pdiv;
- return clk->rate;
+ return rate;
}
static long iproc_pll_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -518,6 +511,7 @@ static unsigned long iproc_clk_recalc_rate(struct clk_hw *hw,
struct iproc_pll *pll = clk->pll;
u32 val;
unsigned int mdiv;
+ unsigned long rate;
if (parent_rate == 0)
return 0;
@@ -528,11 +522,11 @@ static unsigned long iproc_clk_recalc_rate(struct clk_hw *hw,
mdiv = 256;
if (ctrl->flags & IPROC_CLK_MCLK_DIV_BY_2)
- clk->rate = parent_rate / (mdiv * 2);
+ rate = parent_rate / (mdiv * 2);
else
- clk->rate = parent_rate / mdiv;
+ rate = parent_rate / mdiv;
- return clk->rate;
+ return rate;
}
static long iproc_clk_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -583,10 +577,6 @@ static int iproc_clk_set_rate(struct clk_hw *hw, unsigned long rate,
val |= div << ctrl->mdiv.shift;
}
iproc_pll_write(pll, pll->control_base, ctrl->mdiv.offset, val);
- if (ctrl->flags & IPROC_CLK_MCLK_DIV_BY_2)
- clk->rate = parent_rate / (div * 2);
- else
- clk->rate = parent_rate / div;
return 0;
}
@@ -629,6 +619,8 @@ void iproc_pll_clk_setup(struct device_node *node,
struct iproc_clk *iclk;
struct clk_init_data init;
const char *parent_name;
+ struct iproc_clk *iclk_array;
+ struct clk_hw_onecell_data *clk_data;
if (WARN_ON(!pll_ctrl) || WARN_ON(!clk_ctrl))
return;
@@ -637,14 +629,14 @@ void iproc_pll_clk_setup(struct device_node *node,
if (WARN_ON(!pll))
return;
- pll->clk_data = kzalloc(sizeof(*pll->clk_data->hws) * num_clks +
- sizeof(*pll->clk_data), GFP_KERNEL);
- if (WARN_ON(!pll->clk_data))
+ clk_data = kzalloc(sizeof(*clk_data->hws) * num_clks +
+ sizeof(*clk_data), GFP_KERNEL);
+ if (WARN_ON(!clk_data))
goto err_clk_data;
- pll->clk_data->num = num_clks;
+ clk_data->num = num_clks;
- pll->clks = kcalloc(num_clks, sizeof(*pll->clks), GFP_KERNEL);
- if (WARN_ON(!pll->clks))
+ iclk_array = kcalloc(num_clks, sizeof(struct iproc_clk), GFP_KERNEL);
+ if (WARN_ON(!iclk_array))
goto err_clks;
pll->control_base = of_iomap(node, 0);
@@ -674,9 +666,8 @@ void iproc_pll_clk_setup(struct device_node *node,
/* initialize and register the PLL itself */
pll->ctrl = pll_ctrl;
- iclk = &pll->clks[0];
+ iclk = &iclk_array[0];
iclk->pll = pll;
- iclk->name = node->name;
init.name = node->name;
init.ops = &iproc_pll_ops;
@@ -697,7 +688,7 @@ void iproc_pll_clk_setup(struct device_node *node,
if (WARN_ON(ret))
goto err_pll_register;
- pll->clk_data->hws[0] = &iclk->hw;
+ clk_data->hws[0] = &iclk->hw;
/* now initialize and register all leaf clocks */
for (i = 1; i < num_clks; i++) {
@@ -711,8 +702,7 @@ void iproc_pll_clk_setup(struct device_node *node,
if (WARN_ON(ret))
goto err_clk_register;
- iclk = &pll->clks[i];
- iclk->name = clk_name;
+ iclk = &iclk_array[i];
iclk->pll = pll;
iclk->ctrl = &clk_ctrl[i];
@@ -727,11 +717,10 @@ void iproc_pll_clk_setup(struct device_node *node,
if (WARN_ON(ret))
goto err_clk_register;
- pll->clk_data->hws[i] = &iclk->hw;
+ clk_data->hws[i] = &iclk->hw;
}
- ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get,
- pll->clk_data);
+ ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
if (WARN_ON(ret))
goto err_clk_register;
@@ -739,7 +728,7 @@ void iproc_pll_clk_setup(struct device_node *node,
err_clk_register:
while (--i >= 0)
- clk_hw_unregister(pll->clk_data->hws[i]);
+ clk_hw_unregister(clk_data->hws[i]);
err_pll_register:
if (pll->status_base != pll->control_base)
@@ -756,10 +745,10 @@ void iproc_pll_clk_setup(struct device_node *node,
iounmap(pll->control_base);
err_pll_iomap:
- kfree(pll->clks);
+ kfree(iclk_array);
err_clks:
- kfree(pll->clk_data);
+ kfree(clk_data);
err_clk_data:
kfree(pll);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 019/210] clk: iproc: Do not rely on node name for correct PLL setup
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (17 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 018/210] clk: iproc: Minor tidy up of iproc pll data structures Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 020/210] Makefile.extrawarn: Move -Wcast-function-type-strict to W=1 Greg Kroah-Hartman
` (193 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Florian Fainelli,
Rafał Miłecki, Stephen Boyd, Sasha Levin
From: Florian Fainelli <f.fainelli@gmail.com>
[ Upstream commit 1b24a132eba7a1c19475ba2510ec1c00af3ff914 ]
After commit 31fd9b79dc58 ("ARM: dts: BCM5301X: update CRU block
description") a warning from clk-iproc-pll.c was generated due to a
duplicate PLL name as well as the console stopped working. Upon closer
inspection it became clear that iproc_pll_clk_setup() used the Device
Tree node unit name as an unique identifier as well as a parent name to
parent all clocks under the PLL.
BCM5301X was the first platform on which that got noticed because of the
DT node unit name renaming but the same assumptions hold true for any
user of the iproc_pll_clk_setup() function.
The first 'clock-output-names' property is always guaranteed to be
unique as well as providing the actual desired PLL clock name, so we
utilize that to register the PLL and as a parent name of all children
clock.
Fixes: 5fe225c105fd ("clk: iproc: add initial common clock support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20220905161504.1526-1-f.fainelli@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/bcm/clk-iproc-pll.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c
index 0e858dbf2505..2e59314522dd 100644
--- a/drivers/clk/bcm/clk-iproc-pll.c
+++ b/drivers/clk/bcm/clk-iproc-pll.c
@@ -621,6 +621,7 @@ void iproc_pll_clk_setup(struct device_node *node,
const char *parent_name;
struct iproc_clk *iclk_array;
struct clk_hw_onecell_data *clk_data;
+ const char *clk_name;
if (WARN_ON(!pll_ctrl) || WARN_ON(!clk_ctrl))
return;
@@ -669,7 +670,12 @@ void iproc_pll_clk_setup(struct device_node *node,
iclk = &iclk_array[0];
iclk->pll = pll;
- init.name = node->name;
+ ret = of_property_read_string_index(node, "clock-output-names",
+ 0, &clk_name);
+ if (WARN_ON(ret))
+ goto err_pll_register;
+
+ init.name = clk_name;
init.ops = &iproc_pll_ops;
init.flags = 0;
parent_name = of_clk_get_parent_name(node, 0);
@@ -689,13 +695,11 @@ void iproc_pll_clk_setup(struct device_node *node,
goto err_pll_register;
clk_data->hws[0] = &iclk->hw;
+ parent_name = clk_name;
/* now initialize and register all leaf clocks */
for (i = 1; i < num_clks; i++) {
- const char *clk_name;
-
memset(&init, 0, sizeof(init));
- parent_name = node->name;
ret = of_property_read_string_index(node, "clock-output-names",
i, &clk_name);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 020/210] Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (18 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 019/210] clk: iproc: Do not rely on node name for correct PLL setup Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 021/210] i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr() Greg Kroah-Hartman
` (192 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nathan Chancellor, Sami Tolvanen, Kees Cook
From: Sami Tolvanen <samitolvanen@google.com>
commit 2120635108b35ecad9c59c8b44f6cbdf4f98214e upstream.
We enable -Wcast-function-type globally in the kernel to warn about
mismatching types in function pointer casts. Compilers currently
warn only about ABI incompability with this flag, but Clang 16 will
enable a stricter version of the check by default that checks for an
exact type match. This will be very noisy in the kernel, so disable
-Wcast-function-type-strict without W=1 until the new warnings have
been addressed.
Cc: stable@vger.kernel.org
Link: https://reviews.llvm.org/D134831
Link: https://github.com/ClangBuiltLinux/linux/issues/1724
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220930203310.4010564-1-samitolvanen@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
| 1 +
1 file changed, 1 insertion(+)
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -74,5 +74,6 @@ KBUILD_CFLAGS += $(call cc-disable-warni
KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized)
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
KBUILD_CFLAGS += $(call cc-disable-warning, unaligned-access)
+KBUILD_CFLAGS += $(call cc-disable-warning, cast-function-type-strict)
endif
endif
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 021/210] i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (19 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 020/210] Makefile.extrawarn: Move -Wcast-function-type-strict to W=1 Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:28 ` [PATCH 4.14 022/210] ARM: fix function graph tracer and unwinder dependencies Greg Kroah-Hartman
` (191 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Popov,
Uwe Kleine-König, Wolfram Sang, Harshit Mogalapalli
From: Alexander Popov <alex.popov@linux.com>
commit 23a27722b5292ef0b27403c87a109feea8296a5c upstream.
i2cdev_ioctl_rdwr() allocates i2c_msg.buf using memdup_user(), which
returns ZERO_SIZE_PTR if i2c_msg.len is zero.
Currently i2cdev_ioctl_rdwr() always dereferences the buf pointer in case
of I2C_M_RD | I2C_M_RECV_LEN transfer. That causes a kernel oops in
case of zero len.
Let's check the len against zero before dereferencing buf pointer.
This issue was triggered by syzkaller.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[wsa: use '< 1' instead of '!' for easier readability]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
[Harshit: backport to 4.14.y, use rdwr_pa[i].len instead of msgs[i].len
as the 4.14.y code uses rdwr_pa.]
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/i2c/i2c-dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -297,7 +297,7 @@ static noinline int i2cdev_ioctl_rdwr(st
*/
if (rdwr_pa[i].flags & I2C_M_RECV_LEN) {
if (!(rdwr_pa[i].flags & I2C_M_RD) ||
- rdwr_pa[i].buf[0] < 1 ||
+ rdwr_pa[i].len < 1 || rdwr_pa[i].buf[0] < 1 ||
rdwr_pa[i].len < rdwr_pa[i].buf[0] +
I2C_SMBUS_BLOCK_MAX) {
i++;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 022/210] ARM: fix function graph tracer and unwinder dependencies
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (20 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 021/210] i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr() Greg Kroah-Hartman
@ 2022-10-24 11:28 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 023/210] fs: fix UAF/GPF bug in nilfs_mdt_destroy Greg Kroah-Hartman
` (190 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:28 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Masami Hiramatsu, Russell King,
Sebastian Andrzej Siewior, Danilo Cezar Zanella
From: Russell King <rmk+kernel@armlinux.org.uk>
commit 503621628b32782a07b2318e4112bd4372aa3401 upstream.
Naresh Kamboju recently reported that the function-graph tracer crashes
on ARM. The function-graph tracer assumes that the kernel is built with
frame pointers.
We explicitly disabled the function-graph tracer when building Thumb2,
since the Thumb2 ABI doesn't have frame pointers.
We recently changed the way the unwinder method was selected, which
seems to have made it more likely that we can end up with the function-
graph tracer enabled but without the kernel built with frame pointers.
Fix up the function graph tracer dependencies so the option is not
available when we have no possibility of having frame pointers, and
adjust the dependencies on the unwinder option to hide the non-frame
pointer unwinder options if the function-graph tracer is enabled.
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: Danilo Cezar Zanella <danilo.zanella@iag.usp.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/Kconfig | 2 +-
arch/arm/Kconfig.debug | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -63,7 +63,7 @@ config ARM
select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
select HAVE_EXIT_THREAD
select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
- select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
+ select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL && !CC_IS_CLANG)
select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_GCC_PLUGINS
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -18,8 +18,8 @@ config ARM_PTDUMP
choice
prompt "Choose kernel unwinder"
- default UNWINDER_ARM if AEABI && !FUNCTION_GRAPH_TRACER
- default UNWINDER_FRAME_POINTER if !AEABI || FUNCTION_GRAPH_TRACER
+ default UNWINDER_ARM if AEABI
+ default UNWINDER_FRAME_POINTER if !AEABI
help
This determines which method will be used for unwinding kernel stack
traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
@@ -36,7 +36,7 @@ config UNWINDER_FRAME_POINTER
config UNWINDER_ARM
bool "ARM EABI stack unwinder"
- depends on AEABI
+ depends on AEABI && !FUNCTION_GRAPH_TRACER
select ARM_UNWIND
help
This option enables stack unwinding support in the kernel
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 023/210] fs: fix UAF/GPF bug in nilfs_mdt_destroy
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (21 preceding siblings ...)
2022-10-24 11:28 ` [PATCH 4.14 022/210] ARM: fix function graph tracer and unwinder dependencies Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 024/210] dmaengine: xilinx_dma: cleanup for fetching xlnx,num-fstores property Greg Kroah-Hartman
` (189 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, butt3rflyh4ck, Hao Sun, Jiacheng Xu,
Christian Brauner (Microsoft),
Dongliang Mu, Al Viro
From: Dongliang Mu <mudongliangabcd@gmail.com>
commit 2e488f13755ffbb60f307e991b27024716a33b29 upstream.
In alloc_inode, inode_init_always() could return -ENOMEM if
security_inode_alloc() fails, which causes inode->i_private
uninitialized. Then nilfs_is_metadata_file_inode() returns
true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(),
which frees the uninitialized inode->i_private
and leads to crashes(e.g., UAF/GPF).
Fix this by moving security_inode_alloc just prior to
this_cpu_inc(nr_inodes)
Link: https://lkml.kernel.org/r/CAFcO6XOcf1Jj2SeGt=jJV59wmhESeSKpfR0omdFRq+J9nD1vfQ@mail.gmail.com
Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: Jiacheng Xu <stitch@zju.edu.cn>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/inode.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -165,8 +165,6 @@ int inode_init_always(struct super_block
inode->i_wb_frn_history = 0;
#endif
- if (security_inode_alloc(inode))
- goto out;
spin_lock_init(&inode->i_lock);
lockdep_set_class(&inode->i_lock, &sb->s_type->i_lock_key);
@@ -194,11 +192,12 @@ int inode_init_always(struct super_block
inode->i_fsnotify_mask = 0;
#endif
inode->i_flctx = NULL;
+
+ if (unlikely(security_inode_alloc(inode)))
+ return -ENOMEM;
this_cpu_inc(nr_inodes);
return 0;
-out:
- return -ENOMEM;
}
EXPORT_SYMBOL(inode_init_always);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 024/210] dmaengine: xilinx_dma: cleanup for fetching xlnx,num-fstores property
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (22 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 023/210] fs: fix UAF/GPF bug in nilfs_mdt_destroy Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 025/210] dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure Greg Kroah-Hartman
` (188 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Swati Agarwal, Vinod Koul, Sasha Levin
From: Swati Agarwal <swati.agarwal@xilinx.com>
[ Upstream commit 462bce790e6a7e68620a4ce260cc38f7ed0255d5 ]
Free the allocated resources for missing xlnx,num-fstores property.
Signed-off-by: Swati Agarwal <swati.agarwal@xilinx.com>
Link: https://lore.kernel.org/r/20220817061125.4720-3-swati.agarwal@xilinx.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/dma/xilinx/xilinx_dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 3c2084766a31..9319349e69d2 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2565,7 +2565,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
if (err < 0) {
dev_err(xdev->dev,
"missing xlnx,num-fstores property\n");
- return err;
+ goto disable_clks;
}
err = of_property_read_u32(node, "xlnx,flush-fsync",
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 025/210] dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (23 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 024/210] dmaengine: xilinx_dma: cleanup for fetching xlnx,num-fstores property Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 026/210] ARM: dts: fix Moxa SDIO compatible, remove sdhci misnomer Greg Kroah-Hartman
` (187 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Swati Agarwal, Radhey Shyam Pandey,
Vinod Koul, Sasha Levin
From: Swati Agarwal <swati.agarwal@xilinx.com>
[ Upstream commit 8f2b6bc79c32f0fa60df000ae387a790ec80eae9 ]
The driver does not handle the failure case while calling
dma_set_mask_and_coherent API.
In case of failure, capture the return value of API and then report an
error.
Addresses-coverity: Unchecked return value (CHECKED_RETURN)
Signed-off-by: Swati Agarwal <swati.agarwal@xilinx.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Link: https://lore.kernel.org/r/20220817061125.4720-4-swati.agarwal@xilinx.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/dma/xilinx/xilinx_dma.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 9319349e69d2..b4d00bc461db 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2585,7 +2585,11 @@ static int xilinx_dma_probe(struct platform_device *pdev)
xdev->ext_addr = false;
/* Set the dma mask bits */
- dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width));
+ err = dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width));
+ if (err < 0) {
+ dev_err(xdev->dev, "DMA mask error %d\n", err);
+ goto disable_clks;
+ }
/* Initialize the DMA engine */
xdev->common.dev = &pdev->dev;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 026/210] ARM: dts: fix Moxa SDIO compatible, remove sdhci misnomer
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (24 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 025/210] dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 027/210] net/ieee802154: fix uninit value bug in dgram_sendmsg Greg Kroah-Hartman
` (186 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Sergei Antonov,
Jonas Jensen, Sasha Levin
From: Sergei Antonov <saproj@gmail.com>
[ Upstream commit 02181e68275d28cab3c3f755852770367f1bc229 ]
Driver moxart-mmc.c has .compatible = "moxa,moxart-mmc".
But moxart .dts/.dtsi and the documentation file moxa,moxart-dma.txt
contain compatible = "moxa,moxart-sdhci".
Change moxart .dts/.dtsi files and moxa,moxart-dma.txt to match the driver.
Replace 'sdhci' with 'mmc' in names too, since SDHCI is a different
controller from FTSDC010.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Link: https://lore.kernel.org/r/20220907175341.1477383-1-saproj@gmail.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt | 4 ++--
arch/arm/boot/dts/moxart-uc7112lx.dts | 2 +-
arch/arm/boot/dts/moxart.dtsi | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt b/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt
index 8a9f3559335b..7e14e26676ec 100644
--- a/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt
+++ b/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt
@@ -34,8 +34,8 @@ Example:
Use specific request line passing from dma
For example, MMC request line is 5
- sdhci: sdhci@98e00000 {
- compatible = "moxa,moxart-sdhci";
+ mmc: mmc@98e00000 {
+ compatible = "moxa,moxart-mmc";
reg = <0x98e00000 0x5C>;
interrupts = <5 0>;
clocks = <&clk_apb>;
diff --git a/arch/arm/boot/dts/moxart-uc7112lx.dts b/arch/arm/boot/dts/moxart-uc7112lx.dts
index 4a962a26482d..59d8775a3a93 100644
--- a/arch/arm/boot/dts/moxart-uc7112lx.dts
+++ b/arch/arm/boot/dts/moxart-uc7112lx.dts
@@ -80,7 +80,7 @@ &clk_pll {
clocks = <&ref12>;
};
-&sdhci {
+&mmc {
status = "okay";
};
diff --git a/arch/arm/boot/dts/moxart.dtsi b/arch/arm/boot/dts/moxart.dtsi
index da7b3237bfe9..804a2bc6ec82 100644
--- a/arch/arm/boot/dts/moxart.dtsi
+++ b/arch/arm/boot/dts/moxart.dtsi
@@ -93,8 +93,8 @@ watchdog: watchdog@98500000 {
clock-names = "PCLK";
};
- sdhci: sdhci@98e00000 {
- compatible = "moxa,moxart-sdhci";
+ mmc: mmc@98e00000 {
+ compatible = "moxa,moxart-mmc";
reg = <0x98e00000 0x5C>;
interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk_apb>;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 027/210] net/ieee802154: fix uninit value bug in dgram_sendmsg
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (25 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 026/210] ARM: dts: fix Moxa SDIO compatible, remove sdhci misnomer Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 028/210] um: Cleanup syscall_handler_t cast in syscalls_32.h Greg Kroah-Hartman
` (185 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Haimin Zhang, David S. Miller, Sasha Levin
From: Haimin Zhang <tcs.kernel@gmail.com>
[ Upstream commit 94160108a70c8af17fa1484a37e05181c0e094af ]
There is uninit value bug in dgram_sendmsg function in
net/ieee802154/socket.c when the length of valid data pointed by the
msg->msg_name isn't verified.
We introducing a helper function ieee802154_sockaddr_check_size to
check namelen. First we check there is addr_type in ieee802154_addr_sa.
Then, we check namelen according to addr_type.
Also fixed in raw_bind, dgram_bind, dgram_connect.
Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/ieee802154_netdev.h | 37 +++++++++++++++++++++++++++++
net/ieee802154/socket.c | 42 ++++++++++++++++++---------------
2 files changed, 60 insertions(+), 19 deletions(-)
diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h
index c4b31601cd53..fd1665baa179 100644
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -23,6 +23,22 @@
#ifndef IEEE802154_NETDEVICE_H
#define IEEE802154_NETDEVICE_H
+#define IEEE802154_REQUIRED_SIZE(struct_type, member) \
+ (offsetof(typeof(struct_type), member) + \
+ sizeof(((typeof(struct_type) *)(NULL))->member))
+
+#define IEEE802154_ADDR_OFFSET \
+ offsetof(typeof(struct sockaddr_ieee802154), addr)
+
+#define IEEE802154_MIN_NAMELEN (IEEE802154_ADDR_OFFSET + \
+ IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, addr_type))
+
+#define IEEE802154_NAMELEN_SHORT (IEEE802154_ADDR_OFFSET + \
+ IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, short_addr))
+
+#define IEEE802154_NAMELEN_LONG (IEEE802154_ADDR_OFFSET + \
+ IEEE802154_REQUIRED_SIZE(struct ieee802154_addr_sa, hwaddr))
+
#include <net/af_ieee802154.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
@@ -173,6 +189,27 @@ static inline void ieee802154_devaddr_to_raw(void *raw, __le64 addr)
memcpy(raw, &temp, IEEE802154_ADDR_LEN);
}
+static inline int
+ieee802154_sockaddr_check_size(struct sockaddr_ieee802154 *daddr, int len)
+{
+ struct ieee802154_addr_sa *sa;
+
+ sa = &daddr->addr;
+ if (len < IEEE802154_MIN_NAMELEN)
+ return -EINVAL;
+ switch (sa->addr_type) {
+ case IEEE802154_ADDR_SHORT:
+ if (len < IEEE802154_NAMELEN_SHORT)
+ return -EINVAL;
+ break;
+ case IEEE802154_ADDR_LONG:
+ if (len < IEEE802154_NAMELEN_LONG)
+ return -EINVAL;
+ break;
+ }
+ return 0;
+}
+
static inline void ieee802154_addr_from_sa(struct ieee802154_addr *a,
const struct ieee802154_addr_sa *sa)
{
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index 9d46d9462129..16bf114118c3 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -212,8 +212,9 @@ static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
int err = 0;
struct net_device *dev = NULL;
- if (len < sizeof(*uaddr))
- return -EINVAL;
+ err = ieee802154_sockaddr_check_size(uaddr, len);
+ if (err < 0)
+ return err;
uaddr = (struct sockaddr_ieee802154 *)_uaddr;
if (uaddr->family != AF_IEEE802154)
@@ -506,7 +507,8 @@ static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
ro->bound = 0;
- if (len < sizeof(*addr))
+ err = ieee802154_sockaddr_check_size(addr, len);
+ if (err < 0)
goto out;
if (addr->family != AF_IEEE802154)
@@ -577,8 +579,9 @@ static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
struct dgram_sock *ro = dgram_sk(sk);
int err = 0;
- if (len < sizeof(*addr))
- return -EINVAL;
+ err = ieee802154_sockaddr_check_size(addr, len);
+ if (err < 0)
+ return err;
if (addr->family != AF_IEEE802154)
return -EINVAL;
@@ -617,6 +620,7 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
struct ieee802154_mac_cb *cb;
struct dgram_sock *ro = dgram_sk(sk);
struct ieee802154_addr dst_addr;
+ DECLARE_SOCKADDR(struct sockaddr_ieee802154*, daddr, msg->msg_name);
int hlen, tlen;
int err;
@@ -625,10 +629,20 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
return -EOPNOTSUPP;
}
- if (!ro->connected && !msg->msg_name)
- return -EDESTADDRREQ;
- else if (ro->connected && msg->msg_name)
- return -EISCONN;
+ if (msg->msg_name) {
+ if (ro->connected)
+ return -EISCONN;
+ if (msg->msg_namelen < IEEE802154_MIN_NAMELEN)
+ return -EINVAL;
+ err = ieee802154_sockaddr_check_size(daddr, msg->msg_namelen);
+ if (err < 0)
+ return err;
+ ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
+ } else {
+ if (!ro->connected)
+ return -EDESTADDRREQ;
+ dst_addr = ro->dst_addr;
+ }
if (!ro->bound)
dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
@@ -664,16 +678,6 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
cb = mac_cb_init(skb);
cb->type = IEEE802154_FC_TYPE_DATA;
cb->ackreq = ro->want_ack;
-
- if (msg->msg_name) {
- DECLARE_SOCKADDR(struct sockaddr_ieee802154*,
- daddr, msg->msg_name);
-
- ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
- } else {
- dst_addr = ro->dst_addr;
- }
-
cb->secen = ro->secen;
cb->secen_override = ro->secen_override;
cb->seclevel = ro->seclevel;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 028/210] um: Cleanup syscall_handler_t cast in syscalls_32.h
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (26 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 027/210] net/ieee802154: fix uninit value bug in dgram_sendmsg Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 029/210] um: Cleanup compiler warning in arch/x86/um/tls_32.c Greg Kroah-Hartman
` (184 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lukas Straub, Richard Weinberger,
Sasha Levin, Randy Dunlap
From: Lukas Straub <lukasstraub2@web.de>
[ Upstream commit 61670b4d270c71219def1fbc9441debc2ac2e6e9 ]
Like in f4f03f299a56ce4d73c5431e0327b3b6cb55ebb9
"um: Cleanup syscall_handler_t definition/cast, fix warning",
remove the cast to to fix the compiler warning.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/um/shared/sysdep/syscalls_32.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/um/shared/sysdep/syscalls_32.h b/arch/x86/um/shared/sysdep/syscalls_32.h
index 68fd2cf526fd..f6e9f84397e7 100644
--- a/arch/x86/um/shared/sysdep/syscalls_32.h
+++ b/arch/x86/um/shared/sysdep/syscalls_32.h
@@ -6,10 +6,9 @@
#include <asm/unistd.h>
#include <sysdep/ptrace.h>
-typedef long syscall_handler_t(struct pt_regs);
+typedef long syscall_handler_t(struct syscall_args);
extern syscall_handler_t *sys_call_table[];
#define EXECUTE_SYSCALL(syscall, regs) \
- ((long (*)(struct syscall_args)) \
- (*sys_call_table[syscall]))(SYSCALL_ARGS(®s->regs))
+ ((*sys_call_table[syscall]))(SYSCALL_ARGS(®s->regs))
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 029/210] um: Cleanup compiler warning in arch/x86/um/tls_32.c
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (27 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 028/210] um: Cleanup syscall_handler_t cast in syscalls_32.h Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 030/210] usb: mon: make mmapped memory read only Greg Kroah-Hartman
` (183 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lukas Straub, Richard Weinberger,
Sasha Levin, Randy Dunlap
From: Lukas Straub <lukasstraub2@web.de>
[ Upstream commit d27fff3499671dc23a08efd01cdb8b3764a391c4 ]
arch.tls_array is statically allocated so checking for NULL doesn't
make sense. This causes the compiler warning below.
Remove the checks to silence these warnings.
../arch/x86/um/tls_32.c: In function 'get_free_idx':
../arch/x86/um/tls_32.c:68:13: warning: the comparison will always evaluate as 'true' for the address of 'tls_array' will never be NULL [-Waddress]
68 | if (!t->arch.tls_array)
| ^
In file included from ../arch/x86/um/asm/processor.h:10,
from ../include/linux/rcupdate.h:30,
from ../include/linux/rculist.h:11,
from ../include/linux/pid.h:5,
from ../include/linux/sched.h:14,
from ../arch/x86/um/tls_32.c:7:
../arch/x86/um/asm/processor_32.h:22:31: note: 'tls_array' declared here
22 | struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
| ^~~~~~~~~
../arch/x86/um/tls_32.c: In function 'get_tls_entry':
../arch/x86/um/tls_32.c:243:13: warning: the comparison will always evaluate as 'true' for the address of 'tls_array' will never be NULL [-Waddress]
243 | if (!t->arch.tls_array)
| ^
../arch/x86/um/asm/processor_32.h:22:31: note: 'tls_array' declared here
22 | struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
| ^~~~~~~~~
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/um/tls_32.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
index 5bd949da7a4a..b69ab2409430 100644
--- a/arch/x86/um/tls_32.c
+++ b/arch/x86/um/tls_32.c
@@ -65,9 +65,6 @@ static int get_free_idx(struct task_struct* task)
struct thread_struct *t = &task->thread;
int idx;
- if (!t->arch.tls_array)
- return GDT_ENTRY_TLS_MIN;
-
for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
if (!t->arch.tls_array[idx].present)
return idx + GDT_ENTRY_TLS_MIN;
@@ -242,9 +239,6 @@ static int get_tls_entry(struct task_struct *task, struct user_desc *info,
{
struct thread_struct *t = &task->thread;
- if (!t->arch.tls_array)
- goto clear;
-
if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
return -EINVAL;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 030/210] usb: mon: make mmapped memory read only
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (28 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 029/210] um: Cleanup compiler warning in arch/x86/um/tls_32.c Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 031/210] USB: serial: ftdi_sio: fix 300 bps rate for SIO Greg Kroah-Hartman
` (182 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dmitry Vyukov, stable,
syzbot+23f57c5ae902429285d7, Tadeusz Struk, PaX Team
From: Tadeusz Struk <tadeusz.struk@linaro.org>
commit a659daf63d16aa883be42f3f34ff84235c302198 upstream.
Syzbot found an issue in usbmon module, where the user space client can
corrupt the monitor's internal memory, causing the usbmon module to
crash the kernel with segfault, UAF, etc.
The reproducer mmaps the /dev/usbmon memory to user space, and
overwrites it with arbitrary data, which causes all kinds of issues.
Return an -EPERM error from mon_bin_mmap() if the flag VM_WRTIE is set.
Also clear VM_MAYWRITE to make it impossible to change it to writable
later.
Cc: "Dmitry Vyukov" <dvyukov@google.com>
Cc: stable <stable@kernel.org>
Fixes: 6f23ee1fefdc ("USB: add binary API to usbmon")
Suggested-by: PaX Team <pageexec@freemail.hu> # for the VM_MAYRITE portion
Link: https://syzkaller.appspot.com/bug?id=2eb1f35d6525fa4a74d75b4244971e5b1411c95a
Reported-by: syzbot+23f57c5ae902429285d7@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Link: https://lore.kernel.org/r/20220919215957.205681-1-tadeusz.struk@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/mon/mon_bin.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -1267,6 +1267,11 @@ static int mon_bin_mmap(struct file *fil
{
/* don't do anything here: "fault" will set up page table entries */
vma->vm_ops = &mon_bin_vm_ops;
+
+ if (vma->vm_flags & VM_WRITE)
+ return -EPERM;
+
+ vma->vm_flags &= ~VM_MAYWRITE;
vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = filp->private_data;
mon_bin_vma_open(vma);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 031/210] USB: serial: ftdi_sio: fix 300 bps rate for SIO
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (29 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 030/210] usb: mon: make mmapped memory read only Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 032/210] mmc: core: Replace with already defined values for readability Greg Kroah-Hartman
` (181 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Johan Hovold
From: Johan Hovold <johan@kernel.org>
commit 7bd7ad3c310cd6766f170927381eea0aa6f46c69 upstream.
The 300 bps rate of SIO devices has been mapped to 9600 bps since
2003... Let's fix the regression.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/serial/ftdi_sio.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1309,8 +1309,7 @@ static __u32 get_ftdi_divisor(struct tty
case 38400: div_value = ftdi_sio_b38400; break;
case 57600: div_value = ftdi_sio_b57600; break;
case 115200: div_value = ftdi_sio_b115200; break;
- } /* baud */
- if (div_value == 0) {
+ default:
dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n",
__func__, baud);
div_value = ftdi_sio_b9600;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 032/210] mmc: core: Replace with already defined values for readability
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (30 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 031/210] USB: serial: ftdi_sio: fix 300 bps rate for SIO Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 033/210] mmc: core: Terminate infinite loop in SD-UHS voltage switch Greg Kroah-Hartman
` (180 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, ChanWoo Lee, Linus Walleij,
Ulf Hansson, Brian Norris
From: ChanWoo Lee <cw9316.lee@samsung.com>
commit e427266460826bea21b70f9b2bb29decfb2c2620 upstream.
SD_ROCR_S18A is already defined and is used to check the rocr value, so
let's replace with already defined values for readability.
Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220706004840.24812-1-cw9316.lee@samsung.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/core/sd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -793,7 +793,7 @@ try_again:
* the CCS bit is set as well. We deliberately deviate from the spec in
* regards to this, which allows UHS-I to be supported for SDSC cards.
*/
- if (!mmc_host_is_spi(host) && rocr && (*rocr & 0x01000000)) {
+ if (!mmc_host_is_spi(host) && rocr && (*rocr & SD_ROCR_S18A)) {
err = mmc_set_uhs_voltage(host, pocr);
if (err == -EAGAIN) {
retries--;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 033/210] mmc: core: Terminate infinite loop in SD-UHS voltage switch
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (31 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 032/210] mmc: core: Replace with already defined values for readability Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 034/210] rpmsg: qcom: glink: replace strncpy() with strscpy_pad() Greg Kroah-Hartman
` (179 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Brian Norris, Guenter Roeck, Ulf Hansson
From: Brian Norris <briannorris@chromium.org>
commit e9233917a7e53980664efbc565888163c0a33c3f upstream.
This loop intends to retry a max of 10 times, with some implicit
termination based on the SD_{R,}OCR_S18A bit. Unfortunately, the
termination condition depends on the value reported by the SD card
(*rocr), which may or may not correctly reflect what we asked it to do.
Needless to say, it's not wise to rely on the card doing what we expect;
we should at least terminate the loop regardless. So, check both the
input and output values, so we ensure we will terminate regardless of
the SD card behavior.
Note that SDIO learned a similar retry loop in commit 0797e5f1453b
("mmc: core: Fixup signal voltage switch"), but that used the 'ocr'
result, and so the current pre-terminating condition looks like:
rocr & ocr & R4_18V_PRESENT
(i.e., it doesn't have the same bug.)
This addresses a number of crash reports seen on ChromeOS that look
like the following:
... // lots of repeated: ...
<4>[13142.846061] mmc1: Skipping voltage switch
<4>[13143.406087] mmc1: Skipping voltage switch
<4>[13143.964724] mmc1: Skipping voltage switch
<4>[13144.526089] mmc1: Skipping voltage switch
<4>[13145.086088] mmc1: Skipping voltage switch
<4>[13145.645941] mmc1: Skipping voltage switch
<3>[13146.153969] INFO: task halt:30352 blocked for more than 122 seconds.
...
Fixes: f2119df6b764 ("mmc: sd: add support for signal voltage switch procedure")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220914014010.2076169-1-briannorris@chromium.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/core/sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -793,7 +793,8 @@ try_again:
* the CCS bit is set as well. We deliberately deviate from the spec in
* regards to this, which allows UHS-I to be supported for SDSC cards.
*/
- if (!mmc_host_is_spi(host) && rocr && (*rocr & SD_ROCR_S18A)) {
+ if (!mmc_host_is_spi(host) && (ocr & SD_OCR_S18R) &&
+ rocr && (*rocr & SD_ROCR_S18A)) {
err = mmc_set_uhs_voltage(host, pocr);
if (err == -EAGAIN) {
retries--;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 034/210] rpmsg: qcom: glink: replace strncpy() with strscpy_pad()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (32 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 033/210] mmc: core: Terminate infinite loop in SD-UHS voltage switch Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 035/210] netfilter: nf_queue: fix socket leak Greg Kroah-Hartman
` (178 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Krzysztof Kozlowski, Stephen Boyd,
Bjorn Andersson, Andrew Chernyakov
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
commit 766279a8f85df32345dbda03b102ca1ee3d5ddea upstream.
The use of strncpy() is considered deprecated for NUL-terminated
strings[1]. Replace strncpy() with strscpy_pad(), to keep existing
pad-behavior of strncpy, similarly to commit 08de420a8014 ("rpmsg:
glink: Replace strncpy() with strscpy_pad()"). This fixes W=1 warning:
In function ‘qcom_glink_rx_close’,
inlined from ‘qcom_glink_work’ at ../drivers/rpmsg/qcom_glink_native.c:1638:4:
drivers/rpmsg/qcom_glink_native.c:1549:17: warning: ‘strncpy’ specified bound 32 equals destination size [-Wstringop-truncation]
1549 | strncpy(chinfo.name, channel->name, sizeof(chinfo.name));
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220519073330.7187-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Andrew Chernyakov <acherniakov@astralinux.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/rpmsg/qcom_glink_native.c | 2 +-
drivers/rpmsg/qcom_smd.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1447,7 +1447,7 @@ static void qcom_glink_rx_close(struct q
cancel_work_sync(&channel->intent_work);
if (channel->rpdev) {
- strncpy(chinfo.name, channel->name, sizeof(chinfo.name));
+ strscpy_pad(chinfo.name, channel->name, sizeof(chinfo.name));
chinfo.src = RPMSG_ADDR_ANY;
chinfo.dst = RPMSG_ADDR_ANY;
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1000,7 +1000,7 @@ static int qcom_smd_create_device(struct
/* Assign public information to the rpmsg_device */
rpdev = &qsdev->rpdev;
- strncpy(rpdev->id.name, channel->name, RPMSG_NAME_SIZE);
+ strscpy_pad(rpdev->id.name, channel->name, RPMSG_NAME_SIZE);
rpdev->src = RPMSG_ADDR_ANY;
rpdev->dst = RPMSG_ADDR_ANY;
@@ -1230,7 +1230,7 @@ static void qcom_channel_state_worker(st
spin_unlock_irqrestore(&edge->channels_lock, flags);
- strncpy(chinfo.name, channel->name, sizeof(chinfo.name));
+ strscpy_pad(chinfo.name, channel->name, sizeof(chinfo.name));
chinfo.src = RPMSG_ADDR_ANY;
chinfo.dst = RPMSG_ADDR_ANY;
rpmsg_unregister_device(&edge->dev, &chinfo);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 035/210] netfilter: nf_queue: fix socket leak
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (33 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 034/210] rpmsg: qcom: glink: replace strncpy() with strscpy_pad() Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 036/210] nilfs2: fix NULL pointer dereference at nilfs_bmap_lookup_at_level() Greg Kroah-Hartman
` (177 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Greg Kroah-Hartman, fw@strlen.de, avimalin@gmail.com,
Vimal Agrawal, Florian Westphal, Vimal Agrawal
From: Vimal Agrawal <avimalin@gmail.com>
Removal of the sock_hold got lost when backporting commit 4d05239203fa
("netfilter: nf_queue: fix possible use-after-free") to 4.14
This was causing a socket leak and was caught by kmemleak.
Tested by running kmemleak again with this fix.
Fixes: ef97921ccdc2 ("netfilter: nf_queue: fix possible use-after-free") in 4.14
Signed-off-by: Vimal Agrawal <vimal.agrawal@sophos.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
---
net/netfilter/nf_queue.c | 2 --
1 file changed, 2 deletions(-)
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -91,8 +91,6 @@ bool nf_queue_entry_get_refs(struct nf_q
dev_hold(state->in);
if (state->out)
dev_hold(state->out);
- if (state->sk)
- sock_hold(state->sk);
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (entry->skb->nf_bridge) {
struct net_device *physdev;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 036/210] nilfs2: fix NULL pointer dereference at nilfs_bmap_lookup_at_level()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (34 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 035/210] netfilter: nf_queue: fix socket leak Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 037/210] nilfs2: fix leak of nilfs_root in case of writer thread creation failure Greg Kroah-Hartman
` (176 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ryusuke Konishi,
syzbot+2b32eb36c1a825b7a74c, Tetsuo Handa, Andrew Morton
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
commit 21a87d88c2253350e115029f14fe2a10a7e6c856 upstream.
If the i_mode field in inode of metadata files is corrupted on disk, it
can cause the initialization of bmap structure, which should have been
called from nilfs_read_inode_common(), not to be called. This causes a
lockdep warning followed by a NULL pointer dereference at
nilfs_bmap_lookup_at_level().
This patch fixes these issues by adding a missing sanitiy check for the
i_mode field of metadata file's inode.
Link: https://lkml.kernel.org/r/20221002030804.29978-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+2b32eb36c1a825b7a74c@syzkaller.appspotmail.com
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/inode.c | 2 ++
1 file changed, 2 insertions(+)
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -455,6 +455,8 @@ int nilfs_read_inode_common(struct inode
inode->i_atime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
inode->i_ctime.tv_nsec = le32_to_cpu(raw_inode->i_ctime_nsec);
inode->i_mtime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
+ if (nilfs_is_metadata_file_inode(inode) && !S_ISREG(inode->i_mode))
+ return -EIO; /* this inode is for metadata and corrupted */
if (inode->i_nlink == 0)
return -ESTALE; /* this inode is deleted */
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 037/210] nilfs2: fix leak of nilfs_root in case of writer thread creation failure
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (35 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 036/210] nilfs2: fix NULL pointer dereference at nilfs_bmap_lookup_at_level() Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 038/210] nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure Greg Kroah-Hartman
` (175 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ryusuke Konishi,
syzbot+7381dc4ad60658ca4c05, Andrew Morton
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
commit d0d51a97063db4704a5ef6bc978dddab1636a306 upstream.
If nilfs_attach_log_writer() failed to create a log writer thread, it
frees a data structure of the log writer without any cleanup. After
commit e912a5b66837 ("nilfs2: use root object to get ifile"), this causes
a leak of struct nilfs_root, which started to leak an ifile metadata inode
and a kobject on that struct.
In addition, if the kernel is booted with panic_on_warn, the above
ifile metadata inode leak will cause the following panic when the
nilfs2 kernel module is removed:
kmem_cache_destroy nilfs2_inode_cache: Slab cache still has objects when
called from nilfs_destroy_cachep+0x16/0x3a [nilfs2]
WARNING: CPU: 8 PID: 1464 at mm/slab_common.c:494 kmem_cache_destroy+0x138/0x140
...
RIP: 0010:kmem_cache_destroy+0x138/0x140
Code: 00 20 00 00 e8 a9 55 d8 ff e9 76 ff ff ff 48 8b 53 60 48 c7 c6 20 70 65 86 48 c7 c7 d8 69 9c 86 48 8b 4c 24 28 e8 ef 71 c7 00 <0f> 0b e9 53 ff ff ff c3 48 81 ff ff 0f 00 00 77 03 31 c0 c3 53 48
...
Call Trace:
<TASK>
? nilfs_palloc_freev.cold.24+0x58/0x58 [nilfs2]
nilfs_destroy_cachep+0x16/0x3a [nilfs2]
exit_nilfs_fs+0xa/0x1b [nilfs2]
__x64_sys_delete_module+0x1d9/0x3a0
? __sanitizer_cov_trace_pc+0x1a/0x50
? syscall_trace_enter.isra.19+0x119/0x190
do_syscall_64+0x34/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
...
</TASK>
Kernel panic - not syncing: panic_on_warn set ...
This patch fixes these issues by calling nilfs_detach_log_writer() cleanup
function if spawning the log writer thread fails.
Link: https://lkml.kernel.org/r/20221007085226.57667-1-konishi.ryusuke@gmail.com
Fixes: e912a5b66837 ("nilfs2: use root object to get ifile")
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+7381dc4ad60658ca4c05@syzkaller.appspotmail.com
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/segment.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -2797,10 +2797,9 @@ int nilfs_attach_log_writer(struct super
inode_attach_wb(nilfs->ns_bdev->bd_inode, NULL);
err = nilfs_segctor_start_thread(nilfs->ns_writer);
- if (err) {
- kfree(nilfs->ns_writer);
- nilfs->ns_writer = NULL;
- }
+ if (unlikely(err))
+ nilfs_detach_log_writer(sb);
+
return err;
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 038/210] nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (36 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 037/210] nilfs2: fix leak of nilfs_root in case of writer thread creation failure Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 039/210] ceph: dont truncate file in atomic_open Greg Kroah-Hartman
` (174 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ryusuke Konishi,
syzbot+fbb3e0b24e8dae5a16ee, Andrew Morton
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
commit 723ac751208f6d6540191689cfbf6c77135a7a1b upstream.
If creation or finalization of a checkpoint fails due to anomalies in the
checkpoint metadata on disk, a kernel warning is generated.
This patch replaces the WARN_ONs by nilfs_error, so that a kernel, booted
with panic_on_warn, does not panic. A nilfs_error is appropriate here to
handle the abnormal filesystem condition.
This also replaces the detected error codes with an I/O error so that
neither of the internal error codes is returned to callers.
Link: https://lkml.kernel.org/r/20220929123330.19658-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+fbb3e0b24e8dae5a16ee@syzkaller.appspotmail.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/segment.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -890,9 +890,11 @@ static int nilfs_segctor_create_checkpoi
nilfs_mdt_mark_dirty(nilfs->ns_cpfile);
nilfs_cpfile_put_checkpoint(
nilfs->ns_cpfile, nilfs->ns_cno, bh_cp);
- } else
- WARN_ON(err == -EINVAL || err == -ENOENT);
-
+ } else if (err == -EINVAL || err == -ENOENT) {
+ nilfs_error(sci->sc_super,
+ "checkpoint creation failed due to metadata corruption.");
+ err = -EIO;
+ }
return err;
}
@@ -906,7 +908,11 @@ static int nilfs_segctor_fill_in_checkpo
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, 0,
&raw_cp, &bh_cp);
if (unlikely(err)) {
- WARN_ON(err == -EINVAL || err == -ENOENT);
+ if (err == -EINVAL || err == -ENOENT) {
+ nilfs_error(sci->sc_super,
+ "checkpoint finalization failed due to metadata corruption.");
+ err = -EIO;
+ }
goto failed_ibh;
}
raw_cp->cp_snapshot_list.ssl_next = 0;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 039/210] ceph: dont truncate file in atomic_open
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (37 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 038/210] nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 040/210] random: clamp credited irq bits to maximum mixed Greg Kroah-Hartman
` (173 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hu Weiwen, Xiubo Li, Ilya Dryomov
From: Hu Weiwen <sehuww@mail.scut.edu.cn>
commit 7cb9994754f8a36ae9e5ec4597c5c4c2d6c03832 upstream.
Clear O_TRUNC from the flags sent in the MDS create request.
`atomic_open' is called before permission check. We should not do any
modification to the file here. The caller will do the truncation
afterward.
Fixes: 124e68e74099 ("ceph: file operations")
Signed-off-by: Hu Weiwen <sehuww@mail.scut.edu.cn>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
[Xiubo: fixed a trivial conflict for 5.10 backport]
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ceph/file.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -381,6 +381,12 @@ int ceph_atomic_open(struct inode *dir,
if (dentry->d_name.len > NAME_MAX)
return -ENAMETOOLONG;
+ /*
+ * Do not truncate the file, since atomic_open is called before the
+ * permission check. The caller will do the truncation afterward.
+ */
+ flags &= ~O_TRUNC;
+
if (flags & O_CREAT) {
err = ceph_pre_init_acls(dir, &mode, &acls);
if (err < 0)
@@ -411,9 +417,7 @@ int ceph_atomic_open(struct inode *dir,
req->r_parent = dir;
set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
- err = ceph_mdsc_do_request(mdsc,
- (flags & (O_CREAT|O_TRUNC)) ? dir : NULL,
- req);
+ err = ceph_mdsc_do_request(mdsc, (flags & O_CREAT) ? dir : NULL, req);
err = ceph_handle_snapdir(req, dentry, err);
if (err)
goto out_req;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 040/210] random: clamp credited irq bits to maximum mixed
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (38 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 039/210] ceph: dont truncate file in atomic_open Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 041/210] ALSA: hda: Fix position reporting on Poulsbo Greg Kroah-Hartman
` (172 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jason A. Donenfeld
From: Jason A. Donenfeld <Jason@zx2c4.com>
commit e78a802a7b4febf53f2a92842f494b01062d85a8 upstream.
Since the most that's mixed into the pool is sizeof(long)*2, don't
credit more than that many bytes of entropy.
Fixes: e3e33fc2ea7f ("random: do not use input pool from hard IRQs")
Cc: stable@vger.kernel.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/random.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -976,7 +976,7 @@ static void mix_interrupt_randomness(str
local_irq_enable();
mix_pool_bytes(pool, sizeof(pool));
- credit_init_bits(max(1u, (count & U16_MAX) / 64));
+ credit_init_bits(clamp_t(unsigned int, (count & U16_MAX) / 64, 1, sizeof(pool) * 8));
memzero_explicit(pool, sizeof(pool));
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 041/210] ALSA: hda: Fix position reporting on Poulsbo
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (39 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 040/210] random: clamp credited irq bits to maximum mixed Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 042/210] scsi: stex: Properly zero out the passthrough command structure Greg Kroah-Hartman
` (171 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai, Hans de Goede
From: Takashi Iwai <tiwai@suse.de>
commit 56e696c0f0c71b77fff921fc94b58a02f0445b2c upstream.
Hans reported that his Sony VAIO VPX11S1E showed the broken sound
behavior at the start of the stream for a couple of seconds, and it
turned out that the position_fix=1 option fixes the issue. It implies
that the position reporting is inaccurate, and very likely hitting on
all Poulsbo devices.
The patch applies the workaround for Poulsbo generically to switch to
LPIB mode instead of the default position buffer.
Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/3e8697e1-87c6-7a7b-d2e8-b21f1d2f181b@redhat.com
Link: https://lore.kernel.org/r/20221001142124.7241-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/hda_intel.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2571,7 +2571,8 @@ static const struct pci_device_id azx_id
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* Poulsbo */
{ PCI_DEVICE(0x8086, 0x811b),
- .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
+ .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
+ AZX_DCAPS_POSFIX_LPIB },
/* Oaktrail */
{ PCI_DEVICE(0x8086, 0x080a),
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 042/210] scsi: stex: Properly zero out the passthrough command structure
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (40 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 041/210] ALSA: hda: Fix position reporting on Poulsbo Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 043/210] USB: serial: qcserial: add new usb-id for Dell branded EM7455 Greg Kroah-Hartman
` (170 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, stable, James E.J. Bottomley,
Martin K. Petersen, Dan Carpenter, hdthky, Linus Torvalds
From: Linus Torvalds <torvalds@linux-foundation.org>
commit 6022f210461fef67e6e676fd8544ca02d1bcfa7a upstream.
The passthrough structure is declared off of the stack, so it needs to be
set to zero before copied back to userspace to prevent any unintentional
data leakage. Switch things to be statically allocated which will fill the
unused fields with 0 automatically.
Link: https://lore.kernel.org/r/YxrjN3OOw2HHl9tx@kroah.com
Cc: stable@kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: hdthky <hdthky0@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/stex.c | 17 +++++++++--------
include/scsi/scsi_cmnd.h | 2 +-
2 files changed, 10 insertions(+), 9 deletions(-)
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -673,16 +673,17 @@ stex_queuecommand_lck(struct scsi_cmnd *
return 0;
case PASSTHRU_CMD:
if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
- struct st_drvver ver;
+ const struct st_drvver ver = {
+ .major = ST_VER_MAJOR,
+ .minor = ST_VER_MINOR,
+ .oem = ST_OEM,
+ .build = ST_BUILD_VER,
+ .signature[0] = PASSTHRU_SIGNATURE,
+ .console_id = host->max_id - 1,
+ .host_no = hba->host->host_no,
+ };
size_t cp_len = sizeof(ver);
- ver.major = ST_VER_MAJOR;
- ver.minor = ST_VER_MINOR;
- ver.oem = ST_OEM;
- ver.build = ST_BUILD_VER;
- ver.signature[0] = PASSTHRU_SIGNATURE;
- ver.console_id = host->max_id - 1;
- ver.host_no = hba->host->host_no;
cp_len = scsi_sg_copy_from_buffer(cmd, &ver, cp_len);
cmd->result = sizeof(ver) == cp_len ?
DID_OK << 16 | COMMAND_COMPLETE << 8 :
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -225,7 +225,7 @@ static inline struct scsi_data_buffer *s
}
static inline int scsi_sg_copy_from_buffer(struct scsi_cmnd *cmd,
- void *buf, int buflen)
+ const void *buf, int buflen)
{
return sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
buf, buflen);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 043/210] USB: serial: qcserial: add new usb-id for Dell branded EM7455
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (41 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 042/210] scsi: stex: Properly zero out the passthrough command structure Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 044/210] random: restore O_NONBLOCK support Greg Kroah-Hartman
` (169 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Frank Wunderlich, Johan Hovold
From: Frank Wunderlich <frank-w@public-files.de>
commit eee48781ea199e32c1d0c4732641c494833788ca upstream.
Add support for Dell 5811e (EM7455) with USB-id 0x413c:0x81c2.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/serial/qcserial.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -181,6 +181,7 @@ static const struct usb_device_id id_tab
{DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
{DEVICE_SWI(0x413c, 0x81b5)}, /* Dell Wireless 5811e QDL */
{DEVICE_SWI(0x413c, 0x81b6)}, /* Dell Wireless 5811e QDL */
+ {DEVICE_SWI(0x413c, 0x81c2)}, /* Dell Wireless 5811e */
{DEVICE_SWI(0x413c, 0x81cb)}, /* Dell Wireless 5816e QDL */
{DEVICE_SWI(0x413c, 0x81cc)}, /* Dell Wireless 5816e */
{DEVICE_SWI(0x413c, 0x81cf)}, /* Dell Wireless 5819 */
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 044/210] random: restore O_NONBLOCK support
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (42 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 043/210] USB: serial: qcserial: add new usb-id for Dell branded EM7455 Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 045/210] random: avoid reading two cache lines on irq randomness Greg Kroah-Hartman
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212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Guozihua, Zhongguohua, Al Viro,
Theodore Tso, Andrew Lutomirski, Jason A. Donenfeld
From: Jason A. Donenfeld <Jason@zx2c4.com>
commit cd4f24ae9404fd31fc461066e57889be3b68641b upstream.
Prior to 5.6, when /dev/random was opened with O_NONBLOCK, it would
return -EAGAIN if there was no entropy. When the pools were unified in
5.6, this was lost. The post 5.6 behavior of blocking until the pool is
initialized, and ignoring O_NONBLOCK in the process, went unnoticed,
with no reports about the regression received for two and a half years.
However, eventually this indeed did break somebody's userspace.
So we restore the old behavior, by returning -EAGAIN if the pool is not
initialized. Unlike the old /dev/random, this can only occur during
early boot, after which it never blocks again.
In order to make this O_NONBLOCK behavior consistent with other
expectations, also respect users reading with preadv2(RWF_NOWAIT) and
similar.
Fixes: 30c08efec888 ("random: make /dev/random be almost like /dev/urandom")
Reported-by: Guozihua <guozihua@huawei.com>
Reported-by: Zhongguohua <zhongguohua1@huawei.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Andrew Lutomirski <luto@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/mem.c | 4 ++--
drivers/char/random.c | 5 +++++
2 files changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -887,8 +887,8 @@ static const struct memdev {
#endif
[5] = { "zero", 0666, &zero_fops, 0 },
[7] = { "full", 0666, &full_fops, 0 },
- [8] = { "random", 0666, &random_fops, 0 },
- [9] = { "urandom", 0666, &urandom_fops, 0 },
+ [8] = { "random", 0666, &random_fops, FMODE_NOWAIT },
+ [9] = { "urandom", 0666, &urandom_fops, FMODE_NOWAIT },
#ifdef CONFIG_PRINTK
[11] = { "kmsg", 0644, &kmsg_fops, 0 },
#endif
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1294,6 +1294,11 @@ static ssize_t random_read_iter(struct k
{
int ret;
+ if (!crng_ready() &&
+ ((kiocb->ki_flags & IOCB_NOWAIT) ||
+ (kiocb->ki_filp->f_flags & O_NONBLOCK)))
+ return -EAGAIN;
+
ret = wait_for_random_bytes();
if (ret != 0)
return ret;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 045/210] random: avoid reading two cache lines on irq randomness
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (43 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 044/210] random: restore O_NONBLOCK support Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 046/210] wifi: mac80211_hwsim: avoid mac80211 warning on bad rate Greg Kroah-Hartman
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212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sebastian Andrzej Siewior,
Jason A. Donenfeld
From: Jason A. Donenfeld <Jason@zx2c4.com>
commit 9ee0507e896b45af6d65408c77815800bce30008 upstream.
In order to avoid reading and dirtying two cache lines on every IRQ,
move the work_struct to the bottom of the fast_pool struct. add_
interrupt_randomness() always touches .pool and .count, which are
currently split, because .mix pushes everything down. Instead, move .mix
to the bottom, so that .pool and .count are always in the first cache
line, since .mix is only accessed when the pool is full.
Fixes: 58340f8e952b ("random: defer fast pool mixing to worker")
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/random.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -890,10 +890,10 @@ void __init add_bootloader_randomness(co
}
struct fast_pool {
- struct work_struct mix;
unsigned long pool[4];
unsigned long last;
unsigned int count;
+ struct work_struct mix;
};
static DEFINE_PER_CPU(struct fast_pool, irq_randomness) = {
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 046/210] wifi: mac80211_hwsim: avoid mac80211 warning on bad rate
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (44 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 045/210] random: avoid reading two cache lines on irq randomness Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 047/210] Input: xpad - add supported devices as contributed on github Greg Kroah-Hartman
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212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Sönke Huster, Johannes Berg
From: Johannes Berg <johannes.berg@intel.com>
commit 1833b6f46d7e2830251a063935ab464256defe22 upstream.
If the tool on the other side (e.g. wmediumd) gets confused
about the rate, we hit a warning in mac80211. Silence that
by effectively duplicating the check here and dropping the
frame silently (in mac80211 it's dropped with the warning).
Reported-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de>
Tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/mac80211_hwsim.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -3075,6 +3075,8 @@ static int hwsim_cloned_frame_received_n
rx_status.band = data2->channel->band;
rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
+ if (rx_status.rate_idx >= data2->hw->wiphy->bands[rx_status.band]->n_bitrates)
+ goto out;
rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 047/210] Input: xpad - add supported devices as contributed on github
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (45 preceding siblings ...)
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@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 048/210] Input: xpad - fix wireless 360 controller breaking after suspend Greg Kroah-Hartman
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212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jasper Poppe, Jeremy Palmer, Ruineka,
Cleber de Mattos Casali, Kyle Gospodnetich, Pavel Rojtberg,
Dmitry Torokhov
From: Pavel Rojtberg <rojtberg@gmail.com>
commit b382c5e37344883dc97525d05f1f6b788f549985 upstream.
This is based on multiple commits at https://github.com/paroj/xpad
Cc: stable@vger.kernel.org
Signed-off-by: Jasper Poppe <jgpoppe@gmail.com>
Signed-off-by: Jeremy Palmer <jpalmer@linz.govt.nz>
Signed-off-by: Ruineka <ruinairas1992@gmail.com>
Signed-off-by: Cleber de Mattos Casali <clebercasali@gmail.com>
Signed-off-by: Kyle Gospodnetich <me@kylegospodneti.ch>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Link: https://lore.kernel.org/r/20220818154411.510308-2-rojtberg@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/joystick/xpad.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -129,6 +129,8 @@ static const struct xpad_device {
u8 xtype;
} xpad_device[] = {
{ 0x0079, 0x18d4, "GPD Win 2 X-Box Controller", 0, XTYPE_XBOX360 },
+ { 0x03eb, 0xff01, "Wooting One (Legacy)", 0, XTYPE_XBOX360 },
+ { 0x03eb, 0xff02, "Wooting Two (Legacy)", 0, XTYPE_XBOX360 },
{ 0x044f, 0x0f00, "Thrustmaster Wheel", 0, XTYPE_XBOX },
{ 0x044f, 0x0f03, "Thrustmaster Wheel", 0, XTYPE_XBOX },
{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
@@ -259,6 +261,7 @@ static const struct xpad_device {
{ 0x0f0d, 0x0063, "Hori Real Arcade Pro Hayabusa (USA) Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
{ 0x0f0d, 0x0067, "HORIPAD ONE", 0, XTYPE_XBOXONE },
{ 0x0f0d, 0x0078, "Hori Real Arcade Pro V Kai Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+ { 0x0f0d, 0x00c5, "Hori Fighting Commander ONE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
{ 0x0f30, 0x010b, "Philips Recoil", 0, XTYPE_XBOX },
{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
@@ -275,6 +278,7 @@ static const struct xpad_device {
{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x1430, 0xf801, "RedOctane Controller", 0, XTYPE_XBOX360 },
{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
+ { 0x146b, 0x0604, "Bigben Interactive DAIJA Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
{ 0x1532, 0x0a00, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
@@ -339,6 +343,7 @@ static const struct xpad_device {
{ 0x24c6, 0x5502, "Hori Fighting Stick VX Alt", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x24c6, 0x5503, "Hori Fighting Edge", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
+ { 0x24c6, 0x5510, "Hori Fighting Commander ONE (Xbox 360/PC Mode)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x24c6, 0x550d, "Hori GEM Xbox controller", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x550e, "Hori Real Arcade Pro V Kai 360", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x24c6, 0x551a, "PowerA FUSION Pro Controller", 0, XTYPE_XBOXONE },
@@ -348,6 +353,14 @@ static const struct xpad_device {
{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
{ 0x24c6, 0xfafe, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+ { 0x2563, 0x058d, "OneXPlayer Gamepad", 0, XTYPE_XBOX360 },
+ { 0x2dc8, 0x2000, "8BitDo Pro 2 Wired Controller fox Xbox", 0, XTYPE_XBOXONE },
+ { 0x31e3, 0x1100, "Wooting One", 0, XTYPE_XBOX360 },
+ { 0x31e3, 0x1200, "Wooting Two", 0, XTYPE_XBOX360 },
+ { 0x31e3, 0x1210, "Wooting Lekker", 0, XTYPE_XBOX360 },
+ { 0x31e3, 0x1220, "Wooting Two HE", 0, XTYPE_XBOX360 },
+ { 0x31e3, 0x1300, "Wooting 60HE (AVR)", 0, XTYPE_XBOX360 },
+ { 0x31e3, 0x1310, "Wooting 60HE (ARM)", 0, XTYPE_XBOX360 },
{ 0x3285, 0x0607, "Nacon GC-100", 0, XTYPE_XBOX360 },
{ 0x3767, 0x0101, "Fanatec Speedster 3 Forceshock Wheel", 0, XTYPE_XBOX },
{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
@@ -433,6 +446,7 @@ static const signed short xpad_abs_trigg
static const struct usb_device_id xpad_table[] = {
{ USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
XPAD_XBOX360_VENDOR(0x0079), /* GPD Win 2 Controller */
+ XPAD_XBOX360_VENDOR(0x03eb), /* Wooting Keyboards (Legacy) */
XPAD_XBOX360_VENDOR(0x044f), /* Thrustmaster X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x045e), /* Microsoft X-Box 360 controllers */
XPAD_XBOXONE_VENDOR(0x045e), /* Microsoft X-Box One controllers */
@@ -443,6 +457,7 @@ static const struct usb_device_id xpad_t
{ USB_DEVICE(0x0738, 0x4540) }, /* Mad Catz Beat Pad */
XPAD_XBOXONE_VENDOR(0x0738), /* Mad Catz FightStick TE 2 */
XPAD_XBOX360_VENDOR(0x07ff), /* Mad Catz GamePad */
+ XPAD_XBOX360_VENDOR(0x0c12), /* Zeroplus X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x0e6f), /* 0x0e6f X-Box 360 controllers */
XPAD_XBOXONE_VENDOR(0x0e6f), /* 0x0e6f X-Box One controllers */
XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */
@@ -463,8 +478,12 @@ static const struct usb_device_id xpad_t
XPAD_XBOXONE_VENDOR(0x20d6), /* PowerA Controllers */
XPAD_XBOX360_VENDOR(0x24c6), /* PowerA Controllers */
XPAD_XBOXONE_VENDOR(0x24c6), /* PowerA Controllers */
+ XPAD_XBOX360_VENDOR(0x2563), /* OneXPlayer Gamepad */
+ XPAD_XBOX360_VENDOR(0x260d), /* Dareu H101 */
+ XPAD_XBOXONE_VENDOR(0x2dc8), /* 8BitDo Pro 2 Wired Controller for Xbox */
XPAD_XBOXONE_VENDOR(0x2e24), /* Hyperkin Duke X-Box One pad */
XPAD_XBOX360_VENDOR(0x2f24), /* GameSir Controllers */
+ XPAD_XBOX360_VENDOR(0x31e3), /* Wooting Keyboards */
XPAD_XBOX360_VENDOR(0x3285), /* Nacon GC-100 */
{ }
};
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 048/210] Input: xpad - fix wireless 360 controller breaking after suspend
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (46 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 047/210] Input: xpad - add supported devices as contributed on github Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 049/210] random: use expired timer rather than wq for mixing fast pool Greg Kroah-Hartman
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212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Cameron Gutman, Pavel Rojtberg,
Dmitry Torokhov
From: Cameron Gutman <aicommander@gmail.com>
commit a17b9841152e7f4621619902b347e2cc39c32996 upstream.
Suspending and resuming the system can sometimes cause the out
URB to get hung after a reset_resume. This causes LED setting
and force feedback to break on resume. To avoid this, just drop
the reset_resume callback so the USB core rebinds xpad to the
wireless pads on resume if a reset happened.
A nice side effect of this change is the LED ring on wireless
controllers is now set correctly on system resume.
Cc: stable@vger.kernel.org
Fixes: 4220f7db1e42 ("Input: xpad - workaround dead irq_out after suspend/ resume")
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Link: https://lore.kernel.org/r/20220818154411.510308-3-rojtberg@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/joystick/xpad.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -2000,7 +2000,6 @@ static struct usb_driver xpad_driver = {
.disconnect = xpad_disconnect,
.suspend = xpad_suspend,
.resume = xpad_resume,
- .reset_resume = xpad_resume,
.id_table = xpad_table,
};
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 049/210] random: use expired timer rather than wq for mixing fast pool
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (47 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 048/210] Input: xpad - fix wireless 360 controller breaking after suspend Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 050/210] ALSA: oss: Fix potential deadlock at unregistration Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sherry Yang, Paul Webb,
Phillip Goerl, Jack Vogel, Nicky Veitch, Colm Harrington,
Ramanan Govindarajan, Sebastian Andrzej Siewior,
Dominik Brodowski, Tejun Heo, Sultan Alsawaf, Jason A. Donenfeld
From: Jason A. Donenfeld <Jason@zx2c4.com>
commit 748bc4dd9e663f23448d8ad7e58c011a67ea1eca upstream.
Previously, the fast pool was dumped into the main pool periodically in
the fast pool's hard IRQ handler. This worked fine and there weren't
problems with it, until RT came around. Since RT converts spinlocks into
sleeping locks, problems cropped up. Rather than switching to raw
spinlocks, the RT developers preferred we make the transformation from
originally doing:
do_some_stuff()
spin_lock()
do_some_other_stuff()
spin_unlock()
to doing:
do_some_stuff()
queue_work_on(some_other_stuff_worker)
This is an ordinary pattern done all over the kernel. However, Sherry
noticed a 10% performance regression in qperf TCP over a 40gbps
InfiniBand card. Quoting her message:
> MT27500 Family [ConnectX-3] cards:
> Infiniband device 'mlx4_0' port 1 status:
> default gid: fe80:0000:0000:0000:0010:e000:0178:9eb1
> base lid: 0x6
> sm lid: 0x1
> state: 4: ACTIVE
> phys state: 5: LinkUp
> rate: 40 Gb/sec (4X QDR)
> link_layer: InfiniBand
>
> Cards are configured with IP addresses on private subnet for IPoIB
> performance testing.
> Regression identified in this bug is in TCP latency in this stack as reported
> by qperf tcp_lat metric:
>
> We have one system listen as a qperf server:
> [root@yourQperfServer ~]# qperf
>
> Have the other system connect to qperf server as a client (in this
> case, it’s X7 server with Mellanox card):
> [root@yourQperfClient ~]# numactl -m0 -N0 qperf 20.20.20.101 -v -uu -ub --time 60 --wait_server 20 -oo msg_size:4K:1024K:*2 tcp_lat
Rather than incur the scheduling latency from queue_work_on, we can
instead switch to running on the next timer tick, on the same core. This
also batches things a bit more -- once per jiffy -- which is okay now
that mix_interrupt_randomness() can credit multiple bits at once.
Reported-by: Sherry Yang <sherry.yang@oracle.com>
Tested-by: Paul Webb <paul.x.webb@oracle.com>
Cc: Sherry Yang <sherry.yang@oracle.com>
Cc: Phillip Goerl <phillip.goerl@oracle.com>
Cc: Jack Vogel <jack.vogel@oracle.com>
Cc: Nicky Veitch <nicky.veitch@oracle.com>
Cc: Colm Harrington <colm.harrington@oracle.com>
Cc: Ramanan Govindarajan <ramanan.govindarajan@oracle.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Tejun Heo <tj@kernel.org>
Cc: Sultan Alsawaf <sultan@kerneltoast.com>
Cc: stable@vger.kernel.org
Fixes: 58340f8e952b ("random: defer fast pool mixing to worker")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/random.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -893,7 +893,7 @@ struct fast_pool {
unsigned long pool[4];
unsigned long last;
unsigned int count;
- struct work_struct mix;
+ struct timer_list mix;
};
static DEFINE_PER_CPU(struct fast_pool, irq_randomness) = {
@@ -945,9 +945,9 @@ int __cold random_online_cpu(unsigned in
}
#endif
-static void mix_interrupt_randomness(struct work_struct *work)
+static void mix_interrupt_randomness(unsigned long data)
{
- struct fast_pool *fast_pool = container_of(work, struct fast_pool, mix);
+ struct fast_pool *fast_pool = (struct fast_pool *)data;
/*
* The size of the copied stack pool is explicitly 2 longs so that we
* only ever ingest half of the siphash output each time, retaining
@@ -999,10 +999,14 @@ void add_interrupt_randomness(int irq)
if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ))
return;
- if (unlikely(!fast_pool->mix.func))
- INIT_WORK(&fast_pool->mix, mix_interrupt_randomness);
+ if (unlikely(!fast_pool->mix.data))
+ setup_timer(&fast_pool->mix, mix_interrupt_randomness, (unsigned long)fast_pool);
+
fast_pool->count |= MIX_INFLIGHT;
- queue_work_on(raw_smp_processor_id(), system_highpri_wq, &fast_pool->mix);
+ if (!timer_pending(&fast_pool->mix)) {
+ fast_pool->mix.expires = jiffies;
+ add_timer_on(&fast_pool->mix, raw_smp_processor_id());
+ }
}
EXPORT_SYMBOL_GPL(add_interrupt_randomness);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 050/210] ALSA: oss: Fix potential deadlock at unregistration
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (48 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 049/210] random: use expired timer rather than wq for mixing fast pool Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 051/210] ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free() Greg Kroah-Hartman
` (162 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 97d917879d7f92df09c3f21fd54609a8bcd654b2 upstream.
We took sound_oss_mutex around the calls of unregister_sound_special()
at unregistering OSS devices. This may, however, lead to a deadlock,
because we manage the card release via the card's device object, and
the release may happen at unregister_sound_special() call -- which
will take sound_oss_mutex again in turn.
Although the deadlock might be fixed by relaxing the rawmidi mutex in
the previous commit, it's safer to move unregister_sound_special()
calls themselves out of the sound_oss_mutex, too. The call is
race-safe as the function has a spinlock protection by itself.
Link: https://lore.kernel.org/r/CAB7eexJP7w1B0mVgDF0dQ+gWor7UdkiwPczmL7pn91xx8xpzOA@mail.gmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221011070147.7611-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/core/sound_oss.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
--- a/sound/core/sound_oss.c
+++ b/sound/core/sound_oss.c
@@ -177,7 +177,6 @@ int snd_unregister_oss_device(int type,
mutex_unlock(&sound_oss_mutex);
return -ENOENT;
}
- unregister_sound_special(minor);
switch (SNDRV_MINOR_OSS_DEVICE(minor)) {
case SNDRV_MINOR_OSS_PCM:
track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_AUDIO);
@@ -189,12 +188,18 @@ int snd_unregister_oss_device(int type,
track2 = SNDRV_MINOR_OSS(cidx, SNDRV_MINOR_OSS_DMMIDI1);
break;
}
- if (track2 >= 0) {
- unregister_sound_special(track2);
+ if (track2 >= 0)
snd_oss_minors[track2] = NULL;
- }
snd_oss_minors[minor] = NULL;
mutex_unlock(&sound_oss_mutex);
+
+ /* call unregister_sound_special() outside sound_oss_mutex;
+ * otherwise may deadlock, as it can trigger the release of a card
+ */
+ unregister_sound_special(minor);
+ if (track2 >= 0)
+ unregister_sound_special(track2);
+
kfree(mptr);
return 0;
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 051/210] ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (49 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 050/210] ALSA: oss: Fix potential deadlock at unregistration Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 052/210] ALSA: usb-audio: Fix potential memory leaks Greg Kroah-Hartman
` (161 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit a70aef7982b012e86dfd39fbb235e76a21ae778a upstream.
The register_mutex taken around the dev_unregister callback call in
snd_rawmidi_free() may potentially lead to a mutex deadlock, when OSS
emulation and a hot unplug are involved.
Since the mutex doesn't protect the actual race (as the registration
itself is already protected by another means), let's drop it.
Link: https://lore.kernel.org/r/CAB7eexJP7w1B0mVgDF0dQ+gWor7UdkiwPczmL7pn91xx8xpzOA@mail.gmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221011070147.7611-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/core/rawmidi.c | 2 --
1 file changed, 2 deletions(-)
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -1633,10 +1633,8 @@ static int snd_rawmidi_free(struct snd_r
snd_info_free_entry(rmidi->proc_entry);
rmidi->proc_entry = NULL;
- mutex_lock(®ister_mutex);
if (rmidi->ops && rmidi->ops->dev_unregister)
rmidi->ops->dev_unregister(rmidi);
- mutex_unlock(®ister_mutex);
snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]);
snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 052/210] ALSA: usb-audio: Fix potential memory leaks
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (50 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 051/210] ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free() Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 053/210] ALSA: usb-audio: Fix NULL dererence at error path Greg Kroah-Hartman
` (160 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 6382da0828995af87aa8b8bef28cc61aceb4aff3 upstream.
When the driver hits -ENOMEM at allocating a URB or a buffer, it
aborts and goes to the error path that releases the all previously
allocated resources. However, when -ENOMEM hits at the middle of the
sync EP URB allocation loop, the partially allocated URBs might be
left without released, because ep->nurbs is still zero at that point.
Fix it by setting ep->nurbs at first, so that the error handler loops
over the full URB list.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220930100151.19461-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/endpoint.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -818,6 +818,7 @@ static int sync_ep_set_params(struct snd
if (!ep->syncbuf)
return -ENOMEM;
+ ep->nurbs = SYNC_URBS;
for (i = 0; i < SYNC_URBS; i++) {
struct snd_urb_ctx *u = &ep->urb[i];
u->index = i;
@@ -837,8 +838,6 @@ static int sync_ep_set_params(struct snd
u->urb->complete = snd_complete_urb;
}
- ep->nurbs = SYNC_URBS;
-
return 0;
out_of_memory:
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 053/210] ALSA: usb-audio: Fix NULL dererence at error path
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (51 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 052/210] ALSA: usb-audio: Fix potential memory leaks Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 054/210] iio: dac: ad5593r: Fix i2c read protocol requirements Greg Kroah-Hartman
` (159 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Sabri N. Ferreiro, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 568be8aaf8a535f79c4db76cabe17b035aa2584d upstream.
At an error path to release URB buffers and contexts, the driver might
hit a NULL dererence for u->urb pointer, when u->buffer_size has been
already set but the actual URB allocation failed.
Fix it by adding the NULL check of urb. Also, make sure that
buffer_size is cleared after the error path or the close.
Cc: <stable@vger.kernel.org>
Reported-by: Sabri N. Ferreiro <snferreiro1@gmail.com>
Link: https://lore.kernel.org/r/CAKG+3NRjTey+fFfUEGwuxL-pi_=T4cUskYG9OzpzHytF+tzYng@mail.gmail.com
Link: https://lore.kernel.org/r/20220930100129.19445-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/endpoint.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -86,12 +86,13 @@ static inline unsigned get_usb_high_spee
*/
static void release_urb_ctx(struct snd_urb_ctx *u)
{
- if (u->buffer_size)
+ if (u->urb && u->buffer_size)
usb_free_coherent(u->ep->chip->dev, u->buffer_size,
u->urb->transfer_buffer,
u->urb->transfer_dma);
usb_free_urb(u->urb);
u->urb = NULL;
+ u->buffer_size = 0;
}
static const char *usb_error_string(int err)
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 054/210] iio: dac: ad5593r: Fix i2c read protocol requirements
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (52 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 053/210] ALSA: usb-audio: Fix NULL dererence at error path Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 055/210] fs: dlm: fix race between test_bit() and queue_work() Greg Kroah-Hartman
` (158 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Hennerich, Nuno Sá,
Stable, Jonathan Cameron
From: Michael Hennerich <michael.hennerich@analog.com>
commit 558a25f903b4af6361b7fbeea08a6446a0745653 upstream.
For reliable operation across the full range of supported
interface rates, the AD5593R needs a STOP condition between
address write, and data read (like show in the datasheet Figure 40)
so in turn i2c_smbus_read_word_swapped cannot be used.
While at it, a simple helper was added to make the code simpler.
Fixes: 56ca9db862bf ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220913073413.140475-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/dac/ad5593r.c | 46 +++++++++++++++++++++++++++-------------------
1 file changed, 27 insertions(+), 19 deletions(-)
--- a/drivers/iio/dac/ad5593r.c
+++ b/drivers/iio/dac/ad5593r.c
@@ -15,6 +15,8 @@
#include <linux/of.h>
#include <linux/acpi.h>
+#include <asm/unaligned.h>
+
#define AD5593R_MODE_CONF (0 << 4)
#define AD5593R_MODE_DAC_WRITE (1 << 4)
#define AD5593R_MODE_ADC_READBACK (4 << 4)
@@ -22,6 +24,24 @@
#define AD5593R_MODE_GPIO_READBACK (6 << 4)
#define AD5593R_MODE_REG_READBACK (7 << 4)
+static int ad5593r_read_word(struct i2c_client *i2c, u8 reg, u16 *value)
+{
+ int ret;
+ u8 buf[2];
+
+ ret = i2c_smbus_write_byte(i2c, reg);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_master_recv(i2c, buf, sizeof(buf));
+ if (ret < 0)
+ return ret;
+
+ *value = get_unaligned_be16(buf);
+
+ return 0;
+}
+
static int ad5593r_write_dac(struct ad5592r_state *st, unsigned chan, u16 value)
{
struct i2c_client *i2c = to_i2c_client(st->dev);
@@ -40,13 +60,7 @@ static int ad5593r_read_adc(struct ad559
if (val < 0)
return (int) val;
- val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_ADC_READBACK);
- if (val < 0)
- return (int) val;
-
- *value = (u16) val;
-
- return 0;
+ return ad5593r_read_word(i2c, AD5593R_MODE_ADC_READBACK, value);
}
static int ad5593r_reg_write(struct ad5592r_state *st, u8 reg, u16 value)
@@ -60,25 +74,19 @@ static int ad5593r_reg_write(struct ad55
static int ad5593r_reg_read(struct ad5592r_state *st, u8 reg, u16 *value)
{
struct i2c_client *i2c = to_i2c_client(st->dev);
- s32 val;
-
- val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_REG_READBACK | reg);
- if (val < 0)
- return (int) val;
- *value = (u16) val;
-
- return 0;
+ return ad5593r_read_word(i2c, AD5593R_MODE_REG_READBACK | reg, value);
}
static int ad5593r_gpio_read(struct ad5592r_state *st, u8 *value)
{
struct i2c_client *i2c = to_i2c_client(st->dev);
- s32 val;
+ u16 val;
+ int ret;
- val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_GPIO_READBACK);
- if (val < 0)
- return (int) val;
+ ret = ad5593r_read_word(i2c, AD5593R_MODE_GPIO_READBACK, &val);
+ if (ret)
+ return ret;
*value = (u8) val;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 055/210] fs: dlm: fix race between test_bit() and queue_work()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (53 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 054/210] iio: dac: ad5593r: Fix i2c read protocol requirements Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 056/210] fs: dlm: handle -EBUSY first in lock arg validation Greg Kroah-Hartman
` (157 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland
From: Alexander Aring <aahringo@redhat.com>
commit eef6ec9bf390e836a6c4029f3620fe49528aa1fe upstream.
This patch fixes a race by using ls_cb_mutex around the bit
operations and conditional code blocks for LSFL_CB_DELAY.
The function dlm_callback_stop() expects to stop all callbacks and
flush all currently queued onces. The set_bit() is not enough because
there can still be queue_work() after the workqueue was flushed.
To avoid queue_work() after set_bit(), surround both by ls_cb_mutex.
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/dlm/ast.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/dlm/ast.c
+++ b/fs/dlm/ast.c
@@ -198,13 +198,13 @@ void dlm_add_cb(struct dlm_lkb *lkb, uin
if (!prev_seq) {
kref_get(&lkb->lkb_ref);
+ mutex_lock(&ls->ls_cb_mutex);
if (test_bit(LSFL_CB_DELAY, &ls->ls_flags)) {
- mutex_lock(&ls->ls_cb_mutex);
list_add(&lkb->lkb_cb_list, &ls->ls_cb_delay);
- mutex_unlock(&ls->ls_cb_mutex);
} else {
queue_work(ls->ls_callback_wq, &lkb->lkb_cb_work);
}
+ mutex_unlock(&ls->ls_cb_mutex);
}
out:
mutex_unlock(&lkb->lkb_cb_mutex);
@@ -284,7 +284,9 @@ void dlm_callback_stop(struct dlm_ls *ls
void dlm_callback_suspend(struct dlm_ls *ls)
{
+ mutex_lock(&ls->ls_cb_mutex);
set_bit(LSFL_CB_DELAY, &ls->ls_flags);
+ mutex_unlock(&ls->ls_cb_mutex);
if (ls->ls_callback_wq)
flush_workqueue(ls->ls_callback_wq);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 056/210] fs: dlm: handle -EBUSY first in lock arg validation
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (54 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 055/210] fs: dlm: fix race between test_bit() and queue_work() Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 057/210] HID: multitouch: Add memory barriers Greg Kroah-Hartman
` (156 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland
From: Alexander Aring <aahringo@redhat.com>
commit 44637ca41d551d409a481117b07fa209b330fca9 upstream.
During lock arg validation, first check for -EBUSY cases, then for
-EINVAL cases. The -EINVAL checks look at lkb state variables
which are not stable when an lkb is busy and would cause an
-EBUSY result, e.g. lkb->lkb_grmode.
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/dlm/lock.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -2887,24 +2887,24 @@ static int set_unlock_args(uint32_t flag
static int validate_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
struct dlm_args *args)
{
- int rv = -EINVAL;
+ int rv = -EBUSY;
if (args->flags & DLM_LKF_CONVERT) {
- if (lkb->lkb_flags & DLM_IFL_MSTCPY)
+ if (lkb->lkb_status != DLM_LKSTS_GRANTED)
goto out;
- if (args->flags & DLM_LKF_QUECVT &&
- !__quecvt_compat_matrix[lkb->lkb_grmode+1][args->mode+1])
+ if (lkb->lkb_wait_type)
goto out;
- rv = -EBUSY;
- if (lkb->lkb_status != DLM_LKSTS_GRANTED)
+ if (is_overlap(lkb))
goto out;
- if (lkb->lkb_wait_type)
+ rv = -EINVAL;
+ if (lkb->lkb_flags & DLM_IFL_MSTCPY)
goto out;
- if (is_overlap(lkb))
+ if (args->flags & DLM_LKF_QUECVT &&
+ !__quecvt_compat_matrix[lkb->lkb_grmode+1][args->mode+1])
goto out;
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 057/210] HID: multitouch: Add memory barriers
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (55 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 056/210] fs: dlm: handle -EBUSY first in lock arg validation Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 058/210] quota: Check next/prev free block number after reading from quota file Greg Kroah-Hartman
` (155 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andri Yngvason, Benjamin Tissoires
From: Andri Yngvason <andri@yngvason.is>
commit be6e2b5734a425941fcdcdbd2a9337be498ce2cf upstream.
This fixes broken atomic checks which cause a race between the
release-timer and processing of hid input.
I noticed that contacts were sometimes sticking, even with the "sticky
fingers" quirk enabled. This fixes that problem.
Cc: stable@vger.kernel.org
Fixes: 9609827458c3 ("HID: multitouch: optimize the sticky fingers timer")
Signed-off-by: Andri Yngvason <andri@yngvason.is>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220907150159.2285460-1-andri@yngvason.is
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hid/hid-multitouch.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -832,7 +832,7 @@ static void mt_touch_report(struct hid_d
int r, n;
/* sticky fingers release in progress, abort */
- if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
+ if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
return;
/*
@@ -888,7 +888,7 @@ static void mt_touch_report(struct hid_d
del_timer(&td->release_timer);
}
- clear_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
+ clear_bit_unlock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
}
static int mt_touch_input_configured(struct hid_device *hdev,
@@ -1271,11 +1271,11 @@ static void mt_expired_timeout(unsigned
* An input report came in just before we release the sticky fingers,
* it will take care of the sticky fingers.
*/
- if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
+ if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
return;
if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
mt_release_contacts(hdev);
- clear_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
+ clear_bit_unlock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
}
static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 058/210] quota: Check next/prev free block number after reading from quota file
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (56 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 057/210] HID: multitouch: Add memory barriers Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 059/210] regulator: qcom_rpm: Fix circular deferral regression Greg Kroah-Hartman
` (154 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Zhihao Cheng, Jan Kara
From: Zhihao Cheng <chengzhihao1@huawei.com>
commit 6c8ea8b8cd4722efd419f91ca46a2dc81b7d89a3 upstream.
Following process:
Init: v2_read_file_info: <3> dqi_free_blk 0 dqi_free_entry 5 dqi_blks 6
Step 1. chown bin f_a -> dquot_acquire -> v2_write_dquot:
qtree_write_dquot
do_insert_tree
find_free_dqentry
get_free_dqblk
write_blk(info->dqi_blocks) // info->dqi_blocks = 6, failure. The
content in physical block (corresponding to blk 6) is random.
Step 2. chown root f_a -> dquot_transfer -> dqput_all -> dqput ->
ext4_release_dquot -> v2_release_dquot -> qtree_delete_dquot:
dquot_release
remove_tree
free_dqentry
put_free_dqblk(6)
info->dqi_free_blk = blk // info->dqi_free_blk = 6
Step 3. drop cache (buffer head for block 6 is released)
Step 4. chown bin f_b -> dquot_acquire -> commit_dqblk -> v2_write_dquot:
qtree_write_dquot
do_insert_tree
find_free_dqentry
get_free_dqblk
dh = (struct qt_disk_dqdbheader *)buf
blk = info->dqi_free_blk // 6
ret = read_blk(info, blk, buf) // The content of buf is random
info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free) // random blk
Step 5. chown bin f_c -> notify_change -> ext4_setattr -> dquot_transfer:
dquot = dqget -> acquire_dquot -> ext4_acquire_dquot -> dquot_acquire ->
commit_dqblk -> v2_write_dquot -> dq_insert_tree:
do_insert_tree
find_free_dqentry
get_free_dqblk
blk = info->dqi_free_blk // If blk < 0 and blk is not an error
code, it will be returned as dquot
transfer_to[USRQUOTA] = dquot // A random negative value
__dquot_transfer(transfer_to)
dquot_add_inodes(transfer_to[cnt])
spin_lock(&dquot->dq_dqb_lock) // page fault
, which will lead to kernel page fault:
Quota error (device sda): qtree_write_dquot: Error -8000 occurred
while creating quota
BUG: unable to handle page fault for address: ffffffffffffe120
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
Oops: 0002 [#1] PREEMPT SMP
CPU: 0 PID: 5974 Comm: chown Not tainted 6.0.0-rc1-00004
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
RIP: 0010:_raw_spin_lock+0x3a/0x90
Call Trace:
dquot_add_inodes+0x28/0x270
__dquot_transfer+0x377/0x840
dquot_transfer+0xde/0x540
ext4_setattr+0x405/0x14d0
notify_change+0x68e/0x9f0
chown_common+0x300/0x430
__x64_sys_fchownat+0x29/0x40
In order to avoid accessing invalid quota memory address, this patch adds
block number checking of next/prev free block read from quota file.
Fetch a reproducer in [Link].
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216372
Fixes: 1da177e4c3f4152 ("Linux-2.6.12-rc2")
CC: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220923134555.2623931-2-chengzhihao1@huawei.com
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/quota/quota_tree.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -79,6 +79,35 @@ static ssize_t write_blk(struct qtree_me
return ret;
}
+static inline int do_check_range(struct super_block *sb, const char *val_name,
+ uint val, uint min_val, uint max_val)
+{
+ if (val < min_val || val > max_val) {
+ quota_error(sb, "Getting %s %u out of range %u-%u",
+ val_name, val, min_val, max_val);
+ return -EUCLEAN;
+ }
+
+ return 0;
+}
+
+static int check_dquot_block_header(struct qtree_mem_dqinfo *info,
+ struct qt_disk_dqdbheader *dh)
+{
+ int err = 0;
+
+ err = do_check_range(info->dqi_sb, "dqdh_next_free",
+ le32_to_cpu(dh->dqdh_next_free), 0,
+ info->dqi_blocks - 1);
+ if (err)
+ return err;
+ err = do_check_range(info->dqi_sb, "dqdh_prev_free",
+ le32_to_cpu(dh->dqdh_prev_free), 0,
+ info->dqi_blocks - 1);
+
+ return err;
+}
+
/* Remove empty block from list and return it */
static int get_free_dqblk(struct qtree_mem_dqinfo *info)
{
@@ -93,6 +122,9 @@ static int get_free_dqblk(struct qtree_m
ret = read_blk(info, blk, buf);
if (ret < 0)
goto out_buf;
+ ret = check_dquot_block_header(info, dh);
+ if (ret)
+ goto out_buf;
info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free);
}
else {
@@ -240,6 +272,9 @@ static uint find_free_dqentry(struct qtr
*err = read_blk(info, blk, buf);
if (*err < 0)
goto out_buf;
+ *err = check_dquot_block_header(info, dh);
+ if (*err)
+ goto out_buf;
} else {
blk = get_free_dqblk(info);
if ((int)blk < 0) {
@@ -432,6 +467,9 @@ static int free_dqentry(struct qtree_mem
goto out_buf;
}
dh = (struct qt_disk_dqdbheader *)buf;
+ ret = check_dquot_block_header(info, dh);
+ if (ret)
+ goto out_buf;
le16_add_cpu(&dh->dqdh_entries, -1);
if (!le16_to_cpu(dh->dqdh_entries)) { /* Block got free? */
ret = remove_free_dqentry(info, buf, blk);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 059/210] regulator: qcom_rpm: Fix circular deferral regression
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (57 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 058/210] quota: Check next/prev free block number after reading from quota file Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 060/210] Revert "fs: check FMODE_LSEEK to control internal pipe splicing" Greg Kroah-Hartman
` (153 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Gross, Bjorn Andersson,
Konrad Dybcio, linux-arm-msm, Linus Walleij, Mark Brown
From: Linus Walleij <linus.walleij@linaro.org>
commit 8478ed5844588703a1a4c96a004b1525fbdbdd5e upstream.
On recent kernels, the PM8058 L16 (or any other PM8058 LDO-regulator)
does not come up if they are supplied by an SMPS-regulator. This
is not very strange since the regulators are registered in a long
array and the L-regulators are registered before the S-regulators,
and if an L-regulator defers, it will never get around to registering
the S-regulator that it needs.
See arch/arm/boot/dts/qcom-apq8060-dragonboard.dts:
pm8058-regulators {
(...)
vdd_l13_l16-supply = <&pm8058_s4>;
(...)
Ooops.
Fix this by moving the PM8058 S-regulators first in the array.
Do the same for the PM8901 S-regulators (though this is currently
not causing any problems with out device trees) so that the pattern
of registration order is the same on all PMnnnn chips.
Fixes: 087a1b5cdd55 ("regulator: qcom: Rework to single platform device")
Cc: stable@vger.kernel.org
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220909112529.239143-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/regulator/qcom_rpm-regulator.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
--- a/drivers/regulator/qcom_rpm-regulator.c
+++ b/drivers/regulator/qcom_rpm-regulator.c
@@ -820,6 +820,12 @@ static const struct rpm_regulator_data r
};
static const struct rpm_regulator_data rpm_pm8058_regulators[] = {
+ { "s0", QCOM_RPM_PM8058_SMPS0, &pm8058_smps, "vdd_s0" },
+ { "s1", QCOM_RPM_PM8058_SMPS1, &pm8058_smps, "vdd_s1" },
+ { "s2", QCOM_RPM_PM8058_SMPS2, &pm8058_smps, "vdd_s2" },
+ { "s3", QCOM_RPM_PM8058_SMPS3, &pm8058_smps, "vdd_s3" },
+ { "s4", QCOM_RPM_PM8058_SMPS4, &pm8058_smps, "vdd_s4" },
+
{ "l0", QCOM_RPM_PM8058_LDO0, &pm8058_nldo, "vdd_l0_l1_lvs" },
{ "l1", QCOM_RPM_PM8058_LDO1, &pm8058_nldo, "vdd_l0_l1_lvs" },
{ "l2", QCOM_RPM_PM8058_LDO2, &pm8058_pldo, "vdd_l2_l11_l12" },
@@ -847,12 +853,6 @@ static const struct rpm_regulator_data r
{ "l24", QCOM_RPM_PM8058_LDO24, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "l25", QCOM_RPM_PM8058_LDO25, &pm8058_nldo, "vdd_l23_l24_l25" },
- { "s0", QCOM_RPM_PM8058_SMPS0, &pm8058_smps, "vdd_s0" },
- { "s1", QCOM_RPM_PM8058_SMPS1, &pm8058_smps, "vdd_s1" },
- { "s2", QCOM_RPM_PM8058_SMPS2, &pm8058_smps, "vdd_s2" },
- { "s3", QCOM_RPM_PM8058_SMPS3, &pm8058_smps, "vdd_s3" },
- { "s4", QCOM_RPM_PM8058_SMPS4, &pm8058_smps, "vdd_s4" },
-
{ "lvs0", QCOM_RPM_PM8058_LVS0, &pm8058_switch, "vdd_l0_l1_lvs" },
{ "lvs1", QCOM_RPM_PM8058_LVS1, &pm8058_switch, "vdd_l0_l1_lvs" },
@@ -861,6 +861,12 @@ static const struct rpm_regulator_data r
};
static const struct rpm_regulator_data rpm_pm8901_regulators[] = {
+ { "s0", QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
+ { "s1", QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
+ { "s2", QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
+ { "s3", QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
+ { "s4", QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
+
{ "l0", QCOM_RPM_PM8901_LDO0, &pm8901_nldo, "vdd_l0" },
{ "l1", QCOM_RPM_PM8901_LDO1, &pm8901_pldo, "vdd_l1" },
{ "l2", QCOM_RPM_PM8901_LDO2, &pm8901_pldo, "vdd_l2" },
@@ -869,12 +875,6 @@ static const struct rpm_regulator_data r
{ "l5", QCOM_RPM_PM8901_LDO5, &pm8901_pldo, "vdd_l5" },
{ "l6", QCOM_RPM_PM8901_LDO6, &pm8901_pldo, "vdd_l6" },
- { "s0", QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
- { "s1", QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
- { "s2", QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
- { "s3", QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
- { "s4", QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
-
{ "lvs0", QCOM_RPM_PM8901_LVS0, &pm8901_switch, "lvs0_in" },
{ "lvs1", QCOM_RPM_PM8901_LVS1, &pm8901_switch, "lvs1_in" },
{ "lvs2", QCOM_RPM_PM8901_LVS2, &pm8901_switch, "lvs2_in" },
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 060/210] Revert "fs: check FMODE_LSEEK to control internal pipe splicing"
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (58 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 059/210] regulator: qcom_rpm: Fix circular deferral regression Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 061/210] parisc: fbdev/stifb: Align graphics memory size to 4MB Greg Kroah-Hartman
` (152 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Saeed Mirzamohammadi, Sasha Levin
This reverts commit fd0a6e99b61e6c08fa5cf585d54fd956f70c73a6.
Which was upstream commit 97ef77c52b789ec1411d360ed99dca1efe4b2c81.
The commit is missing dependencies and breaks NFS tests, remove it for
now.
Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/splice.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -898,15 +898,17 @@ ssize_t splice_direct_to_actor(struct fi
{
struct pipe_inode_info *pipe;
long ret, bytes;
+ umode_t i_mode;
size_t len;
int i, flags, more;
/*
- * We require the input to be seekable, as we don't want to randomly
- * drop data for eg socket -> socket splicing. Use the piped splicing
- * for that!
+ * We require the input being a regular file, as we don't want to
+ * randomly drop data for eg socket -> socket splicing. Use the
+ * piped splicing for that!
*/
- if (unlikely(!(in->f_mode & FMODE_LSEEK)))
+ i_mode = file_inode(in)->i_mode;
+ if (unlikely(!S_ISREG(i_mode) && !S_ISBLK(i_mode)))
return -EINVAL;
/*
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 061/210] parisc: fbdev/stifb: Align graphics memory size to 4MB
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (59 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 060/210] Revert "fs: check FMODE_LSEEK to control internal pipe splicing" Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 062/210] UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Greg Kroah-Hartman
` (151 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Helge Deller
From: Helge Deller <deller@gmx.de>
commit aca7c13d3bee81a968337a5515411409ae9d095d upstream.
Independend of the current graphics resolution, adjust the reported
graphics card memory size to the next 4MB boundary.
This fixes the fbtest program which expects a naturally aligned size.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/video/fbdev/stifb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1259,7 +1259,7 @@ static int __init stifb_init_fb(struct s
/* limit fbsize to max visible screen size */
if (fix->smem_len > yres*fix->line_length)
- fix->smem_len = yres*fix->line_length;
+ fix->smem_len = ALIGN(yres*fix->line_length, 4*1024*1024);
fix->accel = FB_ACCEL_NONE;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 062/210] UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (60 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 061/210] parisc: fbdev/stifb: Align graphics memory size to 4MB Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 063/210] PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge Greg Kroah-Hartman
` (150 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Huacai Chen, Richard Weinberger
From: Huacai Chen <chenhuacai@loongson.cn>
commit 16c546e148fa6d14a019431436a6f7b4087dbccd upstream.
When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected,
cpu_max_bits_warn() generates a runtime warning similar as below while
we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)
instead of NR_CPUS to iterate CPUs.
[ 3.052463] ------------[ cut here ]------------
[ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0
[ 3.070072] Modules linked in: efivarfs autofs4
[ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052
[ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000
[ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430
[ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff
[ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890
[ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa
[ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000
[ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000
[ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000
[ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286
[ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c
[ 3.195868] ...
[ 3.199917] Call Trace:
[ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c
[ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88
[ 3.217625] [<900000000023d268>] __warn+0xd0/0x100
[ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc
[ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0
[ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4
[ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4
[ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0
[ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100
[ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94
[ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160
[ 3.281824] ---[ end trace 8b484262b4b8c24c ]---
Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/um/kernel/um_arch.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -77,7 +77,7 @@ static int show_cpuinfo(struct seq_file
static void *c_start(struct seq_file *m, loff_t *pos)
{
- return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+ return *pos < nr_cpu_ids ? cpu_data + *pos : NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 063/210] PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (61 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 062/210] UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 064/210] fbdev: smscufx: Fix use-after-free in ufx_ops_open() Greg Kroah-Hartman
` (149 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Maciej W. Rozycki, Bjorn Helgaas
From: Maciej W. Rozycki <macro@orcam.me.uk>
commit 0e32818397426a688f598f35d3bc762eca6d7592 upstream.
When pci_assign_resource() is unable to assign resources to a BAR, it uses
pci_revert_fw_address() to fall back to a firmware assignment (if any).
Previously pci_revert_fw_address() assumed all addresses could reach the
device, but this is not true if the device is below a bridge that only
forwards addresses within its windows.
This problem was observed on a Tyan Tomcat IV S1564D system where the BIOS
did not assign valid addresses to several bridges and USB devices:
pci 0000:00:11.0: PCI-to-PCIe bridge to [bus 01-ff]
pci 0000:00:11.0: bridge window [io 0xe000-0xefff]
pci 0000:01:00.0: PCIe Upstream Port to [bus 02-ff]
pci 0000:01:00.0: bridge window [io 0x0000-0x0fff] # unreachable
pci 0000:02:02.0: PCIe Downstream Port to [bus 05-ff]
pci 0000:02:02.0: bridge window [io 0x0000-0x0fff] # unreachable
pci 0000:05:00.0: PCIe-to-PCI bridge to [bus 06-ff]
pci 0000:05:00.0: bridge window [io 0x0000-0x0fff] # unreachable
pci 0000:06:08.0: USB UHCI 1.1
pci 0000:06:08.0: BAR 4: [io 0xfce0-0xfcff] # unreachable
pci 0000:06:08.1: USB UHCI 1.1
pci 0000:06:08.1: BAR 4: [io 0xfce0-0xfcff] # unreachable
pci 0000:06:08.0: can't claim BAR 4 [io 0xfce0-0xfcff]: no compatible bridge window
pci 0000:06:08.1: can't claim BAR 4 [io 0xfce0-0xfcff]: no compatible bridge window
During the first pass of assigning unassigned resources, there was not
enough I/O space available, so we couldn't assign the 06:08.0 BAR and
reverted to the firmware assignment (still unreachable). Reverting the
06:08.1 assignment failed because it conflicted with 06:08.0:
pci 0000:00:11.0: bridge window [io 0xe000-0xefff]
pci 0000:01:00.0: no space for bridge window [io size 0x2000]
pci 0000:02:02.0: no space for bridge window [io size 0x1000]
pci 0000:05:00.0: no space for bridge window [io size 0x1000]
pci 0000:06:08.0: BAR 4: no space for [io size 0x0020]
pci 0000:06:08.0: BAR 4: trying firmware assignment [io 0xfce0-0xfcff]
pci 0000:06:08.1: BAR 4: no space for [io size 0x0020]
pci 0000:06:08.1: BAR 4: trying firmware assignment [io 0xfce0-0xfcff]
pci 0000:06:08.1: BAR 4: [io 0xfce0-0xfcff] conflicts with 0000:06:08.0 [io 0xfce0-0xfcff]
A subsequent pass assigned valid bridge windows and a valid 06:08.1 BAR,
but left the 06:08.0 BAR alone, so the UHCI device was still unusable:
pci 0000:00:11.0: bridge window [io 0xe000-0xefff] released
pci 0000:00:11.0: bridge window [io 0x1000-0x2fff] # reassigned
pci 0000:01:00.0: bridge window [io 0x1000-0x2fff] # reassigned
pci 0000:02:02.0: bridge window [io 0x2000-0x2fff] # reassigned
pci 0000:05:00.0: bridge window [io 0x2000-0x2fff] # reassigned
pci 0000:06:08.0: BAR 4: assigned [io 0xfce0-0xfcff] # left alone
pci 0000:06:08.1: BAR 4: assigned [io 0x2000-0x201f]
...
uhci_hcd 0000:06:08.0: host system error, PCI problems?
uhci_hcd 0000:06:08.0: host controller process error, something bad happened!
uhci_hcd 0000:06:08.0: host controller halted, very bad!
uhci_hcd 0000:06:08.0: HCRESET not completed yet!
uhci_hcd 0000:06:08.0: HC died; cleaning up
If the address assigned by firmware is not reachable because it's not
within upstream bridge windows, fail instead of assigning the unusable
address from firmware.
[bhelgaas: commit log, use pci_upstream_bridge()]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=16263
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2203012338460.46819@angie.orcam.me.uk
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2209211921250.29493@angie.orcam.me.uk
Fixes: 58c84eda0756 ("PCI: fall back to original BIOS BAR addresses")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v2.6.35+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/pci/setup-res.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -215,6 +215,17 @@ static int pci_revert_fw_address(struct
root = pci_find_parent_resource(dev, res);
if (!root) {
+ /*
+ * If dev is behind a bridge, accesses will only reach it
+ * if res is inside the relevant bridge window.
+ */
+ if (pci_upstream_bridge(dev))
+ return -ENXIO;
+
+ /*
+ * On the root bus, assume the host bridge will forward
+ * everything.
+ */
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
else
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 064/210] fbdev: smscufx: Fix use-after-free in ufx_ops_open()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (62 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 063/210] PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 065/210] nilfs2: fix use-after-free bug of struct nilfs_root Greg Kroah-Hartman
` (148 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hyunwoo Kim, Helge Deller
From: Hyunwoo Kim <imv4bel@gmail.com>
commit 5610bcfe8693c02e2e4c8b31427f1bdbdecc839c upstream.
A race condition may occur if the user physically removes the
USB device while calling open() for this device node.
This is a race condition between the ufx_ops_open() function and
the ufx_usb_disconnect() function, which may eventually result in UAF.
So, add a mutex to the ufx_ops_open() and ufx_usb_disconnect() functions
to avoid race contidion of krefs.
Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/video/fbdev/smscufx.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -140,6 +140,8 @@ static int ufx_submit_urb(struct ufx_dat
static int ufx_alloc_urb_list(struct ufx_data *dev, int count, size_t size);
static void ufx_free_urb_list(struct ufx_data *dev);
+static DEFINE_MUTEX(disconnect_mutex);
+
/* reads a control register */
static int ufx_reg_read(struct ufx_data *dev, u32 index, u32 *data)
{
@@ -1073,9 +1075,13 @@ static int ufx_ops_open(struct fb_info *
if (user == 0 && !console)
return -EBUSY;
+ mutex_lock(&disconnect_mutex);
+
/* If the USB device is gone, we don't accept new opens */
- if (dev->virtualized)
+ if (dev->virtualized) {
+ mutex_unlock(&disconnect_mutex);
return -ENODEV;
+ }
dev->fb_count++;
@@ -1100,6 +1106,8 @@ static int ufx_ops_open(struct fb_info *
pr_debug("open /dev/fb%d user=%d fb_info=%p count=%d",
info->node, user, info, dev->fb_count);
+ mutex_unlock(&disconnect_mutex);
+
return 0;
}
@@ -1762,6 +1770,8 @@ static void ufx_usb_disconnect(struct us
{
struct ufx_data *dev;
+ mutex_lock(&disconnect_mutex);
+
dev = usb_get_intfdata(interface);
pr_debug("USB disconnect starting\n");
@@ -1782,6 +1792,8 @@ static void ufx_usb_disconnect(struct us
kref_put(&dev->kref, ufx_free);
/* consider ufx_data freed */
+
+ mutex_unlock(&disconnect_mutex);
}
static struct usb_driver ufx_driver = {
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 065/210] nilfs2: fix use-after-free bug of struct nilfs_root
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (63 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 064/210] fbdev: smscufx: Fix use-after-free in ufx_ops_open() Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 066/210] nilfs2: fix lockdep warnings in page operations for btree nodes Greg Kroah-Hartman
` (147 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ryusuke Konishi,
syzbot+b8c672b0e22615c80fe0, Khalid Masum, Andrew Morton
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
commit d325dc6eb763c10f591c239550b8c7e5466a5d09 upstream.
If the beginning of the inode bitmap area is corrupted on disk, an inode
with the same inode number as the root inode can be allocated and fail
soon after. In this case, the subsequent call to nilfs_clear_inode() on
that bogus root inode will wrongly decrement the reference counter of
struct nilfs_root, and this will erroneously free struct nilfs_root,
causing kernel oopses.
This fixes the problem by changing nilfs_new_inode() to skip reserved
inode numbers while repairing the inode bitmap.
Link: https://lkml.kernel.org/r/20221003150519.39789-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+b8c672b0e22615c80fe0@syzkaller.appspotmail.com
Reported-by: Khalid Masum <khalid.masum.92@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/inode.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -344,6 +344,7 @@ struct inode *nilfs_new_inode(struct ino
struct inode *inode;
struct nilfs_inode_info *ii;
struct nilfs_root *root;
+ struct buffer_head *bh;
int err = -ENOMEM;
ino_t ino;
@@ -359,11 +360,26 @@ struct inode *nilfs_new_inode(struct ino
ii->i_state = BIT(NILFS_I_NEW);
ii->i_root = root;
- err = nilfs_ifile_create_inode(root->ifile, &ino, &ii->i_bh);
+ err = nilfs_ifile_create_inode(root->ifile, &ino, &bh);
if (unlikely(err))
goto failed_ifile_create_inode;
/* reference count of i_bh inherits from nilfs_mdt_read_block() */
+ if (unlikely(ino < NILFS_USER_INO)) {
+ nilfs_msg(sb, KERN_WARNING,
+ "inode bitmap is inconsistent for reserved inodes");
+ do {
+ brelse(bh);
+ err = nilfs_ifile_create_inode(root->ifile, &ino, &bh);
+ if (unlikely(err))
+ goto failed_ifile_create_inode;
+ } while (ino < NILFS_USER_INO);
+
+ nilfs_msg(sb, KERN_INFO,
+ "repaired inode bitmap for reserved inodes");
+ }
+ ii->i_bh = bh;
+
atomic64_inc(&root->inodes_count);
inode_init_owner(inode, dir, mode);
inode->i_ino = ino;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 066/210] nilfs2: fix lockdep warnings in page operations for btree nodes
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (64 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 065/210] nilfs2: fix use-after-free bug of struct nilfs_root Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 067/210] nilfs2: fix lockdep warnings during disk space reclamation Greg Kroah-Hartman
` (146 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ryusuke Konishi,
syzbot+0d5b462a6f07447991b3, syzbot+34ef28bb2aeb28724aa0,
Hao Sun, David Hildenbrand, Matthew Wilcox, Andrew Morton,
Linus Torvalds
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
commit e897be17a441fa637cd166fc3de1445131e57692 upstream.
Patch series "nilfs2 lockdep warning fixes".
The first two are to resolve the lockdep warning issue, and the last one
is the accompanying cleanup and low priority.
Based on your comment, this series solves the issue by separating inode
object as needed. Since I was worried about the impact of the object
composition changes, I tested the series carefully not to cause
regressions especially for delicate functions such like disk space
reclamation and snapshots.
This patch (of 3):
If CONFIG_LOCKDEP is enabled, nilfs2 hits lockdep warnings at
inode_to_wb() during page/folio operations for btree nodes:
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 inode_to_wb include/linux/backing-dev.h:269 [inline]
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 folio_account_dirtied mm/page-writeback.c:2460 [inline]
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 __folio_mark_dirty+0xa7c/0xe30 mm/page-writeback.c:2509
Modules linked in:
...
RIP: 0010:inode_to_wb include/linux/backing-dev.h:269 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2460 [inline]
RIP: 0010:__folio_mark_dirty+0xa7c/0xe30 mm/page-writeback.c:2509
...
Call Trace:
__set_page_dirty include/linux/pagemap.h:834 [inline]
mark_buffer_dirty+0x4e6/0x650 fs/buffer.c:1145
nilfs_btree_propagate_p fs/nilfs2/btree.c:1889 [inline]
nilfs_btree_propagate+0x4ae/0xea0 fs/nilfs2/btree.c:2085
nilfs_bmap_propagate+0x73/0x170 fs/nilfs2/bmap.c:337
nilfs_collect_dat_data+0x45/0xd0 fs/nilfs2/segment.c:625
nilfs_segctor_apply_buffers+0x14a/0x470 fs/nilfs2/segment.c:1009
nilfs_segctor_scan_file+0x47a/0x700 fs/nilfs2/segment.c:1048
nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1224 [inline]
nilfs_segctor_collect fs/nilfs2/segment.c:1494 [inline]
nilfs_segctor_do_construct+0x14f3/0x6c60 fs/nilfs2/segment.c:2036
nilfs_segctor_construct+0x7a7/0xb30 fs/nilfs2/segment.c:2372
nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline]
nilfs_segctor_thread+0x3c3/0xf90 fs/nilfs2/segment.c:2563
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
This is because nilfs2 uses two page caches for each inode and
inode->i_mapping never points to one of them, the btree node cache.
This causes inode_to_wb(inode) to refer to a different page cache than
the caller page/folio operations such like __folio_start_writeback(),
__folio_end_writeback(), or __folio_mark_dirty() acquired the lock.
This patch resolves the issue by allocating and using an additional
inode to hold the page cache of btree nodes. The inode is attached
one-to-one to the traditional nilfs2 inode if it requires a block
mapping with b-tree. This setup change is in memory only and does not
affect the disk format.
Link: https://lkml.kernel.org/r/1647867427-30498-1-git-send-email-konishi.ryusuke@gmail.com
Link: https://lkml.kernel.org/r/1647867427-30498-2-git-send-email-konishi.ryusuke@gmail.com
Link: https://lore.kernel.org/r/YXrYvIo8YRnAOJCj@casper.infradead.org
Link: https://lore.kernel.org/r/9a20b33d-b38f-b4a2-4742-c1eb5b8e4d6c@redhat.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+0d5b462a6f07447991b3@syzkaller.appspotmail.com
Reported-by: syzbot+34ef28bb2aeb28724aa0@syzkaller.appspotmail.com
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: David Hildenbrand <david@redhat.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/btnode.c | 23 ++++++++++-
fs/nilfs2/btnode.h | 1
fs/nilfs2/btree.c | 27 +++++++++----
fs/nilfs2/gcinode.c | 7 ++-
fs/nilfs2/inode.c | 104 +++++++++++++++++++++++++++++++++++++++++++++-------
fs/nilfs2/mdt.c | 7 ++-
fs/nilfs2/nilfs.h | 14 ++-----
fs/nilfs2/page.c | 7 +--
fs/nilfs2/segment.c | 11 +++--
fs/nilfs2/super.c | 5 +-
10 files changed, 155 insertions(+), 51 deletions(-)
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -29,6 +29,23 @@
#include "page.h"
#include "btnode.h"
+
+/**
+ * nilfs_init_btnc_inode - initialize B-tree node cache inode
+ * @btnc_inode: inode to be initialized
+ *
+ * nilfs_init_btnc_inode() sets up an inode for B-tree node cache.
+ */
+void nilfs_init_btnc_inode(struct inode *btnc_inode)
+{
+ struct nilfs_inode_info *ii = NILFS_I(btnc_inode);
+
+ btnc_inode->i_mode = S_IFREG;
+ ii->i_flags = 0;
+ memset(&ii->i_bmap_data, 0, sizeof(struct nilfs_bmap));
+ mapping_set_gfp_mask(btnc_inode->i_mapping, GFP_NOFS);
+}
+
void nilfs_btnode_cache_clear(struct address_space *btnc)
{
invalidate_mapping_pages(btnc, 0, -1);
@@ -38,7 +55,7 @@ void nilfs_btnode_cache_clear(struct add
struct buffer_head *
nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
{
- struct inode *inode = NILFS_BTNC_I(btnc);
+ struct inode *inode = btnc->host;
struct buffer_head *bh;
bh = nilfs_grab_buffer(inode, btnc, blocknr, BIT(BH_NILFS_Node));
@@ -66,7 +83,7 @@ int nilfs_btnode_submit_block(struct add
struct buffer_head **pbh, sector_t *submit_ptr)
{
struct buffer_head *bh;
- struct inode *inode = NILFS_BTNC_I(btnc);
+ struct inode *inode = btnc->host;
struct page *page;
int err;
@@ -166,7 +183,7 @@ int nilfs_btnode_prepare_change_key(stru
struct nilfs_btnode_chkey_ctxt *ctxt)
{
struct buffer_head *obh, *nbh;
- struct inode *inode = NILFS_BTNC_I(btnc);
+ struct inode *inode = btnc->host;
__u64 oldkey = ctxt->oldkey, newkey = ctxt->newkey;
int err;
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -39,6 +39,7 @@ struct nilfs_btnode_chkey_ctxt {
struct buffer_head *newbh;
};
+void nilfs_init_btnc_inode(struct inode *btnc_inode);
void nilfs_btnode_cache_clear(struct address_space *);
struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
__u64 blocknr);
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -67,7 +67,8 @@ static void nilfs_btree_free_path(struct
static int nilfs_btree_get_new_block(const struct nilfs_bmap *btree,
__u64 ptr, struct buffer_head **bhp)
{
- struct address_space *btnc = &NILFS_BMAP_I(btree)->i_btnode_cache;
+ struct inode *btnc_inode = NILFS_BMAP_I(btree)->i_assoc_inode;
+ struct address_space *btnc = btnc_inode->i_mapping;
struct buffer_head *bh;
bh = nilfs_btnode_create_block(btnc, ptr);
@@ -479,7 +480,8 @@ static int __nilfs_btree_get_block(const
struct buffer_head **bhp,
const struct nilfs_btree_readahead_info *ra)
{
- struct address_space *btnc = &NILFS_BMAP_I(btree)->i_btnode_cache;
+ struct inode *btnc_inode = NILFS_BMAP_I(btree)->i_assoc_inode;
+ struct address_space *btnc = btnc_inode->i_mapping;
struct buffer_head *bh, *ra_bh;
sector_t submit_ptr = 0;
int ret;
@@ -1751,6 +1753,10 @@ nilfs_btree_prepare_convert_and_insert(s
dat = nilfs_bmap_get_dat(btree);
}
+ ret = nilfs_attach_btree_node_cache(&NILFS_BMAP_I(btree)->vfs_inode);
+ if (ret < 0)
+ return ret;
+
ret = nilfs_bmap_prepare_alloc_ptr(btree, dreq, dat);
if (ret < 0)
return ret;
@@ -1923,7 +1929,7 @@ static int nilfs_btree_prepare_update_v(
path[level].bp_ctxt.newkey = path[level].bp_newreq.bpr_ptr;
path[level].bp_ctxt.bh = path[level].bp_bh;
ret = nilfs_btnode_prepare_change_key(
- &NILFS_BMAP_I(btree)->i_btnode_cache,
+ NILFS_BMAP_I(btree)->i_assoc_inode->i_mapping,
&path[level].bp_ctxt);
if (ret < 0) {
nilfs_dat_abort_update(dat,
@@ -1949,7 +1955,7 @@ static void nilfs_btree_commit_update_v(
if (buffer_nilfs_node(path[level].bp_bh)) {
nilfs_btnode_commit_change_key(
- &NILFS_BMAP_I(btree)->i_btnode_cache,
+ NILFS_BMAP_I(btree)->i_assoc_inode->i_mapping,
&path[level].bp_ctxt);
path[level].bp_bh = path[level].bp_ctxt.bh;
}
@@ -1968,7 +1974,7 @@ static void nilfs_btree_abort_update_v(s
&path[level].bp_newreq.bpr_req);
if (buffer_nilfs_node(path[level].bp_bh))
nilfs_btnode_abort_change_key(
- &NILFS_BMAP_I(btree)->i_btnode_cache,
+ NILFS_BMAP_I(btree)->i_assoc_inode->i_mapping,
&path[level].bp_ctxt);
}
@@ -2144,7 +2150,8 @@ static void nilfs_btree_add_dirty_buffer
static void nilfs_btree_lookup_dirty_buffers(struct nilfs_bmap *btree,
struct list_head *listp)
{
- struct address_space *btcache = &NILFS_BMAP_I(btree)->i_btnode_cache;
+ struct inode *btnc_inode = NILFS_BMAP_I(btree)->i_assoc_inode;
+ struct address_space *btcache = btnc_inode->i_mapping;
struct list_head lists[NILFS_BTREE_LEVEL_MAX];
struct pagevec pvec;
struct buffer_head *bh, *head;
@@ -2198,12 +2205,12 @@ static int nilfs_btree_assign_p(struct n
path[level].bp_ctxt.newkey = blocknr;
path[level].bp_ctxt.bh = *bh;
ret = nilfs_btnode_prepare_change_key(
- &NILFS_BMAP_I(btree)->i_btnode_cache,
+ NILFS_BMAP_I(btree)->i_assoc_inode->i_mapping,
&path[level].bp_ctxt);
if (ret < 0)
return ret;
nilfs_btnode_commit_change_key(
- &NILFS_BMAP_I(btree)->i_btnode_cache,
+ NILFS_BMAP_I(btree)->i_assoc_inode->i_mapping,
&path[level].bp_ctxt);
*bh = path[level].bp_ctxt.bh;
}
@@ -2408,6 +2415,10 @@ int nilfs_btree_init(struct nilfs_bmap *
if (nilfs_btree_root_broken(nilfs_btree_get_root(bmap), bmap->b_inode))
ret = -EIO;
+ else
+ ret = nilfs_attach_btree_node_cache(
+ &NILFS_BMAP_I(bmap)->vfs_inode);
+
return ret;
}
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -135,9 +135,10 @@ int nilfs_gccache_submit_read_data(struc
int nilfs_gccache_submit_read_node(struct inode *inode, sector_t pbn,
__u64 vbn, struct buffer_head **out_bh)
{
+ struct inode *btnc_inode = NILFS_I(inode)->i_assoc_inode;
int ret;
- ret = nilfs_btnode_submit_block(&NILFS_I(inode)->i_btnode_cache,
+ ret = nilfs_btnode_submit_block(btnc_inode->i_mapping,
vbn ? : pbn, pbn, REQ_OP_READ, 0,
out_bh, &pbn);
if (ret == -EEXIST) /* internal code (cache hit) */
@@ -179,7 +180,7 @@ int nilfs_init_gcinode(struct inode *ino
ii->i_flags = 0;
nilfs_bmap_init_gc(ii->i_bmap);
- return 0;
+ return nilfs_attach_btree_node_cache(inode);
}
/**
@@ -194,7 +195,7 @@ void nilfs_remove_all_gcinodes(struct th
ii = list_first_entry(head, struct nilfs_inode_info, i_dirty);
list_del_init(&ii->i_dirty);
truncate_inode_pages(&ii->vfs_inode.i_data, 0);
- nilfs_btnode_cache_clear(&ii->i_btnode_cache);
+ nilfs_btnode_cache_clear(ii->i_assoc_inode->i_mapping);
iput(&ii->vfs_inode);
}
}
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -37,12 +37,14 @@
* @cno: checkpoint number
* @root: pointer on NILFS root object (mounted checkpoint)
* @for_gc: inode for GC flag
+ * @for_btnc: inode for B-tree node cache flag
*/
struct nilfs_iget_args {
u64 ino;
__u64 cno;
struct nilfs_root *root;
- int for_gc;
+ bool for_gc;
+ bool for_btnc;
};
static int nilfs_iget_test(struct inode *inode, void *opaque);
@@ -331,7 +333,8 @@ static int nilfs_insert_inode_locked(str
unsigned long ino)
{
struct nilfs_iget_args args = {
- .ino = ino, .root = root, .cno = 0, .for_gc = 0
+ .ino = ino, .root = root, .cno = 0, .for_gc = false,
+ .for_btnc = false
};
return insert_inode_locked4(inode, ino, nilfs_iget_test, &args);
@@ -561,6 +564,13 @@ static int nilfs_iget_test(struct inode
return 0;
ii = NILFS_I(inode);
+ if (test_bit(NILFS_I_BTNC, &ii->i_state)) {
+ if (!args->for_btnc)
+ return 0;
+ } else if (args->for_btnc) {
+ return 0;
+ }
+
if (!test_bit(NILFS_I_GCINODE, &ii->i_state))
return !args->for_gc;
@@ -572,15 +582,15 @@ static int nilfs_iget_set(struct inode *
struct nilfs_iget_args *args = opaque;
inode->i_ino = args->ino;
- if (args->for_gc) {
+ NILFS_I(inode)->i_cno = args->cno;
+ NILFS_I(inode)->i_root = args->root;
+ if (args->root && args->ino == NILFS_ROOT_INO)
+ nilfs_get_root(args->root);
+
+ if (args->for_gc)
NILFS_I(inode)->i_state = BIT(NILFS_I_GCINODE);
- NILFS_I(inode)->i_cno = args->cno;
- NILFS_I(inode)->i_root = NULL;
- } else {
- if (args->root && args->ino == NILFS_ROOT_INO)
- nilfs_get_root(args->root);
- NILFS_I(inode)->i_root = args->root;
- }
+ if (args->for_btnc)
+ NILFS_I(inode)->i_state |= BIT(NILFS_I_BTNC);
return 0;
}
@@ -588,7 +598,8 @@ struct inode *nilfs_ilookup(struct super
unsigned long ino)
{
struct nilfs_iget_args args = {
- .ino = ino, .root = root, .cno = 0, .for_gc = 0
+ .ino = ino, .root = root, .cno = 0, .for_gc = false,
+ .for_btnc = false
};
return ilookup5(sb, ino, nilfs_iget_test, &args);
@@ -598,7 +609,8 @@ struct inode *nilfs_iget_locked(struct s
unsigned long ino)
{
struct nilfs_iget_args args = {
- .ino = ino, .root = root, .cno = 0, .for_gc = 0
+ .ino = ino, .root = root, .cno = 0, .for_gc = false,
+ .for_btnc = false
};
return iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args);
@@ -629,7 +641,8 @@ struct inode *nilfs_iget_for_gc(struct s
__u64 cno)
{
struct nilfs_iget_args args = {
- .ino = ino, .root = NULL, .cno = cno, .for_gc = 1
+ .ino = ino, .root = NULL, .cno = cno, .for_gc = true,
+ .for_btnc = false
};
struct inode *inode;
int err;
@@ -649,6 +662,68 @@ struct inode *nilfs_iget_for_gc(struct s
return inode;
}
+/**
+ * nilfs_attach_btree_node_cache - attach a B-tree node cache to the inode
+ * @inode: inode object
+ *
+ * nilfs_attach_btree_node_cache() attaches a B-tree node cache to @inode,
+ * or does nothing if the inode already has it. This function allocates
+ * an additional inode to maintain page cache of B-tree nodes one-on-one.
+ *
+ * Return Value: On success, 0 is returned. On errors, one of the following
+ * negative error code is returned.
+ *
+ * %-ENOMEM - Insufficient memory available.
+ */
+int nilfs_attach_btree_node_cache(struct inode *inode)
+{
+ struct nilfs_inode_info *ii = NILFS_I(inode);
+ struct inode *btnc_inode;
+ struct nilfs_iget_args args;
+
+ if (ii->i_assoc_inode)
+ return 0;
+
+ args.ino = inode->i_ino;
+ args.root = ii->i_root;
+ args.cno = ii->i_cno;
+ args.for_gc = test_bit(NILFS_I_GCINODE, &ii->i_state) != 0;
+ args.for_btnc = true;
+
+ btnc_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
+ nilfs_iget_set, &args);
+ if (unlikely(!btnc_inode))
+ return -ENOMEM;
+ if (btnc_inode->i_state & I_NEW) {
+ nilfs_init_btnc_inode(btnc_inode);
+ unlock_new_inode(btnc_inode);
+ }
+ NILFS_I(btnc_inode)->i_assoc_inode = inode;
+ NILFS_I(btnc_inode)->i_bmap = ii->i_bmap;
+ ii->i_assoc_inode = btnc_inode;
+
+ return 0;
+}
+
+/**
+ * nilfs_detach_btree_node_cache - detach the B-tree node cache from the inode
+ * @inode: inode object
+ *
+ * nilfs_detach_btree_node_cache() detaches the B-tree node cache and its
+ * holder inode bound to @inode, or does nothing if @inode doesn't have it.
+ */
+void nilfs_detach_btree_node_cache(struct inode *inode)
+{
+ struct nilfs_inode_info *ii = NILFS_I(inode);
+ struct inode *btnc_inode = ii->i_assoc_inode;
+
+ if (btnc_inode) {
+ NILFS_I(btnc_inode)->i_assoc_inode = NULL;
+ ii->i_assoc_inode = NULL;
+ iput(btnc_inode);
+ }
+}
+
void nilfs_write_inode_common(struct inode *inode,
struct nilfs_inode *raw_inode, int has_bmap)
{
@@ -797,7 +872,8 @@ static void nilfs_clear_inode(struct ino
if (test_bit(NILFS_I_BMAP, &ii->i_state))
nilfs_bmap_clear(ii->i_bmap);
- nilfs_btnode_cache_clear(&ii->i_btnode_cache);
+ if (!test_bit(NILFS_I_BTNC, &ii->i_state))
+ nilfs_detach_btree_node_cache(inode);
if (ii->i_root && inode->i_ino == NILFS_ROOT_INO)
nilfs_put_root(ii->i_root);
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -540,7 +540,7 @@ int nilfs_mdt_save_to_shadow_map(struct
goto out;
ret = nilfs_copy_dirty_pages(&shadow->frozen_btnodes,
- &ii->i_btnode_cache);
+ ii->i_assoc_inode->i_mapping);
if (ret)
goto out;
@@ -631,8 +631,9 @@ void nilfs_mdt_restore_from_shadow_map(s
nilfs_clear_dirty_pages(inode->i_mapping, true);
nilfs_copy_back_pages(inode->i_mapping, &shadow->frozen_data);
- nilfs_clear_dirty_pages(&ii->i_btnode_cache, true);
- nilfs_copy_back_pages(&ii->i_btnode_cache, &shadow->frozen_btnodes);
+ nilfs_clear_dirty_pages(ii->i_assoc_inode->i_mapping, true);
+ nilfs_copy_back_pages(ii->i_assoc_inode->i_mapping,
+ &shadow->frozen_btnodes);
nilfs_bmap_restore(ii->i_bmap, &shadow->bmap_store);
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -37,7 +37,7 @@
* @i_xattr: <TODO>
* @i_dir_start_lookup: page index of last successful search
* @i_cno: checkpoint number for GC inode
- * @i_btnode_cache: cached pages of b-tree nodes
+ * @i_assoc_inode: associated inode (B-tree node cache holder or back pointer)
* @i_dirty: list for connecting dirty files
* @xattr_sem: semaphore for extended attributes processing
* @i_bh: buffer contains disk inode
@@ -52,7 +52,7 @@ struct nilfs_inode_info {
__u64 i_xattr; /* sector_t ??? */
__u32 i_dir_start_lookup;
__u64 i_cno; /* check point number for GC inode */
- struct address_space i_btnode_cache;
+ struct inode *i_assoc_inode;
struct list_head i_dirty; /* List for connecting dirty files */
#ifdef CONFIG_NILFS_XATTR
@@ -84,13 +84,6 @@ NILFS_BMAP_I(const struct nilfs_bmap *bm
return container_of(bmap, struct nilfs_inode_info, i_bmap_data);
}
-static inline struct inode *NILFS_BTNC_I(struct address_space *btnc)
-{
- struct nilfs_inode_info *ii =
- container_of(btnc, struct nilfs_inode_info, i_btnode_cache);
- return &ii->vfs_inode;
-}
-
/*
* Dynamic state flags of NILFS on-memory inode (i_state)
*/
@@ -107,6 +100,7 @@ enum {
NILFS_I_INODE_SYNC, /* dsync is not allowed for inode */
NILFS_I_BMAP, /* has bmap and btnode_cache */
NILFS_I_GCINODE, /* inode for GC, on memory only */
+ NILFS_I_BTNC, /* inode for btree node cache */
};
/*
@@ -277,6 +271,8 @@ struct inode *nilfs_iget(struct super_bl
unsigned long ino);
extern struct inode *nilfs_iget_for_gc(struct super_block *sb,
unsigned long ino, __u64 cno);
+int nilfs_attach_btree_node_cache(struct inode *inode);
+void nilfs_detach_btree_node_cache(struct inode *inode);
extern void nilfs_update_inode(struct inode *, struct buffer_head *, int);
extern void nilfs_truncate(struct inode *);
extern void nilfs_evict_inode(struct inode *);
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -462,10 +462,9 @@ void nilfs_mapping_init(struct address_s
/*
* NILFS2 needs clear_page_dirty() in the following two cases:
*
- * 1) For B-tree node pages and data pages of the dat/gcdat, NILFS2 clears
- * page dirty flags when it copies back pages from the shadow cache
- * (gcdat->{i_mapping,i_btnode_cache}) to its original cache
- * (dat->{i_mapping,i_btnode_cache}).
+ * 1) For B-tree node pages and data pages of DAT file, NILFS2 clears dirty
+ * flag of pages when it copies back pages from shadow cache to the
+ * original cache.
*
* 2) Some B-tree operations like insertion or deletion may dispose buffers
* in dirty state, and this needs to cancel the dirty state of their pages.
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -751,16 +751,19 @@ static void nilfs_lookup_dirty_node_buff
struct list_head *listp)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
- struct address_space *mapping = &ii->i_btnode_cache;
+ struct inode *btnc_inode = ii->i_assoc_inode;
struct pagevec pvec;
struct buffer_head *bh, *head;
unsigned int i;
pgoff_t index = 0;
+ if (!btnc_inode)
+ return;
+
pagevec_init(&pvec, 0);
- while (pagevec_lookup_tag(&pvec, mapping, &index, PAGECACHE_TAG_DIRTY,
- PAGEVEC_SIZE)) {
+ while (pagevec_lookup_tag(&pvec, btnc_inode->i_mapping, &index,
+ PAGECACHE_TAG_DIRTY, PAGEVEC_SIZE)) {
for (i = 0; i < pagevec_count(&pvec); i++) {
bh = head = page_buffers(pvec.pages[i]);
do {
@@ -2429,7 +2432,7 @@ nilfs_remove_written_gcinodes(struct the
continue;
list_del_init(&ii->i_dirty);
truncate_inode_pages(&ii->vfs_inode.i_data, 0);
- nilfs_btnode_cache_clear(&ii->i_btnode_cache);
+ nilfs_btnode_cache_clear(ii->i_assoc_inode->i_mapping);
iput(&ii->vfs_inode);
}
}
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -161,7 +161,8 @@ struct inode *nilfs_alloc_inode(struct s
ii->i_state = 0;
ii->i_cno = 0;
ii->vfs_inode.i_version = 1;
- nilfs_mapping_init(&ii->i_btnode_cache, &ii->vfs_inode);
+ ii->i_assoc_inode = NULL;
+ ii->i_bmap = &ii->i_bmap_data;
return &ii->vfs_inode;
}
@@ -1392,8 +1393,6 @@ static void nilfs_inode_init_once(void *
#ifdef CONFIG_NILFS_XATTR
init_rwsem(&ii->xattr_sem);
#endif
- address_space_init_once(&ii->i_btnode_cache);
- ii->i_bmap = &ii->i_bmap_data;
inode_init_once(&ii->vfs_inode);
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 067/210] nilfs2: fix lockdep warnings during disk space reclamation
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (65 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 066/210] nilfs2: fix lockdep warnings in page operations for btree nodes Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 068/210] ext4: avoid crash when inline data creation follows DIO write Greg Kroah-Hartman
` (145 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ryusuke Konishi, Matthew Wilcox,
David Hildenbrand, Hao Sun, Andrew Morton, Linus Torvalds
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
commit 6e211930f79aa45d422009a5f2e5467d2369ffe5 upstream.
During disk space reclamation, nilfs2 still emits the following lockdep
warning due to page/folio operations on shadowed page caches that nilfs2
uses to get a snapshot of DAT file in memory:
WARNING: CPU: 0 PID: 2643 at include/linux/backing-dev.h:272 __folio_mark_dirty+0x645/0x670
...
RIP: 0010:__folio_mark_dirty+0x645/0x670
...
Call Trace:
filemap_dirty_folio+0x74/0xd0
__set_page_dirty_nobuffers+0x85/0xb0
nilfs_copy_dirty_pages+0x288/0x510 [nilfs2]
nilfs_mdt_save_to_shadow_map+0x50/0xe0 [nilfs2]
nilfs_clean_segments+0xee/0x5d0 [nilfs2]
nilfs_ioctl_clean_segments.isra.19+0xb08/0xf40 [nilfs2]
nilfs_ioctl+0xc52/0xfb0 [nilfs2]
__x64_sys_ioctl+0x11d/0x170
This fixes the remaining warning by using inode objects to hold those
page caches.
Link: https://lkml.kernel.org/r/1647867427-30498-3-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nilfs2/dat.c | 4 ++-
fs/nilfs2/inode.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++----
fs/nilfs2/mdt.c | 38 ++++++++++++++++++++++----------
fs/nilfs2/mdt.h | 6 +----
fs/nilfs2/nilfs.h | 2 +
5 files changed, 92 insertions(+), 21 deletions(-)
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -506,7 +506,9 @@ int nilfs_dat_read(struct super_block *s
di = NILFS_DAT_I(dat);
lockdep_set_class(&di->mi.mi_sem, &dat_lock_key);
nilfs_palloc_setup_cache(dat, &di->palloc_cache);
- nilfs_mdt_setup_shadow_map(dat, &di->shadow);
+ err = nilfs_mdt_setup_shadow_map(dat, &di->shadow);
+ if (err)
+ goto failed;
err = nilfs_read_inode_common(dat, raw_inode);
if (err)
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -38,6 +38,7 @@
* @root: pointer on NILFS root object (mounted checkpoint)
* @for_gc: inode for GC flag
* @for_btnc: inode for B-tree node cache flag
+ * @for_shadow: inode for shadowed page cache flag
*/
struct nilfs_iget_args {
u64 ino;
@@ -45,6 +46,7 @@ struct nilfs_iget_args {
struct nilfs_root *root;
bool for_gc;
bool for_btnc;
+ bool for_shadow;
};
static int nilfs_iget_test(struct inode *inode, void *opaque);
@@ -334,7 +336,7 @@ static int nilfs_insert_inode_locked(str
{
struct nilfs_iget_args args = {
.ino = ino, .root = root, .cno = 0, .for_gc = false,
- .for_btnc = false
+ .for_btnc = false, .for_shadow = false
};
return insert_inode_locked4(inode, ino, nilfs_iget_test, &args);
@@ -570,6 +572,12 @@ static int nilfs_iget_test(struct inode
} else if (args->for_btnc) {
return 0;
}
+ if (test_bit(NILFS_I_SHADOW, &ii->i_state)) {
+ if (!args->for_shadow)
+ return 0;
+ } else if (args->for_shadow) {
+ return 0;
+ }
if (!test_bit(NILFS_I_GCINODE, &ii->i_state))
return !args->for_gc;
@@ -591,6 +599,8 @@ static int nilfs_iget_set(struct inode *
NILFS_I(inode)->i_state = BIT(NILFS_I_GCINODE);
if (args->for_btnc)
NILFS_I(inode)->i_state |= BIT(NILFS_I_BTNC);
+ if (args->for_shadow)
+ NILFS_I(inode)->i_state |= BIT(NILFS_I_SHADOW);
return 0;
}
@@ -599,7 +609,7 @@ struct inode *nilfs_ilookup(struct super
{
struct nilfs_iget_args args = {
.ino = ino, .root = root, .cno = 0, .for_gc = false,
- .for_btnc = false
+ .for_btnc = false, .for_shadow = false
};
return ilookup5(sb, ino, nilfs_iget_test, &args);
@@ -610,7 +620,7 @@ struct inode *nilfs_iget_locked(struct s
{
struct nilfs_iget_args args = {
.ino = ino, .root = root, .cno = 0, .for_gc = false,
- .for_btnc = false
+ .for_btnc = false, .for_shadow = false
};
return iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args);
@@ -642,7 +652,7 @@ struct inode *nilfs_iget_for_gc(struct s
{
struct nilfs_iget_args args = {
.ino = ino, .root = NULL, .cno = cno, .for_gc = true,
- .for_btnc = false
+ .for_btnc = false, .for_shadow = false
};
struct inode *inode;
int err;
@@ -689,6 +699,7 @@ int nilfs_attach_btree_node_cache(struct
args.cno = ii->i_cno;
args.for_gc = test_bit(NILFS_I_GCINODE, &ii->i_state) != 0;
args.for_btnc = true;
+ args.for_shadow = test_bit(NILFS_I_SHADOW, &ii->i_state) != 0;
btnc_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
nilfs_iget_set, &args);
@@ -724,6 +735,50 @@ void nilfs_detach_btree_node_cache(struc
}
}
+/**
+ * nilfs_iget_for_shadow - obtain inode for shadow mapping
+ * @inode: inode object that uses shadow mapping
+ *
+ * nilfs_iget_for_shadow() allocates a pair of inodes that holds page
+ * caches for shadow mapping. The page cache for data pages is set up
+ * in one inode and the one for b-tree node pages is set up in the
+ * other inode, which is attached to the former inode.
+ *
+ * Return Value: On success, a pointer to the inode for data pages is
+ * returned. On errors, one of the following negative error code is returned
+ * in a pointer type.
+ *
+ * %-ENOMEM - Insufficient memory available.
+ */
+struct inode *nilfs_iget_for_shadow(struct inode *inode)
+{
+ struct nilfs_iget_args args = {
+ .ino = inode->i_ino, .root = NULL, .cno = 0, .for_gc = false,
+ .for_btnc = false, .for_shadow = true
+ };
+ struct inode *s_inode;
+ int err;
+
+ s_inode = iget5_locked(inode->i_sb, inode->i_ino, nilfs_iget_test,
+ nilfs_iget_set, &args);
+ if (unlikely(!s_inode))
+ return ERR_PTR(-ENOMEM);
+ if (!(s_inode->i_state & I_NEW))
+ return inode;
+
+ NILFS_I(s_inode)->i_flags = 0;
+ memset(NILFS_I(s_inode)->i_bmap, 0, sizeof(struct nilfs_bmap));
+ mapping_set_gfp_mask(s_inode->i_mapping, GFP_NOFS);
+
+ err = nilfs_attach_btree_node_cache(s_inode);
+ if (unlikely(err)) {
+ iget_failed(s_inode);
+ return ERR_PTR(err);
+ }
+ unlock_new_inode(s_inode);
+ return s_inode;
+}
+
void nilfs_write_inode_common(struct inode *inode,
struct nilfs_inode *raw_inode, int has_bmap)
{
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -478,9 +478,18 @@ int nilfs_mdt_init(struct inode *inode,
void nilfs_mdt_clear(struct inode *inode)
{
struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
+ struct nilfs_shadow_map *shadow = mdi->mi_shadow;
if (mdi->mi_palloc_cache)
nilfs_palloc_destroy_cache(inode);
+
+ if (shadow) {
+ struct inode *s_inode = shadow->inode;
+
+ shadow->inode = NULL;
+ iput(s_inode);
+ mdi->mi_shadow = NULL;
+ }
}
/**
@@ -514,12 +523,15 @@ int nilfs_mdt_setup_shadow_map(struct in
struct nilfs_shadow_map *shadow)
{
struct nilfs_mdt_info *mi = NILFS_MDT(inode);
+ struct inode *s_inode;
INIT_LIST_HEAD(&shadow->frozen_buffers);
- address_space_init_once(&shadow->frozen_data);
- nilfs_mapping_init(&shadow->frozen_data, inode);
- address_space_init_once(&shadow->frozen_btnodes);
- nilfs_mapping_init(&shadow->frozen_btnodes, inode);
+
+ s_inode = nilfs_iget_for_shadow(inode);
+ if (IS_ERR(s_inode))
+ return PTR_ERR(s_inode);
+
+ shadow->inode = s_inode;
mi->mi_shadow = shadow;
return 0;
}
@@ -533,13 +545,14 @@ int nilfs_mdt_save_to_shadow_map(struct
struct nilfs_mdt_info *mi = NILFS_MDT(inode);
struct nilfs_inode_info *ii = NILFS_I(inode);
struct nilfs_shadow_map *shadow = mi->mi_shadow;
+ struct inode *s_inode = shadow->inode;
int ret;
- ret = nilfs_copy_dirty_pages(&shadow->frozen_data, inode->i_mapping);
+ ret = nilfs_copy_dirty_pages(s_inode->i_mapping, inode->i_mapping);
if (ret)
goto out;
- ret = nilfs_copy_dirty_pages(&shadow->frozen_btnodes,
+ ret = nilfs_copy_dirty_pages(NILFS_I(s_inode)->i_assoc_inode->i_mapping,
ii->i_assoc_inode->i_mapping);
if (ret)
goto out;
@@ -556,7 +569,7 @@ int nilfs_mdt_freeze_buffer(struct inode
struct page *page;
int blkbits = inode->i_blkbits;
- page = grab_cache_page(&shadow->frozen_data, bh->b_page->index);
+ page = grab_cache_page(shadow->inode->i_mapping, bh->b_page->index);
if (!page)
return -ENOMEM;
@@ -588,7 +601,7 @@ nilfs_mdt_get_frozen_buffer(struct inode
struct page *page;
int n;
- page = find_lock_page(&shadow->frozen_data, bh->b_page->index);
+ page = find_lock_page(shadow->inode->i_mapping, bh->b_page->index);
if (page) {
if (page_has_buffers(page)) {
n = bh_offset(bh) >> inode->i_blkbits;
@@ -629,11 +642,11 @@ void nilfs_mdt_restore_from_shadow_map(s
nilfs_palloc_clear_cache(inode);
nilfs_clear_dirty_pages(inode->i_mapping, true);
- nilfs_copy_back_pages(inode->i_mapping, &shadow->frozen_data);
+ nilfs_copy_back_pages(inode->i_mapping, shadow->inode->i_mapping);
nilfs_clear_dirty_pages(ii->i_assoc_inode->i_mapping, true);
nilfs_copy_back_pages(ii->i_assoc_inode->i_mapping,
- &shadow->frozen_btnodes);
+ NILFS_I(shadow->inode)->i_assoc_inode->i_mapping);
nilfs_bmap_restore(ii->i_bmap, &shadow->bmap_store);
@@ -648,10 +661,11 @@ void nilfs_mdt_clear_shadow_map(struct i
{
struct nilfs_mdt_info *mi = NILFS_MDT(inode);
struct nilfs_shadow_map *shadow = mi->mi_shadow;
+ struct inode *shadow_btnc_inode = NILFS_I(shadow->inode)->i_assoc_inode;
down_write(&mi->mi_sem);
nilfs_release_frozen_buffers(shadow);
- truncate_inode_pages(&shadow->frozen_data, 0);
- truncate_inode_pages(&shadow->frozen_btnodes, 0);
+ truncate_inode_pages(shadow->inode->i_mapping, 0);
+ truncate_inode_pages(shadow_btnc_inode->i_mapping, 0);
up_write(&mi->mi_sem);
}
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -27,14 +27,12 @@
/**
* struct nilfs_shadow_map - shadow mapping of meta data file
* @bmap_store: shadow copy of bmap state
- * @frozen_data: shadowed dirty data pages
- * @frozen_btnodes: shadowed dirty b-tree nodes' pages
+ * @inode: holder of page caches used in shadow mapping
* @frozen_buffers: list of frozen buffers
*/
struct nilfs_shadow_map {
struct nilfs_bmap_store bmap_store;
- struct address_space frozen_data;
- struct address_space frozen_btnodes;
+ struct inode *inode;
struct list_head frozen_buffers;
};
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -101,6 +101,7 @@ enum {
NILFS_I_BMAP, /* has bmap and btnode_cache */
NILFS_I_GCINODE, /* inode for GC, on memory only */
NILFS_I_BTNC, /* inode for btree node cache */
+ NILFS_I_SHADOW, /* inode for shadowed page cache */
};
/*
@@ -273,6 +274,7 @@ extern struct inode *nilfs_iget_for_gc(s
unsigned long ino, __u64 cno);
int nilfs_attach_btree_node_cache(struct inode *inode);
void nilfs_detach_btree_node_cache(struct inode *inode);
+struct inode *nilfs_iget_for_shadow(struct inode *inode);
extern void nilfs_update_inode(struct inode *, struct buffer_head *, int);
extern void nilfs_truncate(struct inode *);
extern void nilfs_evict_inode(struct inode *);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 068/210] ext4: avoid crash when inline data creation follows DIO write
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (66 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 067/210] nilfs2: fix lockdep warnings during disk space reclamation Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 069/210] ext4: fix null-ptr-deref in ext4_write_info Greg Kroah-Hartman
` (144 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, stable, Tadeusz Struk,
syzbot+bd13648a53ed6933ca49, Jan Kara, Lukas Czerner,
Theodore Tso
From: Jan Kara <jack@suse.cz>
commit 4bb26f2885ac6930984ee451b952c5a6042f2c0e upstream.
When inode is created and written to using direct IO, there is nothing
to clear the EXT4_STATE_MAY_INLINE_DATA flag. Thus when inode gets
truncated later to say 1 byte and written using normal write, we will
try to store the data as inline data. This confuses the code later
because the inode now has both normal block and inline data allocated
and the confusion manifests for example as:
kernel BUG at fs/ext4/inode.c:2721!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 359 Comm: repro Not tainted 5.19.0-rc8-00001-g31ba1e3b8305-dirty #15
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-1.fc36 04/01/2014
RIP: 0010:ext4_writepages+0x363d/0x3660
RSP: 0018:ffffc90000ccf260 EFLAGS: 00010293
RAX: ffffffff81e1abcd RBX: 0000008000000000 RCX: ffff88810842a180
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90000ccf650 R08: ffffffff81e17d58 R09: ffffed10222c680b
R10: dfffe910222c680c R11: 1ffff110222c680a R12: ffff888111634128
R13: ffffc90000ccf880 R14: 0000008410000000 R15: 0000000000000001
FS: 00007f72635d2640(0000) GS:ffff88811b000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565243379180 CR3: 000000010aa74000 CR4: 0000000000150eb0
Call Trace:
<TASK>
do_writepages+0x397/0x640
filemap_fdatawrite_wbc+0x151/0x1b0
file_write_and_wait_range+0x1c9/0x2b0
ext4_sync_file+0x19e/0xa00
vfs_fsync_range+0x17b/0x190
ext4_buffered_write_iter+0x488/0x530
ext4_file_write_iter+0x449/0x1b90
vfs_write+0xbcd/0xf40
ksys_write+0x198/0x2c0
__x64_sys_write+0x7b/0x90
do_syscall_64+0x3d/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
</TASK>
Fix the problem by clearing EXT4_STATE_MAY_INLINE_DATA when we are doing
direct IO write to a file.
Cc: stable@kernel.org
Reported-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Reported-by: syzbot+bd13648a53ed6933ca49@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=a1e89d09bbbcbd5c4cb45db230ee28c822953984
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Tested-by: Tadeusz Struk<tadeusz.struk@linaro.org>
Link: https://lore.kernel.org/r/20220727155753.13969-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/file.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -588,6 +588,12 @@ static loff_t ext4_seek_data(struct file
inode_unlock(inode);
return -ENXIO;
}
+ /*
+ * Make sure inline data cannot be created anymore since we are going
+ * to allocate blocks for DIO. We know the inode does not have any
+ * inline data now because ext4_dio_supported() checked for that.
+ */
+ ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
blkbits = inode->i_sb->s_blocksize_bits;
start = offset >> blkbits;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 069/210] ext4: fix null-ptr-deref in ext4_write_info
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (67 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 068/210] ext4: avoid crash when inline data creation follows DIO write Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 070/210] ext4: make ext4_lazyinit_thread freezable Greg Kroah-Hartman
` (143 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, stable, Baokun Li, Jan Kara, Theodore Tso
From: Baokun Li <libaokun1@huawei.com>
commit f9c1f248607d5546075d3f731e7607d5571f2b60 upstream.
I caught a null-ptr-deref bug as follows:
==================================================================
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 1 PID: 1589 Comm: umount Not tainted 5.10.0-02219-dirty #339
RIP: 0010:ext4_write_info+0x53/0x1b0
[...]
Call Trace:
dquot_writeback_dquots+0x341/0x9a0
ext4_sync_fs+0x19e/0x800
__sync_filesystem+0x83/0x100
sync_filesystem+0x89/0xf0
generic_shutdown_super+0x79/0x3e0
kill_block_super+0xa1/0x110
deactivate_locked_super+0xac/0x130
deactivate_super+0xb6/0xd0
cleanup_mnt+0x289/0x400
__cleanup_mnt+0x16/0x20
task_work_run+0x11c/0x1c0
exit_to_user_mode_prepare+0x203/0x210
syscall_exit_to_user_mode+0x5b/0x3a0
do_syscall_64+0x59/0x70
entry_SYSCALL_64_after_hwframe+0x44/0xa9
==================================================================
Above issue may happen as follows:
-------------------------------------
exit_to_user_mode_prepare
task_work_run
__cleanup_mnt
cleanup_mnt
deactivate_super
deactivate_locked_super
kill_block_super
generic_shutdown_super
shrink_dcache_for_umount
dentry = sb->s_root
sb->s_root = NULL <--- Here set NULL
sync_filesystem
__sync_filesystem
sb->s_op->sync_fs > ext4_sync_fs
dquot_writeback_dquots
sb->dq_op->write_info > ext4_write_info
ext4_journal_start(d_inode(sb->s_root), EXT4_HT_QUOTA, 2)
d_inode(sb->s_root)
s_root->d_inode <--- Null pointer dereference
To solve this problem, we use ext4_journal_start_sb directly
to avoid s_root being used.
Cc: stable@kernel.org
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220805123947.565152-1-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5601,7 +5601,7 @@ static int ext4_write_info(struct super_
handle_t *handle;
/* Data block + inode block */
- handle = ext4_journal_start(d_inode(sb->s_root), EXT4_HT_QUOTA, 2);
+ handle = ext4_journal_start_sb(sb, EXT4_HT_QUOTA, 2);
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit_info(sb, type);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 070/210] ext4: make ext4_lazyinit_thread freezable
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (68 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 069/210] ext4: fix null-ptr-deref in ext4_write_info Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 071/210] ext4: place buffer head allocation before handle start Greg Kroah-Hartman
` (142 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, stable, Lalith Rajendran, Theodore Tso
From: Lalith Rajendran <lalithkraj@google.com>
commit 3b575495ab8dbb4dbe85b4ac7f991693c3668ff5 upstream.
ext4_lazyinit_thread is not set freezable. Hence when the thread calls
try_to_freeze it doesn't freeze during suspend and continues to send
requests to the storage during suspend, resulting in suspend failures.
Cc: stable@kernel.org
Signed-off-by: Lalith Rajendran <lalithkraj@google.com>
Link: https://lore.kernel.org/r/20220818214049.1519544-1-lalithkraj@google.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3037,6 +3037,7 @@ static int ext4_lazyinit_thread(void *ar
unsigned long next_wakeup, cur;
BUG_ON(NULL == eli);
+ set_freezable();
cont_thread:
while (true) {
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 071/210] ext4: place buffer head allocation before handle start
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (69 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 070/210] ext4: make ext4_lazyinit_thread freezable Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 072/210] livepatch: fix race between fork and KLP transition Greg Kroah-Hartman
` (141 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, stable, Jinke Han, Theodore Tso
From: Jinke Han <hanjinke.666@bytedance.com>
commit d1052d236eddf6aa851434db1897b942e8db9921 upstream.
In our product environment, we encounter some jbd hung waiting handles to
stop while several writters were doing memory reclaim for buffer head
allocation in delay alloc write path. Ext4 do buffer head allocation with
holding transaction handle which may be blocked too long if the reclaim
works not so smooth. According to our bcc trace, the reclaim time in
buffer head allocation can reach 258s and the jbd transaction commit also
take almost the same time meanwhile. Except for these extreme cases,
we often see several seconds delays for cgroup memory reclaim on our
servers. This is more likely to happen considering docker environment.
One thing to note, the allocation of buffer heads is as often as page
allocation or more often when blocksize less than page size. Just like
page cache allocation, we should also place the buffer head allocation
before startting the handle.
Cc: stable@kernel.org
Signed-off-by: Jinke Han <hanjinke.666@bytedance.com>
Link: https://lore.kernel.org/r/20220903012429.22555-1-hanjinke.666@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/inode.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1309,6 +1309,13 @@ retry_grab:
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page)
return -ENOMEM;
+ /*
+ * The same as page allocation, we prealloc buffer heads before
+ * starting the handle.
+ */
+ if (!page_has_buffers(page))
+ create_empty_buffers(page, inode->i_sb->s_blocksize, 0);
+
unlock_page(page);
retry_journal:
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 072/210] livepatch: fix race between fork and KLP transition
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (70 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 071/210] ext4: place buffer head allocation before handle start Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 073/210] ftrace: Properly unset FTRACE_HASH_FL_MOD Greg Kroah-Hartman
` (140 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rik van Riel, Breno Leitao,
Petr Mladek, Josh Poimboeuf, stable
From: Rik van Riel <riel@surriel.com>
commit 747f7a2901174c9afa805dddfb7b24db6f65e985 upstream.
The KLP transition code depends on the TIF_PATCH_PENDING and
the task->patch_state to stay in sync. On a normal (forward)
transition, TIF_PATCH_PENDING will be set on every task in
the system, while on a reverse transition (after a failed
forward one) first TIF_PATCH_PENDING will be cleared from
every task, followed by it being set on tasks that need to
be transitioned back to the original code.
However, the fork code copies over the TIF_PATCH_PENDING flag
from the parent to the child early on, in dup_task_struct and
setup_thread_stack. Much later, klp_copy_process will set
child->patch_state to match that of the parent.
However, the parent's patch_state may have been changed by KLP loading
or unloading since it was initially copied over into the child.
This results in the KLP code occasionally hitting this warning in
klp_complete_transition:
for_each_process_thread(g, task) {
WARN_ON_ONCE(test_tsk_thread_flag(task, TIF_PATCH_PENDING));
task->patch_state = KLP_UNDEFINED;
}
Set, or clear, the TIF_PATCH_PENDING flag in the child task
depending on whether or not it is needed at the time
klp_copy_process is called, at a point in copy_process where the
tasklist_lock is held exclusively, preventing races with the KLP
code.
The KLP code does have a few places where the state is changed
without the tasklist_lock held, but those should not cause
problems because klp_update_patch_state(current) cannot be
called while the current task is in the middle of fork,
klp_check_and_switch_task() which is called under the pi_lock,
which prevents rescheduling, and manipulation of the patch
state of idle tasks, which do not fork.
This should prevent this warning from triggering again in the
future, and close the race for both normal and reverse transitions.
Signed-off-by: Rik van Riel <riel@surriel.com>
Reported-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Fixes: d83a7cb375ee ("livepatch: change to a per-task consistency model")
Cc: stable@kernel.org
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220808150019.03d6a67b@imladris.surriel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/livepatch/transition.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
--- a/kernel/livepatch/transition.c
+++ b/kernel/livepatch/transition.c
@@ -573,7 +573,21 @@ void klp_reverse_transition(void)
/* Called from copy_process() during fork */
void klp_copy_process(struct task_struct *child)
{
- child->patch_state = current->patch_state;
- /* TIF_PATCH_PENDING gets copied in setup_thread_stack() */
+ /*
+ * The parent process may have gone through a KLP transition since
+ * the thread flag was copied in setup_thread_stack earlier. Bring
+ * the task flag up to date with the parent here.
+ *
+ * The operation is serialized against all klp_*_transition()
+ * operations by the tasklist_lock. The only exception is
+ * klp_update_patch_state(current), but we cannot race with
+ * that because we are current.
+ */
+ if (test_tsk_thread_flag(current, TIF_PATCH_PENDING))
+ set_tsk_thread_flag(child, TIF_PATCH_PENDING);
+ else
+ clear_tsk_thread_flag(child, TIF_PATCH_PENDING);
+
+ child->patch_state = current->patch_state;
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 073/210] ftrace: Properly unset FTRACE_HASH_FL_MOD
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (71 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 072/210] livepatch: fix race between fork and KLP transition Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 074/210] ring-buffer: Allow splice to read previous partially read pages Greg Kroah-Hartman
` (139 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, mingo, Zheng Yejian, Steven Rostedt (Google)
From: Zheng Yejian <zhengyejian1@huawei.com>
commit 0ce0638edf5ec83343302b884fa208179580700a upstream.
When executing following commands like what document said, but the log
"#### all functions enabled ####" was not shown as expect:
1. Set a 'mod' filter:
$ echo 'write*:mod:ext3' > /sys/kernel/tracing/set_ftrace_filter
2. Invert above filter:
$ echo '!write*:mod:ext3' >> /sys/kernel/tracing/set_ftrace_filter
3. Read the file:
$ cat /sys/kernel/tracing/set_ftrace_filter
By some debugging, I found that flag FTRACE_HASH_FL_MOD was not unset
after inversion like above step 2 and then result of ftrace_hash_empty()
is incorrect.
Link: https://lkml.kernel.org/r/20220926152008.2239274-1-zhengyejian1@huawei.com
Cc: <mingo@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 8c08f0d5c6fb ("ftrace: Have cached module filters be an active filter")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/trace/ftrace.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -5128,8 +5128,12 @@ int ftrace_regex_release(struct inode *i
if (filter_hash) {
orig_hash = &iter->ops->func_hash->filter_hash;
- if (iter->tr && !list_empty(&iter->tr->mod_trace))
- iter->hash->flags |= FTRACE_HASH_FL_MOD;
+ if (iter->tr) {
+ if (list_empty(&iter->tr->mod_trace))
+ iter->hash->flags &= ~FTRACE_HASH_FL_MOD;
+ else
+ iter->hash->flags |= FTRACE_HASH_FL_MOD;
+ }
} else
orig_hash = &iter->ops->func_hash->notrace_hash;
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 074/210] ring-buffer: Allow splice to read previous partially read pages
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (72 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 073/210] ftrace: Properly unset FTRACE_HASH_FL_MOD Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 075/210] ring-buffer: Check pending waiters when doing wake ups as well Greg Kroah-Hartman
` (138 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Steven Rostedt (Google)
From: Steven Rostedt (Google) <rostedt@goodmis.org>
commit fa8f4a89736b654125fb254b0db753ac68a5fced upstream.
If a page is partially read, and then the splice system call is run
against the ring buffer, it will always fail to read, no matter how much
is in the ring buffer. That's because the code path for a partial read of
the page does will fail if the "full" flag is set.
The splice system call wants full pages, so if the read of the ring buffer
is not yet full, it should return zero, and the splice will block. But if
a previous read was done, where the beginning has been consumed, it should
still be given to the splice caller if the rest of the page has been
written to.
This caused the splice command to never consume data in this scenario, and
let the ring buffer just fill up and lose events.
Link: https://lkml.kernel.org/r/20220927144317.46be6b80@gandalf.local.home
Cc: stable@vger.kernel.org
Fixes: 8789a9e7df6bf ("ring-buffer: read page interface")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/trace/ring_buffer.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4639,7 +4639,15 @@ int ring_buffer_read_page(struct ring_bu
unsigned int pos = 0;
unsigned int size;
- if (full)
+ /*
+ * If a full page is expected, this can still be returned
+ * if there's been a previous partial read and the
+ * rest of the page can be read and the commit page is off
+ * the reader page.
+ */
+ if (full &&
+ (!read || (len < (commit - read)) ||
+ cpu_buffer->reader_page == cpu_buffer->commit_page))
goto out_unlock;
if (len > (commit - read))
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 075/210] ring-buffer: Check pending waiters when doing wake ups as well
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (73 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 074/210] ring-buffer: Allow splice to read previous partially read pages Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 076/210] ring-buffer: Fix race between reset page and reading page Greg Kroah-Hartman
` (137 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ingo Molnar, Andrew Morton,
Steven Rostedt (Google)
From: Steven Rostedt (Google) <rostedt@goodmis.org>
commit ec0bbc5ec5664dcee344f79373852117dc672c86 upstream.
The wake up waiters only checks the "wakeup_full" variable and not the
"full_waiters_pending". The full_waiters_pending is set when a waiter is
added to the wait queue. The wakeup_full is only set when an event is
triggered, and it clears the full_waiters_pending to avoid multiple calls
to irq_work_queue().
The irq_work callback really needs to check both wakeup_full as well as
full_waiters_pending such that this code can be used to wake up waiters
when a file is closed that represents the ring buffer and the waiters need
to be woken up.
Link: https://lkml.kernel.org/r/20220927231824.209460321@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 15693458c4bc0 ("tracing/ring-buffer: Move poll wake ups into ring buffer code")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/trace/ring_buffer.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -512,8 +512,9 @@ static void rb_wake_up_waiters(struct ir
struct rb_irq_work *rbwork = container_of(work, struct rb_irq_work, work);
wake_up_all(&rbwork->waiters);
- if (rbwork->wakeup_full) {
+ if (rbwork->full_waiters_pending || rbwork->wakeup_full) {
rbwork->wakeup_full = false;
+ rbwork->full_waiters_pending = false;
wake_up_all(&rbwork->full_waiters);
}
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 076/210] ring-buffer: Fix race between reset page and reading page
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (74 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 075/210] ring-buffer: Check pending waiters when doing wake ups as well Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 077/210] KVM: x86/emulator: Fix handing of POP SS to correctly set interruptibility Greg Kroah-Hartman
` (136 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ingo Molnar, Andrew Morton, Jiazi.Li,
Steven Rostedt (Google)
From: Steven Rostedt (Google) <rostedt@goodmis.org>
commit a0fcaaed0c46cf9399d3a2d6e0c87ddb3df0e044 upstream.
The ring buffer is broken up into sub buffers (currently of page size).
Each sub buffer has a pointer to its "tail" (the last event written to the
sub buffer). When a new event is requested, the tail is locally
incremented to cover the size of the new event. This is done in a way that
there is no need for locking.
If the tail goes past the end of the sub buffer, the process of moving to
the next sub buffer takes place. After setting the current sub buffer to
the next one, the previous one that had the tail go passed the end of the
sub buffer needs to be reset back to the original tail location (before
the new event was requested) and the rest of the sub buffer needs to be
"padded".
The race happens when a reader takes control of the sub buffer. As readers
do a "swap" of sub buffers from the ring buffer to get exclusive access to
the sub buffer, it replaces the "head" sub buffer with an empty sub buffer
that goes back into the writable portion of the ring buffer. This swap can
happen as soon as the writer moves to the next sub buffer and before it
updates the last sub buffer with padding.
Because the sub buffer can be released to the reader while the writer is
still updating the padding, it is possible for the reader to see the event
that goes past the end of the sub buffer. This can cause obvious issues.
To fix this, add a few memory barriers so that the reader definitely sees
the updates to the sub buffer, and also waits until the writer has put
back the "tail" of the sub buffer back to the last event that was written
on it.
To be paranoid, it will only spin for 1 second, otherwise it will
warn and shutdown the ring buffer code. 1 second should be enough as
the writer does have preemption disabled. If the writer doesn't move
within 1 second (with preemption disabled) something is horribly
wrong. No interrupt should last 1 second!
Link: https://lore.kernel.org/all/20220830120854.7545-1-jiazi.li@transsion.com/
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216369
Link: https://lkml.kernel.org/r/20220929104909.0650a36c@gandalf.local.home
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org
Fixes: c7b0930857e22 ("ring-buffer: prevent adding write in discarded area")
Reported-by: Jiazi.Li <jiazi.li@transsion.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/trace/ring_buffer.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2096,6 +2096,9 @@ rb_reset_tail(struct ring_buffer_per_cpu
/* Mark the rest of the page with padding */
rb_event_set_padding(event);
+ /* Make sure the padding is visible before the write update */
+ smp_wmb();
+
/* Set the write back to the previous setting */
local_sub(length, &tail_page->write);
return;
@@ -2107,6 +2110,9 @@ rb_reset_tail(struct ring_buffer_per_cpu
/* time delta must be non zero */
event->time_delta = 1;
+ /* Make sure the padding is visible before the tail_page->write update */
+ smp_wmb();
+
/* Set write to end of buffer */
length = (tail + length) - BUF_PAGE_SIZE;
local_sub(length, &tail_page->write);
@@ -3697,6 +3703,33 @@ rb_get_reader_page(struct ring_buffer_pe
arch_spin_unlock(&cpu_buffer->lock);
local_irq_restore(flags);
+ /*
+ * The writer has preempt disable, wait for it. But not forever
+ * Although, 1 second is pretty much "forever"
+ */
+#define USECS_WAIT 1000000
+ for (nr_loops = 0; nr_loops < USECS_WAIT; nr_loops++) {
+ /* If the write is past the end of page, a writer is still updating it */
+ if (likely(!reader || rb_page_write(reader) <= BUF_PAGE_SIZE))
+ break;
+
+ udelay(1);
+
+ /* Get the latest version of the reader write value */
+ smp_rmb();
+ }
+
+ /* The writer is not moving forward? Something is wrong */
+ if (RB_WARN_ON(cpu_buffer, nr_loops == USECS_WAIT))
+ reader = NULL;
+
+ /*
+ * Make sure we see any padding after the write update
+ * (see rb_reset_tail())
+ */
+ smp_rmb();
+
+
return reader;
}
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 077/210] KVM: x86/emulator: Fix handing of POP SS to correctly set interruptibility
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (75 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 076/210] ring-buffer: Fix race between reset page and reading page Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 078/210] KVM: nVMX: Unconditionally purge queued/injected events on nested "exit" Greg Kroah-Hartman
` (135 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michal Luczaj, Sean Christopherson
From: Michal Luczaj <mhal@rbox.co>
commit 6aa5c47c351b22c21205c87977c84809cd015fcf upstream.
The emulator checks the wrong variable while setting the CPU
interruptibility state, the target segment is embedded in the instruction
opcode, not the ModR/M register. Fix the condition.
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Fixes: a5457e7bcf9a ("KVM: emulate: POP SS triggers a MOV SS shadow too")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20220821215900.1419215-1-mhal@rbox.co
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/emulate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1988,7 +1988,7 @@ static int em_pop_sreg(struct x86_emulat
if (rc != X86EMUL_CONTINUE)
return rc;
- if (ctxt->modrm_reg == VCPU_SREG_SS)
+ if (seg == VCPU_SREG_SS)
ctxt->interruptibility = KVM_X86_SHADOW_INT_MOV_SS;
if (ctxt->op_bytes > 2)
rsp_increment(ctxt, ctxt->op_bytes - 2);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 078/210] KVM: nVMX: Unconditionally purge queued/injected events on nested "exit"
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (76 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 077/210] KVM: x86/emulator: Fix handing of POP SS to correctly set interruptibility Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 079/210] gcov: support GCC 12.1 and newer compilers Greg Kroah-Hartman
` (134 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Jim Mattson,
Maxim Levitsky, Paolo Bonzini
From: Sean Christopherson <seanjc@google.com>
commit d953540430c5af57f5de97ea9e36253908204027 upstream.
Drop pending exceptions and events queued for re-injection when leaving
nested guest mode, even if the "exit" is due to VM-Fail, SMI, or forced
by host userspace. Failure to purge events could result in an event
belonging to L2 being injected into L1.
This _should_ never happen for VM-Fail as all events should be blocked by
nested_run_pending, but it's possible if KVM, not the L1 hypervisor, is
the source of VM-Fail when running vmcs02.
SMI is a nop (barring unknown bugs) as recognition of SMI and thus entry
to SMM is blocked by pending exceptions and re-injected events.
Forced exit is definitely buggy, but has likely gone unnoticed because
userspace probably follows the forced exit with KVM_SET_VCPU_EVENTS (or
some other ioctl() that purges the queue).
Fixes: 4f350c6dbcb9 ("kvm: nVMX: Handle deferred early VMLAUNCH/VMRESUME failure properly")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20220830231614.3580124-2-seanjc@google.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/vmx.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -11917,14 +11917,6 @@ static void prepare_vmcs12(struct kvm_vc
*/
vmcs12_save_pending_event(vcpu, vmcs12);
}
-
- /*
- * Drop what we picked up for L2 via vmx_complete_interrupts. It is
- * preserved above and would only end up incorrectly in L1.
- */
- vcpu->arch.nmi_injected = false;
- kvm_clear_exception_queue(vcpu);
- kvm_clear_interrupt_queue(vcpu);
}
/*
@@ -12236,6 +12228,17 @@ static void nested_vmx_vmexit(struct kvm
nested_vmx_abort(vcpu, VMX_ABORT_SAVE_GUEST_MSR_FAIL);
}
+ /*
+ * Drop events/exceptions that were queued for re-injection to L2
+ * (picked up via vmx_complete_interrupts()), as well as exceptions
+ * that were pending for L2. Note, this must NOT be hoisted above
+ * prepare_vmcs12(), events/exceptions queued for re-injection need to
+ * be captured in vmcs12 (see vmcs12_save_pending_event()).
+ */
+ vcpu->arch.nmi_injected = false;
+ kvm_clear_exception_queue(vcpu);
+ kvm_clear_interrupt_queue(vcpu);
+
vmx_switch_vmcs(vcpu, &vmx->vmcs01);
vm_entry_controls_reset_shadow(vmx);
vm_exit_controls_reset_shadow(vmx);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 079/210] gcov: support GCC 12.1 and newer compilers
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (77 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 078/210] KVM: nVMX: Unconditionally purge queued/injected events on nested "exit" Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 080/210] selinux: use "grep -E" instead of "egrep" Greg Kroah-Hartman
` (133 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Martin Liska, Peter Oberparleiter,
Andrew Morton
From: Martin Liska <mliska@suse.cz>
commit 977ef30a7d888eeb52fb6908f99080f33e5309a8 upstream.
Starting with GCC 12.1, the created .gcda format can't be read by gcov
tool. There are 2 significant changes to the .gcda file format that
need to be supported:
a) [gcov: Use system IO buffering]
(23eb66d1d46a34cb28c4acbdf8a1deb80a7c5a05) changed that all sizes in
the format are in bytes and not in words (4B)
b) [gcov: make profile merging smarter]
(72e0c742bd01f8e7e6dcca64042b9ad7e75979de) add a new checksum to the
file header.
Tested with GCC 7.5, 10.4, 12.2 and the current master.
Link: https://lkml.kernel.org/r/624bda92-f307-30e9-9aaa-8cc678b2dfb2@suse.cz
Signed-off-by: Martin Liska <mliska@suse.cz>
Tested-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/gcov/gcc_4_7.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -33,6 +33,13 @@
#define GCOV_TAG_FUNCTION_LENGTH 3
+/* Since GCC 12.1 sizes are in BYTES and not in WORDS (4B). */
+#if (__GNUC__ >= 12)
+#define GCOV_UNIT_SIZE 4
+#else
+#define GCOV_UNIT_SIZE 1
+#endif
+
static struct gcov_info *gcov_info_head;
/**
@@ -439,12 +446,18 @@ static size_t convert_to_gcda(char *buff
pos += store_gcov_u32(buffer, pos, info->version);
pos += store_gcov_u32(buffer, pos, info->stamp);
+#if (__GNUC__ >= 12)
+ /* Use zero as checksum of the compilation unit. */
+ pos += store_gcov_u32(buffer, pos, 0);
+#endif
+
for (fi_idx = 0; fi_idx < info->n_functions; fi_idx++) {
fi_ptr = info->functions[fi_idx];
/* Function record. */
pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION);
- pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION_LENGTH);
+ pos += store_gcov_u32(buffer, pos,
+ GCOV_TAG_FUNCTION_LENGTH * GCOV_UNIT_SIZE);
pos += store_gcov_u32(buffer, pos, fi_ptr->ident);
pos += store_gcov_u32(buffer, pos, fi_ptr->lineno_checksum);
pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum);
@@ -458,7 +471,8 @@ static size_t convert_to_gcda(char *buff
/* Counter record. */
pos += store_gcov_u32(buffer, pos,
GCOV_TAG_FOR_COUNTER(ct_idx));
- pos += store_gcov_u32(buffer, pos, ci_ptr->num * 2);
+ pos += store_gcov_u32(buffer, pos,
+ ci_ptr->num * 2 * GCOV_UNIT_SIZE);
for (cv_idx = 0; cv_idx < ci_ptr->num; cv_idx++) {
pos += store_gcov_u64(buffer, pos,
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 080/210] selinux: use "grep -E" instead of "egrep"
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (78 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 079/210] gcov: support GCC 12.1 and newer compilers Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 081/210] sh: machvec: Use char[] for section boundaries Greg Kroah-Hartman
` (132 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Paul Moore, Stephen Smalley,
Eric Paris, selinux
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit c969bb8dbaf2f3628927eae73e7c579a74cf1b6e upstream.
The latest version of grep claims that egrep is now obsolete so the build
now contains warnings that look like:
egrep: warning: egrep is obsolescent; using grep -E
fix this by using "grep -E" instead.
Cc: Paul Moore <paul@paul-moore.com>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Eric Paris <eparis@parisplace.org>
Cc: selinux@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[PM: tweak to remove vdso reference, cleanup subj line]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
scripts/selinux/install_policy.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/selinux/install_policy.sh
+++ b/scripts/selinux/install_policy.sh
@@ -57,7 +57,7 @@ fi
cd /etc/selinux/dummy/contexts/files
$SF file_contexts /
-mounts=`cat /proc/$$/mounts | egrep "ext2|ext3|xfs|jfs|ext4|ext4dev|gfs2" | awk '{ print $2 '}`
+mounts=`cat /proc/$$/mounts | grep -E "ext2|ext3|xfs|jfs|ext4|ext4dev|gfs2" | awk '{ print $2 '}`
$SF file_contexts $mounts
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 081/210] sh: machvec: Use char[] for section boundaries
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (79 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 080/210] selinux: use "grep -E" instead of "egrep" Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:29 ` [PATCH 4.14 082/210] wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state() Greg Kroah-Hartman
` (131 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yoshinori Sato, Rich Felker,
linux-sh, Geert Uytterhoeven, Geert Uytterhoeven,
Gustavo A. R. Silva, Kees Cook, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit c5783af354688b24abd359f7086c282ec74de993 ]
As done for other sections, define the extern as a character array,
which relaxes many of the compiler-time object size checks, which would
otherwise assume it's a single long. Solves the following build error:
arch/sh/kernel/machvec.c: error: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Werror=array-bounds]: => 105:33
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/lkml/alpine.DEB.2.22.394.2209050944290.964530@ramsan.of.borg/
Fixes: 9655ad03af2d ("sh: Fixup machvec support.")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Rich Felker <dalias@libc.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/sh/include/asm/sections.h | 2 +-
arch/sh/kernel/machvec.c | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/sh/include/asm/sections.h b/arch/sh/include/asm/sections.h
index 8edb824049b9..0cb0ca149ac3 100644
--- a/arch/sh/include/asm/sections.h
+++ b/arch/sh/include/asm/sections.h
@@ -4,7 +4,7 @@
#include <asm-generic/sections.h>
-extern long __machvec_start, __machvec_end;
+extern char __machvec_start[], __machvec_end[];
extern char __uncached_start, __uncached_end;
extern char __start_eh_frame[], __stop_eh_frame[];
diff --git a/arch/sh/kernel/machvec.c b/arch/sh/kernel/machvec.c
index ec05f491c347..a9f797a76e7c 100644
--- a/arch/sh/kernel/machvec.c
+++ b/arch/sh/kernel/machvec.c
@@ -22,8 +22,8 @@
#define MV_NAME_SIZE 32
#define for_each_mv(mv) \
- for ((mv) = (struct sh_machine_vector *)&__machvec_start; \
- (mv) && (unsigned long)(mv) < (unsigned long)&__machvec_end; \
+ for ((mv) = (struct sh_machine_vector *)__machvec_start; \
+ (mv) && (unsigned long)(mv) < (unsigned long)__machvec_end; \
(mv)++)
static struct sh_machine_vector * __init get_mv_byname(const char *name)
@@ -89,8 +89,8 @@ void __init sh_mv_setup(void)
if (!machvec_selected) {
unsigned long machvec_size;
- machvec_size = ((unsigned long)&__machvec_end -
- (unsigned long)&__machvec_start);
+ machvec_size = ((unsigned long)__machvec_end -
+ (unsigned long)__machvec_start);
/*
* Sanity check for machvec section alignment. Ensure
@@ -104,7 +104,7 @@ void __init sh_mv_setup(void)
* vector (usually the only one) from .machvec.init.
*/
if (machvec_size >= sizeof(struct sh_machine_vector))
- sh_mv = *(struct sh_machine_vector *)&__machvec_start;
+ sh_mv = *(struct sh_machine_vector *)__machvec_start;
}
printk(KERN_NOTICE "Booting machvec: %s\n", get_system_type());
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 082/210] wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (80 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 081/210] sh: machvec: Use char[] for section boundaries Greg Kroah-Hartman
@ 2022-10-24 11:29 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 083/210] wifi: mac80211: allow bw change during channel switch in mesh Greg Kroah-Hartman
` (130 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:29 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wen Gong, Kalle Valo, Sasha Levin
From: Wen Gong <quic_wgong@quicinc.com>
[ Upstream commit f020d9570a04df0762a2ac5c50cf1d8c511c9164 ]
When peer delete failed in a disconnect operation, use-after-free
detected by KFENCE in below log. It is because for each vdev_id and
address, it has only one struct ath10k_peer, it is allocated in
ath10k_peer_map_event(). When connected to an AP, it has more than
one HTT_T2H_MSG_TYPE_PEER_MAP reported from firmware, then the
array peer_map of struct ath10k will be set muti-elements to the
same ath10k_peer in ath10k_peer_map_event(). When peer delete failed
in ath10k_sta_state(), the ath10k_peer will be free for the 1st peer
id in array peer_map of struct ath10k, and then use-after-free happened
for the 2nd peer id because they map to the same ath10k_peer.
And clean up all peers in array peer_map for the ath10k_peer, then
user-after-free disappeared
peer map event log:
[ 306.911021] wlan0: authenticate with b0:2a:43:e6:75:0e
[ 306.957187] ath10k_pci 0000:01:00.0: mac vdev 0 peer create b0:2a:43:e6:75:0e (new sta) sta 1 / 32 peer 1 / 33
[ 306.957395] ath10k_pci 0000:01:00.0: htt peer map vdev 0 peer b0:2a:43:e6:75:0e id 246
[ 306.957404] ath10k_pci 0000:01:00.0: htt peer map vdev 0 peer b0:2a:43:e6:75:0e id 198
[ 306.986924] ath10k_pci 0000:01:00.0: htt peer map vdev 0 peer b0:2a:43:e6:75:0e id 166
peer unmap event log:
[ 435.715691] wlan0: deauthenticating from b0:2a:43:e6:75:0e by local choice (Reason: 3=DEAUTH_LEAVING)
[ 435.716802] ath10k_pci 0000:01:00.0: mac vdev 0 peer delete b0:2a:43:e6:75:0e sta ffff990e0e9c2b50 (sta gone)
[ 435.717177] ath10k_pci 0000:01:00.0: htt peer unmap vdev 0 peer b0:2a:43:e6:75:0e id 246
[ 435.717186] ath10k_pci 0000:01:00.0: htt peer unmap vdev 0 peer b0:2a:43:e6:75:0e id 198
[ 435.717193] ath10k_pci 0000:01:00.0: htt peer unmap vdev 0 peer b0:2a:43:e6:75:0e id 166
use-after-free log:
[21705.888627] wlan0: deauthenticating from d0:76:8f:82:be:75 by local choice (Reason: 3=DEAUTH_LEAVING)
[21713.799910] ath10k_pci 0000:01:00.0: failed to delete peer d0:76:8f:82:be:75 for vdev 0: -110
[21713.799925] ath10k_pci 0000:01:00.0: found sta peer d0:76:8f:82:be:75 (ptr 0000000000000000 id 102) entry on vdev 0 after it was supposedly removed
[21713.799968] ==================================================================
[21713.799991] BUG: KFENCE: use-after-free read in ath10k_sta_state+0x265/0xb8a [ath10k_core]
[21713.799991]
[21713.799997] Use-after-free read at 0x00000000abe1c75e (in kfence-#69):
[21713.800010] ath10k_sta_state+0x265/0xb8a [ath10k_core]
[21713.800041] drv_sta_state+0x115/0x677 [mac80211]
[21713.800059] __sta_info_destroy_part2+0xb1/0x133 [mac80211]
[21713.800076] __sta_info_flush+0x11d/0x162 [mac80211]
[21713.800093] ieee80211_set_disassoc+0x12d/0x2f4 [mac80211]
[21713.800110] ieee80211_mgd_deauth+0x26c/0x29b [mac80211]
[21713.800137] cfg80211_mlme_deauth+0x13f/0x1bb [cfg80211]
[21713.800153] nl80211_deauthenticate+0xf8/0x121 [cfg80211]
[21713.800161] genl_rcv_msg+0x38e/0x3be
[21713.800166] netlink_rcv_skb+0x89/0xf7
[21713.800171] genl_rcv+0x28/0x36
[21713.800176] netlink_unicast+0x179/0x24b
[21713.800181] netlink_sendmsg+0x3a0/0x40e
[21713.800187] sock_sendmsg+0x72/0x76
[21713.800192] ____sys_sendmsg+0x16d/0x1e3
[21713.800196] ___sys_sendmsg+0x95/0xd1
[21713.800200] __sys_sendmsg+0x85/0xbf
[21713.800205] do_syscall_64+0x43/0x55
[21713.800210] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[21713.800213]
[21713.800219] kfence-#69: 0x000000009149b0d5-0x000000004c0697fb, size=1064, cache=kmalloc-2k
[21713.800219]
[21713.800224] allocated by task 13 on cpu 0 at 21705.501373s:
[21713.800241] ath10k_peer_map_event+0x7e/0x154 [ath10k_core]
[21713.800254] ath10k_htt_t2h_msg_handler+0x586/0x1039 [ath10k_core]
[21713.800265] ath10k_htt_htc_t2h_msg_handler+0x12/0x28 [ath10k_core]
[21713.800277] ath10k_htc_rx_completion_handler+0x14c/0x1b5 [ath10k_core]
[21713.800283] ath10k_pci_process_rx_cb+0x195/0x1df [ath10k_pci]
[21713.800294] ath10k_ce_per_engine_service+0x55/0x74 [ath10k_core]
[21713.800305] ath10k_ce_per_engine_service_any+0x76/0x84 [ath10k_core]
[21713.800310] ath10k_pci_napi_poll+0x49/0x144 [ath10k_pci]
[21713.800316] net_rx_action+0xdc/0x361
[21713.800320] __do_softirq+0x163/0x29a
[21713.800325] asm_call_irq_on_stack+0x12/0x20
[21713.800331] do_softirq_own_stack+0x3c/0x48
[21713.800337] __irq_exit_rcu+0x9b/0x9d
[21713.800342] common_interrupt+0xc9/0x14d
[21713.800346] asm_common_interrupt+0x1e/0x40
[21713.800351] ksoftirqd_should_run+0x5/0x16
[21713.800357] smpboot_thread_fn+0x148/0x211
[21713.800362] kthread+0x150/0x15f
[21713.800367] ret_from_fork+0x22/0x30
[21713.800370]
[21713.800374] freed by task 708 on cpu 1 at 21713.799953s:
[21713.800498] ath10k_sta_state+0x2c6/0xb8a [ath10k_core]
[21713.800515] drv_sta_state+0x115/0x677 [mac80211]
[21713.800532] __sta_info_destroy_part2+0xb1/0x133 [mac80211]
[21713.800548] __sta_info_flush+0x11d/0x162 [mac80211]
[21713.800565] ieee80211_set_disassoc+0x12d/0x2f4 [mac80211]
[21713.800581] ieee80211_mgd_deauth+0x26c/0x29b [mac80211]
[21713.800598] cfg80211_mlme_deauth+0x13f/0x1bb [cfg80211]
[21713.800614] nl80211_deauthenticate+0xf8/0x121 [cfg80211]
[21713.800619] genl_rcv_msg+0x38e/0x3be
[21713.800623] netlink_rcv_skb+0x89/0xf7
[21713.800628] genl_rcv+0x28/0x36
[21713.800632] netlink_unicast+0x179/0x24b
[21713.800637] netlink_sendmsg+0x3a0/0x40e
[21713.800642] sock_sendmsg+0x72/0x76
[21713.800646] ____sys_sendmsg+0x16d/0x1e3
[21713.800651] ___sys_sendmsg+0x95/0xd1
[21713.800655] __sys_sendmsg+0x85/0xbf
[21713.800659] do_syscall_64+0x43/0x55
[21713.800663] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1
Fixes: d0eeafad1189 ("ath10k: Clean up peer when sta goes away.")
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220801141930.16794-1-quic_wgong@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath10k/mac.c | 54 ++++++++++++++-------------
1 file changed, 29 insertions(+), 25 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 41ae999c685b..49e2bfc85f1a 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -806,11 +806,36 @@ static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
return 0;
}
+static void ath10k_peer_map_cleanup(struct ath10k *ar, struct ath10k_peer *peer)
+{
+ int peer_id, i;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ for_each_set_bit(peer_id, peer->peer_ids,
+ ATH10K_MAX_NUM_PEER_IDS) {
+ ar->peer_map[peer_id] = NULL;
+ }
+
+ /* Double check that peer is properly un-referenced from
+ * the peer_map
+ */
+ for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
+ if (ar->peer_map[i] == peer) {
+ ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
+ peer->addr, peer, i);
+ ar->peer_map[i] = NULL;
+ }
+ }
+
+ list_del(&peer->list);
+ kfree(peer);
+ ar->num_peers--;
+}
+
static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
{
struct ath10k_peer *peer, *tmp;
- int peer_id;
- int i;
lockdep_assert_held(&ar->conf_mutex);
@@ -822,25 +847,7 @@ static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
peer->addr, vdev_id);
- for_each_set_bit(peer_id, peer->peer_ids,
- ATH10K_MAX_NUM_PEER_IDS) {
- ar->peer_map[peer_id] = NULL;
- }
-
- /* Double check that peer is properly un-referenced from
- * the peer_map
- */
- for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
- if (ar->peer_map[i] == peer) {
- ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
- peer->addr, peer, i);
- ar->peer_map[i] = NULL;
- }
- }
-
- list_del(&peer->list);
- kfree(peer);
- ar->num_peers--;
+ ath10k_peer_map_cleanup(ar, peer);
}
spin_unlock_bh(&ar->data_lock);
}
@@ -6232,10 +6239,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
/* Clean up the peer object as well since we
* must have failed to do this above.
*/
- list_del(&peer->list);
- ar->peer_map[i] = NULL;
- kfree(peer);
- ar->num_peers--;
+ ath10k_peer_map_cleanup(ar, peer);
}
}
spin_unlock_bh(&ar->data_lock);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 083/210] wifi: mac80211: allow bw change during channel switch in mesh
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (81 preceding siblings ...)
2022-10-24 11:29 ` [PATCH 4.14 082/210] wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 084/210] wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse() Greg Kroah-Hartman
` (129 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hari Chandrakanthan, Johannes Berg,
Sasha Levin
From: Hari Chandrakanthan <quic_haric@quicinc.com>
[ Upstream commit 6b75f133fe05c36c52d691ff21545d5757fff721 ]
>From 'IEEE Std 802.11-2020 section 11.8.8.4.1':
The mesh channel switch may be triggered by the need to avoid
interference to a detected radar signal, or to reassign mesh STA
channels to ensure the MBSS connectivity.
A 20/40 MHz MBSS may be changed to a 20 MHz MBSS and a 20 MHz
MBSS may be changed to a 20/40 MHz MBSS.
Since the standard allows the change of bandwidth during
the channel switch in mesh, remove the bandwidth check present in
ieee80211_set_csa_beacon.
Fixes: c6da674aff94 ("{nl,cfg,mac}80211: enable the triggering of CSA frame in mesh")
Signed-off-by: Hari Chandrakanthan <quic_haric@quicinc.com>
Link: https://lore.kernel.org/r/1658903549-21218-1-git-send-email-quic_haric@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/cfg.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index f769b08e6f2a..94293b57f1b2 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3111,9 +3111,6 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
case NL80211_IFTYPE_MESH_POINT: {
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
- if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
- return -EINVAL;
-
/* changes into another band are not supported */
if (sdata->vif.bss_conf.chandef.chan->band !=
params->chandef.chan->band)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 084/210] wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (82 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 083/210] wifi: mac80211: allow bw change during channel switch in mesh Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 085/210] spi: qup: add missing clk_disable_unprepare on error in spi_qup_resume() Greg Kroah-Hartman
` (128 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Jes Sorensen,
Kalle Valo, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 620d5eaeb9059636864bda83ca1c68c20ede34a5 ]
There some bounds checking to ensure that "map_addr" is not out of
bounds before the start of the loop. But the checking needs to be
done as we iterate through the loop because "map_addr" gets larger as
we iterate.
Fixes: 26f1fad29ad9 ("New driver: rtl8xxxu (mac80211)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/Yv8eGLdBslLAk3Ct@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 5cf61710ae2f..5588518daa96 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -1879,13 +1879,6 @@ static int rtl8xxxu_read_efuse(struct rtl8xxxu_priv *priv)
/* We have 8 bits to indicate validity */
map_addr = offset * 8;
- if (map_addr >= EFUSE_MAP_LEN) {
- dev_warn(dev, "%s: Illegal map_addr (%04x), "
- "efuse corrupt!\n",
- __func__, map_addr);
- ret = -EINVAL;
- goto exit;
- }
for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
/* Check word enable condition in the section */
if (word_mask & BIT(i)) {
@@ -1896,6 +1889,13 @@ static int rtl8xxxu_read_efuse(struct rtl8xxxu_priv *priv)
ret = rtl8xxxu_read_efuse8(priv, efuse_addr++, &val8);
if (ret)
goto exit;
+ if (map_addr >= EFUSE_MAP_LEN - 1) {
+ dev_warn(dev, "%s: Illegal map_addr (%04x), "
+ "efuse corrupt!\n",
+ __func__, map_addr);
+ ret = -EINVAL;
+ goto exit;
+ }
priv->efuse_wifi.raw[map_addr++] = val8;
ret = rtl8xxxu_read_efuse8(priv, efuse_addr++, &val8);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 085/210] spi: qup: add missing clk_disable_unprepare on error in spi_qup_resume()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (83 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 084/210] wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 086/210] spi: qup: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime() Greg Kroah-Hartman
` (127 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Xu Qiang, Mark Brown, Sasha Levin
From: Xu Qiang <xuqiang36@huawei.com>
[ Upstream commit 70034320fdc597b8f58b4a43bb547f17c4c5557a ]
Add the missing clk_disable_unprepare() before return
from spi_qup_resume() in the error handling case.
Fixes: 64ff247a978f (“spi: Add Qualcomm QUP SPI controller support”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
Link: https://lore.kernel.org/r/20220825065324.68446-1-xuqiang36@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-qup.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index cb74fd1af205..c5c727274814 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -1219,14 +1219,25 @@ static int spi_qup_resume(struct device *device)
return ret;
ret = clk_prepare_enable(controller->cclk);
- if (ret)
+ if (ret) {
+ clk_disable_unprepare(controller->iclk);
return ret;
+ }
ret = spi_qup_set_state(controller, QUP_STATE_RESET);
if (ret)
- return ret;
+ goto disable_clk;
+
+ ret = spi_master_resume(master);
+ if (ret)
+ goto disable_clk;
- return spi_master_resume(master);
+ return 0;
+
+disable_clk:
+ clk_disable_unprepare(controller->cclk);
+ clk_disable_unprepare(controller->iclk);
+ return ret;
}
#endif /* CONFIG_PM_SLEEP */
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 086/210] spi: qup: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (84 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 085/210] spi: qup: add missing clk_disable_unprepare on error in spi_qup_resume() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 087/210] wifi: rtl8xxxu: Fix skb misuse in TX queue selection Greg Kroah-Hartman
` (126 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Xu Qiang, Mark Brown, Sasha Levin
From: Xu Qiang <xuqiang36@huawei.com>
[ Upstream commit 494a22765ce479c9f8ad181c5d24cffda9f534bb ]
Add the missing clk_disable_unprepare() before return
from spi_qup_pm_resume_runtime() in the error handling case.
Fixes: dae1a7700b34 (“spi: qup: Handle clocks in pm_runtime suspend and resume”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
Link: https://lore.kernel.org/r/20220825065324.68446-2-xuqiang36@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-qup.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index c5c727274814..1ca678bcb527 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -1172,8 +1172,10 @@ static int spi_qup_pm_resume_runtime(struct device *device)
return ret;
ret = clk_prepare_enable(controller->cclk);
- if (ret)
+ if (ret) {
+ clk_disable_unprepare(controller->iclk);
return ret;
+ }
/* Disable clocks auto gaiting */
config = readl_relaxed(controller->base + QUP_CONFIG);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 087/210] wifi: rtl8xxxu: Fix skb misuse in TX queue selection
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (85 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 086/210] spi: qup: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 088/210] wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration Greg Kroah-Hartman
` (125 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bitterblue Smith, Kalle Valo, Sasha Levin
From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
[ Upstream commit edd5747aa12ed61a5ecbfa58d3908623fddbf1e8 ]
rtl8xxxu_queue_select() selects the wrong TX queues because it's
reading memory from the wrong address. It expects to find ieee80211_hdr
at skb->data, but that's not the case after skb_push(). Move the call
to rtl8xxxu_queue_select() before the call to skb_push().
Fixes: 26f1fad29ad9 ("New driver: rtl8xxxu (mac80211)")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/7fa4819a-4f20-b2af-b7a6-8ee01ac49295@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 5588518daa96..7cace68ef3c7 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4955,6 +4955,8 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
if (control && control->sta)
sta = control->sta;
+ queue = rtl8xxxu_queue_select(hw, skb);
+
tx_desc = skb_push(skb, tx_desc_size);
memset(tx_desc, 0, tx_desc_size);
@@ -4967,7 +4969,6 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
tx_desc->txdw0 |= TXDESC_BROADMULTICAST;
- queue = rtl8xxxu_queue_select(hw, skb);
tx_desc->txdw1 = cpu_to_le32(queue << TXDESC_QUEUE_SHIFT);
if (tx_info->control.hw_key) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 088/210] wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (86 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 087/210] wifi: rtl8xxxu: Fix skb misuse in TX queue selection Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 089/210] net: fs_enet: Fix wrong check in do_pd_setup Greg Kroah-Hartman
` (124 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bitterblue Smith, Kalle Valo, Sasha Levin
From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
[ Upstream commit e963a19c64ac0d2f8785d36a27391abd91ac77aa ]
Found by comparing with the vendor driver. Currently this affects
only the RTL8192EU, which is the only gen2 chip with 2 TX paths
supported by this driver. It's unclear what kind of effect the
mistake had in practice, since I don't have any RTL8192EU devices
to test it.
Fixes: e1547c535ede ("rtl8xxxu: First stab at adding IQK calibration for 8723bu parts")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/30a59f3a-cfa9-8379-7af0-78a8f4c77cfd@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 7cace68ef3c7..a287c28b38b5 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -2930,12 +2930,12 @@ bool rtl8xxxu_gen2_simularity_compare(struct rtl8xxxu_priv *priv,
}
if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
- /* path B RX OK */
+ /* path B TX OK */
for (i = 4; i < 6; i++)
result[3][i] = result[c1][i];
}
- if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
+ if (!(simubitmap & 0xc0) && priv->tx_paths > 1) {
/* path B RX OK */
for (i = 6; i < 8; i++)
result[3][i] = result[c1][i];
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 089/210] net: fs_enet: Fix wrong check in do_pd_setup
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (87 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 088/210] wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 090/210] spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe Greg Kroah-Hartman
` (123 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheng Yongjun, Christophe Leroy,
David S. Miller, Sasha Levin
From: Zheng Yongjun <zhengyongjun3@huawei.com>
[ Upstream commit ec3f06b542a960806a81345042e4eee3f8c5dec4 ]
Should check of_iomap return value 'fep->fec.fecp' instead of 'fep->fcc.fccp'
Fixes: 976de6a8c304 ("fs_enet: Be an of_platform device when CONFIG_PPC_CPM_NEW_BINDING is set.")
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/freescale/fs_enet/mac-fec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
index 1fc27c97e3b2..e52231cfcf77 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
@@ -97,7 +97,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
return -EINVAL;
fep->fec.fecp = of_iomap(ofdev->dev.of_node, 0);
- if (!fep->fcc.fccp)
+ if (!fep->fec.fecp)
return -EINVAL;
return 0;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 090/210] spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (88 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 089/210] net: fs_enet: Fix wrong check in do_pd_setup Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 091/210] netfilter: nft_fib: Fix for rpath check with VRF devices Greg Kroah-Hartman
` (122 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Qilong, Mark Brown, Sasha Levin
From: Zhang Qilong <zhangqilong3@huawei.com>
[ Upstream commit 29f65f2171c85a9633daa380df14009a365f42f2 ]
The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context.
Fixes:db91841b58f9a ("spi/omap100k: Convert to runtime PM")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220924121310.78331-4-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-omap-100k.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index 2eeb0fe2eed2..022f5bccef81 100644
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -425,6 +425,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
return status;
err_fck:
+ pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(spi100k->fck);
err_ick:
clk_disable_unprepare(spi100k->ick);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 091/210] netfilter: nft_fib: Fix for rpath check with VRF devices
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (89 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 090/210] spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 092/210] spi: s3c64xx: Fix large transfers with DMA Greg Kroah-Hartman
` (121 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Phil Sutter, Florian Westphal, Sasha Levin
From: Phil Sutter <phil@nwl.cc>
[ Upstream commit 2a8a7c0eaa8747c16aa4a48d573aa920d5c00a5c ]
Analogous to commit b575b24b8eee3 ("netfilter: Fix rpfilter
dropping vrf packets by mistake") but for nftables fib expression:
Add special treatment of VRF devices so that typical reverse path
filtering via 'fib saddr . iif oif' expression works as expected.
Fixes: f6d0cbcf09c50 ("netfilter: nf_tables: add fib expression")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv4/netfilter/nft_fib_ipv4.c | 3 +++
net/ipv6/netfilter/nft_fib_ipv6.c | 6 +++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/net/ipv4/netfilter/nft_fib_ipv4.c b/net/ipv4/netfilter/nft_fib_ipv4.c
index e50976e3c213..3b2e8ac45d4e 100644
--- a/net/ipv4/netfilter/nft_fib_ipv4.c
+++ b/net/ipv4/netfilter/nft_fib_ipv4.c
@@ -95,6 +95,9 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
else
oif = NULL;
+ if (priv->flags & NFTA_FIB_F_IIF)
+ fl4.flowi4_oif = l3mdev_master_ifindex_rcu(oif);
+
if (nft_hook(pkt) == NF_INET_PRE_ROUTING &&
nft_fib_is_loopback(pkt->skb, nft_in(pkt))) {
nft_fib_store_result(dest, priv, pkt,
diff --git a/net/ipv6/netfilter/nft_fib_ipv6.c b/net/ipv6/netfilter/nft_fib_ipv6.c
index fd9a45cbd709..bcc673e433e6 100644
--- a/net/ipv6/netfilter/nft_fib_ipv6.c
+++ b/net/ipv6/netfilter/nft_fib_ipv6.c
@@ -41,6 +41,9 @@ static int nft_fib6_flowi_init(struct flowi6 *fl6, const struct nft_fib *priv,
if (ipv6_addr_type(&fl6->daddr) & IPV6_ADDR_LINKLOCAL) {
lookup_flags |= RT6_LOOKUP_F_IFACE;
fl6->flowi6_oif = get_ifindex(dev ? dev : pkt->skb->dev);
+ } else if ((priv->flags & NFTA_FIB_F_IIF) &&
+ (netif_is_l3_master(dev) || netif_is_l3_slave(dev))) {
+ fl6->flowi6_oif = dev->ifindex;
}
if (ipv6_addr_type(&fl6->saddr) & IPV6_ADDR_UNICAST)
@@ -190,7 +193,8 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs,
if (rt->rt6i_flags & (RTF_REJECT | RTF_ANYCAST | RTF_LOCAL))
goto put_rt_err;
- if (oif && oif != rt->rt6i_idev->dev)
+ if (oif && oif != rt->rt6i_idev->dev &&
+ l3mdev_master_ifindex_rcu(rt->rt6i_idev->dev) != oif->ifindex)
goto put_rt_err;
switch (priv->result) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 092/210] spi: s3c64xx: Fix large transfers with DMA
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (90 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 091/210] netfilter: nft_fib: Fix for rpath check with VRF devices Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 093/210] vhost/vsock: Use kvmalloc/kvfree for larger packets Greg Kroah-Hartman
` (120 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vincent Whitchurch, Mark Brown, Sasha Levin
From: Vincent Whitchurch <vincent.whitchurch@axis.com>
[ Upstream commit 1224e29572f655facfcd850cf0f0a4784f36a903 ]
The COUNT_VALUE in the PACKET_CNT register is 16-bit so the maximum
value is 65535. Asking the driver to transfer a larger size currently
leads to the DMA transfer timing out. Implement ->max_transfer_size()
and have the core split the transfer as needed.
Fixes: 230d42d422e7 ("spi: Add s3c64xx SPI Controller driver")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20220927112117.77599-5-vincent.whitchurch@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-s3c64xx.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 1a6ec226d6e4..0594e214a636 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -94,6 +94,7 @@
#define S3C64XX_SPI_ST_TX_FIFORDY (1<<0)
#define S3C64XX_SPI_PACKET_CNT_EN (1<<16)
+#define S3C64XX_SPI_PACKET_CNT_MASK GENMASK(15, 0)
#define S3C64XX_SPI_PND_TX_UNDERRUN_CLR (1<<4)
#define S3C64XX_SPI_PND_TX_OVERRUN_CLR (1<<3)
@@ -640,6 +641,13 @@ static int s3c64xx_spi_prepare_message(struct spi_master *master,
return 0;
}
+static size_t s3c64xx_spi_max_transfer_size(struct spi_device *spi)
+{
+ struct spi_controller *ctlr = spi->controller;
+
+ return ctlr->can_dma ? S3C64XX_SPI_PACKET_CNT_MASK : SIZE_MAX;
+}
+
static int s3c64xx_spi_transfer_one(struct spi_master *master,
struct spi_device *spi,
struct spi_transfer *xfer)
@@ -1067,6 +1075,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
master->prepare_transfer_hardware = s3c64xx_spi_prepare_transfer;
master->prepare_message = s3c64xx_spi_prepare_message;
master->transfer_one = s3c64xx_spi_transfer_one;
+ master->max_transfer_size = s3c64xx_spi_max_transfer_size;
master->num_chipselect = sci->num_cs;
master->dma_alignment = 8;
master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) |
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 093/210] vhost/vsock: Use kvmalloc/kvfree for larger packets.
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (91 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 092/210] spi: s3c64xx: Fix large transfers with DMA Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 094/210] mISDN: fix use-after-free bugs in l1oip timer handlers Greg Kroah-Hartman
` (119 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Junichi Uekawa, Stefano Garzarella,
Michael S. Tsirkin, Jakub Kicinski, Sasha Levin
From: Junichi Uekawa <uekawa@chromium.org>
[ Upstream commit 0e3f72931fc47bb81686020cc643cde5d9cd0bb8 ]
When copying a large file over sftp over vsock, data size is usually 32kB,
and kmalloc seems to fail to try to allocate 32 32kB regions.
vhost-5837: page allocation failure: order:4, mode:0x24040c0
Call Trace:
[<ffffffffb6a0df64>] dump_stack+0x97/0xdb
[<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138
[<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8
[<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d
[<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19
[<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb
[<ffffffffb66682f3>] __kmalloc+0x177/0x1f7
[<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d
[<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]
[<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost]
[<ffffffffb683ddce>] kthread+0xfd/0x105
[<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost]
[<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
[<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80
[<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
Work around by doing kvmalloc instead.
Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko")
Signed-off-by: Junichi Uekawa <uekawa@chromium.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20220928064538.667678-1-uekawa@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/vhost/vsock.c | 2 +-
net/vmw_vsock/virtio_transport_common.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index c87072217dc0..35f2fbc160a5 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -354,7 +354,7 @@ vhost_vsock_alloc_pkt(struct vhost_virtqueue *vq,
return NULL;
}
- pkt->buf = kmalloc(pkt->len, GFP_KERNEL);
+ pkt->buf = kvmalloc(pkt->len, GFP_KERNEL);
if (!pkt->buf) {
kfree(pkt);
return NULL;
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 349311f6d195..9b8f592897ec 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1075,7 +1075,7 @@ EXPORT_SYMBOL_GPL(virtio_transport_recv_pkt);
void virtio_transport_free_pkt(struct virtio_vsock_pkt *pkt)
{
- kfree(pkt->buf);
+ kvfree(pkt->buf);
kfree(pkt);
}
EXPORT_SYMBOL_GPL(virtio_transport_free_pkt);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 094/210] mISDN: fix use-after-free bugs in l1oip timer handlers
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (92 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 093/210] vhost/vsock: Use kvmalloc/kvfree for larger packets Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 095/210] tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited Greg Kroah-Hartman
` (118 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Duoming Zhou, Leon Romanovsky,
David S. Miller, Sasha Levin
From: Duoming Zhou <duoming@zju.edu.cn>
[ Upstream commit 2568a7e0832ee30b0a351016d03062ab4e0e0a3f ]
The l1oip_cleanup() traverses the l1oip_ilist and calls
release_card() to cleanup module and stack. However,
release_card() calls del_timer() to delete the timers
such as keep_tl and timeout_tl. If the timer handler is
running, the del_timer() will not stop it and result in
UAF bugs. One of the processes is shown below:
(cleanup routine) | (timer handler)
release_card() | l1oip_timeout()
... |
del_timer() | ...
... |
kfree(hc) //FREE |
| hc->timeout_on = 0 //USE
Fix by calling del_timer_sync() in release_card(), which
makes sure the timer handlers have finished before the
resources, such as l1oip and so on, have been deallocated.
What's more, the hc->workq and hc->socket_thread can kick
those timers right back in. We add a bool flag to show
if card is released. Then, check this flag in hc->workq
and hc->socket_thread.
Fixes: 3712b42d4b1b ("Add layer1 over IP support")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/isdn/mISDN/l1oip.h | 1 +
drivers/isdn/mISDN/l1oip_core.c | 13 +++++++------
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/isdn/mISDN/l1oip.h b/drivers/isdn/mISDN/l1oip.h
index 7ea10db20e3a..48133d022812 100644
--- a/drivers/isdn/mISDN/l1oip.h
+++ b/drivers/isdn/mISDN/l1oip.h
@@ -59,6 +59,7 @@ struct l1oip {
int bundle; /* bundle channels in one frm */
int codec; /* codec to use for transmis. */
int limit; /* limit number of bchannels */
+ bool shutdown; /* if card is released */
/* timer */
struct timer_list keep_tl;
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 6be2041248d3..c86f33ed9ef9 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -289,7 +289,7 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
p = frame;
/* restart timer */
- if (time_before(hc->keep_tl.expires, jiffies + 5 * HZ))
+ if (time_before(hc->keep_tl.expires, jiffies + 5 * HZ) && !hc->shutdown)
mod_timer(&hc->keep_tl, jiffies + L1OIP_KEEPALIVE * HZ);
else
hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE * HZ;
@@ -621,7 +621,9 @@ l1oip_socket_parse(struct l1oip *hc, struct sockaddr_in *sin, u8 *buf, int len)
goto multiframe;
/* restart timer */
- if (time_before(hc->timeout_tl.expires, jiffies + 5 * HZ) || !hc->timeout_on) {
+ if ((time_before(hc->timeout_tl.expires, jiffies + 5 * HZ) ||
+ !hc->timeout_on) &&
+ !hc->shutdown) {
hc->timeout_on = 1;
mod_timer(&hc->timeout_tl, jiffies + L1OIP_TIMEOUT * HZ);
} else /* only adjust timer */
@@ -1248,11 +1250,10 @@ release_card(struct l1oip *hc)
{
int ch;
- if (timer_pending(&hc->keep_tl))
- del_timer(&hc->keep_tl);
+ hc->shutdown = true;
- if (timer_pending(&hc->timeout_tl))
- del_timer(&hc->timeout_tl);
+ del_timer_sync(&hc->keep_tl);
+ del_timer_sync(&hc->timeout_tl);
cancel_work_sync(&hc->workq);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 095/210] tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (93 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 094/210] mISDN: fix use-after-free bugs in l1oip timer handlers Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 096/210] net: rds: dont hold sock lock when cancelling work from rds_tcp_reset_callbacks() Greg Kroah-Hartman
` (117 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Neal Cardwell, Kevin(Yudong) Yang,
Yuchung Cheng, Eric Dumazet, David S. Miller, Sasha Levin
From: Neal Cardwell <ncardwell@google.com>
[ Upstream commit f4ce91ce12a7c6ead19b128ffa8cff6e3ded2a14 ]
This commit fixes a bug in the tracking of max_packets_out and
is_cwnd_limited. This bug can cause the connection to fail to remember
that is_cwnd_limited is true, causing the connection to fail to grow
cwnd when it should, causing throughput to be lower than it should be.
The following event sequence is an example that triggers the bug:
(a) The connection is cwnd_limited, but packets_out is not at its
peak due to TSO deferral deciding not to send another skb yet.
In such cases the connection can advance max_packets_seq and set
tp->is_cwnd_limited to true and max_packets_out to a small
number.
(b) Then later in the round trip the connection is pacing-limited (not
cwnd-limited), and packets_out is larger. In such cases the
connection would raise max_packets_out to a bigger number but
(unexpectedly) flip tp->is_cwnd_limited from true to false.
This commit fixes that bug.
One straightforward fix would be to separately track (a) the next
window after max_packets_out reaches a maximum, and (b) the next
window after tp->is_cwnd_limited is set to true. But this would
require consuming an extra u32 sequence number.
Instead, to save space we track only the most important
information. Specifically, we track the strongest available signal of
the degree to which the cwnd is fully utilized:
(1) If the connection is cwnd-limited then we remember that fact for
the current window.
(2) If the connection not cwnd-limited then we track the maximum
number of outstanding packets in the current window.
In particular, note that the new logic cannot trigger the buggy
(a)/(b) sequence above because with the new logic a condition where
tp->packets_out > tp->max_packets_out can only trigger an update of
tp->is_cwnd_limited if tp->is_cwnd_limited is false.
This first showed up in a testing of a BBRv2 dev branch, but this
buggy behavior highlighted a general issue with the
tcp_cwnd_validate() logic that can cause cwnd to fail to increase at
the proper rate for any TCP congestion control, including Reno or
CUBIC.
Fixes: ca8a22634381 ("tcp: make cwnd-limited checks measurement-based, and gentler")
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Kevin(Yudong) Yang <yyd@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/tcp.h | 2 +-
include/net/tcp.h | 5 ++++-
net/ipv4/tcp.c | 2 ++
net/ipv4/tcp_output.c | 19 ++++++++++++-------
4 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 61eb40fef759..b9bc6e3e4ef9 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -245,7 +245,7 @@ struct tcp_sock {
u32 packets_out; /* Packets which are "in flight" */
u32 retrans_out; /* Retransmitted packets out */
u32 max_packets_out; /* max packets_out in last window */
- u32 max_packets_seq; /* right edge of max_packets_out flight */
+ u32 cwnd_usage_seq; /* right edge of cwnd usage tracking flight */
u16 urg_data; /* Saved octet of OOB data and control flags */
u8 ecn_flags; /* ECN status bits. */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5e719f9d60fd..003638f73ffa 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1228,11 +1228,14 @@ static inline bool tcp_is_cwnd_limited(const struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
+ if (tp->is_cwnd_limited)
+ return true;
+
/* If in slow start, ensure cwnd grows to twice what was ACKed. */
if (tcp_in_slow_start(tp))
return tp->snd_cwnd < 2 * tp->max_packets_out;
- return tp->is_cwnd_limited;
+ return false;
}
/* Something is really bad, we could not queue an additional packet,
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index a0fd9ef2d2c6..783d0cd4fcbd 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2366,6 +2366,8 @@ int tcp_disconnect(struct sock *sk, int flags)
icsk->icsk_probes_out = 0;
tp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
tp->snd_cwnd_cnt = 0;
+ tp->is_cwnd_limited = 0;
+ tp->max_packets_out = 0;
tp->window_clamp = 0;
tp->delivered = 0;
if (icsk->icsk_ca_ops->release)
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 6b6dfb08dde4..2a9e55411ac4 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1618,15 +1618,20 @@ static void tcp_cwnd_validate(struct sock *sk, bool is_cwnd_limited)
const struct tcp_congestion_ops *ca_ops = inet_csk(sk)->icsk_ca_ops;
struct tcp_sock *tp = tcp_sk(sk);
- /* Track the maximum number of outstanding packets in each
- * window, and remember whether we were cwnd-limited then.
+ /* Track the strongest available signal of the degree to which the cwnd
+ * is fully utilized. If cwnd-limited then remember that fact for the
+ * current window. If not cwnd-limited then track the maximum number of
+ * outstanding packets in the current window. (If cwnd-limited then we
+ * chose to not update tp->max_packets_out to avoid an extra else
+ * clause with no functional impact.)
*/
- if (!before(tp->snd_una, tp->max_packets_seq) ||
- tp->packets_out > tp->max_packets_out ||
- is_cwnd_limited) {
- tp->max_packets_out = tp->packets_out;
- tp->max_packets_seq = tp->snd_nxt;
+ if (!before(tp->snd_una, tp->cwnd_usage_seq) ||
+ is_cwnd_limited ||
+ (!tp->is_cwnd_limited &&
+ tp->packets_out > tp->max_packets_out)) {
tp->is_cwnd_limited = is_cwnd_limited;
+ tp->max_packets_out = tp->packets_out;
+ tp->cwnd_usage_seq = tp->snd_nxt;
}
if (tcp_is_cwnd_limited(sk)) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 096/210] net: rds: dont hold sock lock when cancelling work from rds_tcp_reset_callbacks()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (94 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 095/210] tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 097/210] bnx2x: fix potential memory leak in bnx2x_tpa_stop() Greg Kroah-Hartman
` (116 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot, Hillf Danton, Tetsuo Handa,
David S. Miller, Sasha Levin
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
[ Upstream commit a91b750fd6629354460282bbf5146c01b05c4859 ]
syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for
commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in
rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section
protected by lock_sock() without realizing that rds_send_xmit() might call
lock_sock().
We don't need to protect cancel_delayed_work_sync() using lock_sock(), for
even if rds_{send,recv}_worker() re-queued this work while __flush_work()
from cancel_delayed_work_sync() was waiting for this work to complete,
retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP
bit.
Link: https://syzkaller.appspot.com/bug?extid=78c55c7bc6f66e53dce2 [1]
Reported-by: syzbot <syzbot+78c55c7bc6f66e53dce2@syzkaller.appspotmail.com>
Co-developed-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+78c55c7bc6f66e53dce2@syzkaller.appspotmail.com>
Fixes: ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/rds/tcp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index 55bae71bf339..ae4901933e6d 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -162,10 +162,10 @@ void rds_tcp_reset_callbacks(struct socket *sock,
*/
atomic_set(&cp->cp_state, RDS_CONN_RESETTING);
wait_event(cp->cp_waitq, !test_bit(RDS_IN_XMIT, &cp->cp_flags));
- lock_sock(osock->sk);
/* reset receive side state for rds_tcp_data_recv() for osock */
cancel_delayed_work_sync(&cp->cp_send_w);
cancel_delayed_work_sync(&cp->cp_recv_w);
+ lock_sock(osock->sk);
if (tc->t_tinc) {
rds_inc_put(&tc->t_tinc->ti_inc);
tc->t_tinc = NULL;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 097/210] bnx2x: fix potential memory leak in bnx2x_tpa_stop()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (95 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 096/210] net: rds: dont hold sock lock when cancelling work from rds_tcp_reset_callbacks() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 098/210] drm/mipi-dsi: Detach devices when removing the host Greg Kroah-Hartman
` (115 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jianglei Nie, David S. Miller, Sasha Levin
From: Jianglei Nie <niejianglei2021@163.com>
[ Upstream commit b43f9acbb8942b05252be83ac25a81cec70cc192 ]
bnx2x_tpa_stop() allocates a memory chunk from new_data with
bnx2x_frag_alloc(). The new_data should be freed when gets some error.
But when "pad + len > fp->rx_buf_size" is true, bnx2x_tpa_stop() returns
without releasing the new_data, which will lead to a memory leak.
We should free the new_data with bnx2x_frag_free() when "pad + len >
fp->rx_buf_size" is true.
Fixes: 07b0f00964def8af9321cfd6c4a7e84f6362f728 ("bnx2x: fix possible panic under memory stress")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 8c111def8185..96478d79243d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -787,6 +787,7 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
BNX2X_ERR("skb_put is about to fail... pad %d len %d rx_buf_size %d\n",
pad, len, fp->rx_buf_size);
bnx2x_panic();
+ bnx2x_frag_free(fp, new_data);
return;
}
#endif
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 098/210] drm/mipi-dsi: Detach devices when removing the host
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (96 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 097/210] bnx2x: fix potential memory leak in bnx2x_tpa_stop() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 099/210] platform/x86: msi-laptop: Fix old-ec check for backlight registering Greg Kroah-Hartman
` (114 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thomas Zimmermann, Maxime Ripard,
Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit 668a8f17b5290d04ef7343636a5588a0692731a1 ]
Whenever the MIPI-DSI host is unregistered, the code of
mipi_dsi_host_unregister() loops over every device currently found on that
bus and will unregister it.
However, it doesn't detach it from the bus first, which leads to all kind
of resource leaks if the host wants to perform some clean up whenever a
device is detached.
Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220711173939.1132294-2-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/drm_mipi_dsi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 6f0de951b75d..bd5e8661f826 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -305,6 +305,7 @@ static int mipi_dsi_remove_device_fn(struct device *dev, void *priv)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
+ mipi_dsi_detach(dsi);
mipi_dsi_device_unregister(dsi);
return 0;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 099/210] platform/x86: msi-laptop: Fix old-ec check for backlight registering
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (97 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 098/210] drm/mipi-dsi: Detach devices when removing the host Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 100/210] platform/x86: msi-laptop: Fix resource cleanup Greg Kroah-Hartman
` (113 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hans de Goede, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit 83ac7a1c2ed5f17caa07cbbc84bad3c05dc3bf22 ]
Commit 2cc6c717799f ("msi-laptop: Port to new backlight interface
selection API") replaced this check:
if (!quirks->old_ec_model || acpi_video_backlight_support())
pr_info("Brightness ignored, ...");
else
do_register();
With:
if (quirks->old_ec_model ||
acpi_video_get_backlight_type() == acpi_backlight_vendor)
do_register();
But since the do_register() part was part of the else branch, the entire
condition should be inverted. So not only the 2 statements on either
side of the || should be inverted, but the || itself should be replaced
with a &&.
In practice this has likely not been an issue because the new-ec models
(old_ec_model==false) likely all support ACPI video backlight control,
making acpi_video_get_backlight_type() return acpi_backlight_video
turning the second part of the || also false when old_ec_model == false.
Fixes: 2cc6c717799f ("msi-laptop: Port to new backlight interface selection API")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220825141336.208597-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/msi-laptop.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index d5bfcc602090..7279390a2d54 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -1061,8 +1061,7 @@ static int __init msi_init(void)
return -EINVAL;
/* Register backlight stuff */
-
- if (quirks->old_ec_model ||
+ if (quirks->old_ec_model &&
acpi_video_get_backlight_type() == acpi_backlight_vendor) {
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 100/210] platform/x86: msi-laptop: Fix resource cleanup
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (98 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 099/210] platform/x86: msi-laptop: Fix old-ec check for backlight registering Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 101/210] drm/bridge: megachips: Fix a null pointer dereference bug Greg Kroah-Hartman
` (112 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hans de Goede, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit 5523632aa10f906dfe2eb714ee748590dc7fc6b1 ]
Fix the input-device not getting free-ed on probe-errors and
fix the msi_touchpad_dwork not getting cancelled on neither
probe-errors nor on remove.
Fixes: 143a4c0284dc ("msi-laptop: send out touchpad on/off key")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220825141336.208597-3-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/msi-laptop.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 7279390a2d54..1ba5f4689df4 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -1129,6 +1129,8 @@ static int __init msi_init(void)
fail_create_group:
if (quirks->load_scm_model) {
i8042_remove_filter(msi_laptop_i8042_filter);
+ cancel_delayed_work_sync(&msi_touchpad_dwork);
+ input_unregister_device(msi_laptop_input_dev);
cancel_delayed_work_sync(&msi_rfkill_dwork);
cancel_work_sync(&msi_rfkill_work);
rfkill_cleanup();
@@ -1149,6 +1151,7 @@ static void __exit msi_cleanup(void)
{
if (quirks->load_scm_model) {
i8042_remove_filter(msi_laptop_i8042_filter);
+ cancel_delayed_work_sync(&msi_touchpad_dwork);
input_unregister_device(msi_laptop_input_dev);
cancel_delayed_work_sync(&msi_rfkill_dwork);
cancel_work_sync(&msi_rfkill_work);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 101/210] drm/bridge: megachips: Fix a null pointer dereference bug
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (99 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 100/210] platform/x86: msi-laptop: Fix resource cleanup Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 102/210] mmc: au1xmmc: Fix an error handling path in au1xmmc_probe() Greg Kroah-Hartman
` (111 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheyu Ma, Robert Foss, Sasha Levin
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit 1ff673333d46d2c1b053ebd0c1c7c7c79e36943e ]
When removing the module we will get the following warning:
[ 31.911505] i2c-core: driver [stdp2690-ge-b850v3-fw] unregistered
[ 31.912484] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
[ 31.913338] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
[ 31.915280] RIP: 0010:drm_bridge_remove+0x97/0x130
[ 31.921825] Call Trace:
[ 31.922533] stdp4028_ge_b850v3_fw_remove+0x34/0x60 [megachips_stdpxxxx_ge_b850v3_fw]
[ 31.923139] i2c_device_remove+0x181/0x1f0
The two bridges (stdp2690, stdp4028) do not probe at the same time, so
the driver does not call ge_b850v3_resgiter() when probing, causing the
driver to try to remove the object that has not been initialized.
Fix this by checking whether both the bridges are probed.
Fixes: 11632d4aa2b3 ("drm/bridge: megachips: Ensure both bridges are probed before registration")
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830073450.1897020-1-zheyuma97@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index 4ab7b034bfec..313c80f29972 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -290,7 +290,9 @@ static void ge_b850v3_lvds_remove(void)
* This check is to avoid both the drivers
* removing the bridge in their remove() function
*/
- if (!ge_b850v3_lvds_ptr)
+ if (!ge_b850v3_lvds_ptr ||
+ !ge_b850v3_lvds_ptr->stdp2690_i2c ||
+ !ge_b850v3_lvds_ptr->stdp4028_i2c)
goto out;
drm_bridge_remove(&ge_b850v3_lvds_ptr->bridge);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 102/210] mmc: au1xmmc: Fix an error handling path in au1xmmc_probe()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (100 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 101/210] drm/bridge: megachips: Fix a null pointer dereference bug Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 103/210] ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API Greg Kroah-Hartman
` (110 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Ulf Hansson, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 5cbedf52608cc3cbc1c2a9a861fb671620427a20 ]
If clk_prepare_enable() fails, there is no point in calling
clk_disable_unprepare() in the error handling path.
Move the out_clk label at the right place.
Fixes: b6507596dfd6 ("MIPS: Alchemy: au1xmmc: use clk framework")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/21d99886d07fa7fcbec74992657dabad98c935c4.1661412818.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/host/au1xmmc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index ed77fbfa4774..a1667339e21d 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -1114,8 +1114,9 @@ static int au1xmmc_probe(struct platform_device *pdev)
if (host->platdata && host->platdata->cd_setup &&
!(mmc->caps & MMC_CAP_NEEDS_POLL))
host->platdata->cd_setup(mmc, 0);
-out_clk:
+
clk_disable_unprepare(host->clk);
+out_clk:
clk_put(host->clk);
out_irq:
free_irq(host->irq, host);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 103/210] ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (101 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 102/210] mmc: au1xmmc: Fix an error handling path in au1xmmc_probe() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 104/210] ALSA: dmaengine: increment buffer pointer atomically Greg Kroah-Hartman
` (109 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Mark Brown, Sasha Levin,
Kelin Wang
From: Liang He <windhl@126.com>
[ Upstream commit bfb735a3ceff0bab6473bac275da96f9b2a06dec ]
In eukrea_tlv320_probe(), we need to hold the reference returned
from of_find_compatible_node() which has increased the refcount
and then call of_node_put() with it when done.
Fixes: 66f232908de2 ("ASoC: eukrea-tlv320: Add DT support.")
Co-authored-by: Kelin Wang <wangkelin2023@163.com>
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220914134354.3995587-1-windhl@126.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/fsl/eukrea-tlv320.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c
index 4c6f19ef98b2..04ef886f71b2 100644
--- a/sound/soc/fsl/eukrea-tlv320.c
+++ b/sound/soc/fsl/eukrea-tlv320.c
@@ -88,7 +88,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
int ret;
int int_port = 0, ext_port;
struct device_node *np = pdev->dev.of_node;
- struct device_node *ssi_np = NULL, *codec_np = NULL;
+ struct device_node *ssi_np = NULL, *codec_np = NULL, *tmp_np = NULL;
eukrea_tlv320.dev = &pdev->dev;
if (np) {
@@ -145,7 +145,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
}
if (machine_is_eukrea_cpuimx27() ||
- of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
+ (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux"))) {
imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_TFSDIR |
@@ -160,10 +160,11 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
);
+ of_node_put(tmp_np);
} else if (machine_is_eukrea_cpuimx25sd() ||
machine_is_eukrea_cpuimx35sd() ||
machine_is_eukrea_cpuimx51sd() ||
- of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
+ (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux"))) {
if (!np)
ext_port = machine_is_eukrea_cpuimx25sd() ?
4 : 3;
@@ -180,6 +181,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
IMX_AUDMUX_V2_PTCR_SYN,
IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
);
+ of_node_put(tmp_np);
} else {
if (np) {
/* The eukrea,asoc-tlv320 driver was explicitly
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 104/210] ALSA: dmaengine: increment buffer pointer atomically
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (102 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 103/210] ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 105/210] mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe() Greg Kroah-Hartman
` (108 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andreas Pape, Eugeniu Rosca,
Takashi Iwai, Sasha Levin
From: Andreas Pape <apape@de.adit-jv.com>
[ Upstream commit d1c442019594692c64a70a86ad88eb5b6db92216 ]
Setting pointer and afterwards checking for wraparound leads
to the possibility of returning the inconsistent pointer position.
This patch increments buffer pointer atomically to avoid this issue.
Fixes: e7f73a1613567a ("ASoC: Add dmaengine PCM helper functions")
Signed-off-by: Andreas Pape <apape@de.adit-jv.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Link: https://lore.kernel.org/r/1664211493-11789-1-git-send-email-erosca@de.adit-jv.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/core/pcm_dmaengine.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c
index 8eb58c709b14..6f6da1128edc 100644
--- a/sound/core/pcm_dmaengine.c
+++ b/sound/core/pcm_dmaengine.c
@@ -139,12 +139,14 @@ EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_set_config_from_dai_data);
static void dmaengine_pcm_dma_complete(void *arg)
{
+ unsigned int new_pos;
struct snd_pcm_substream *substream = arg;
struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
- prtd->pos += snd_pcm_lib_period_bytes(substream);
- if (prtd->pos >= snd_pcm_lib_buffer_bytes(substream))
- prtd->pos = 0;
+ new_pos = prtd->pos + snd_pcm_lib_period_bytes(substream);
+ if (new_pos >= snd_pcm_lib_buffer_bytes(substream))
+ new_pos = 0;
+ prtd->pos = new_pos;
snd_pcm_period_elapsed(substream);
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 105/210] mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (103 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 104/210] ALSA: dmaengine: increment buffer pointer atomically Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 106/210] memory: of: Fix refcount leak bug in of_get_ddr_timings() Greg Kroah-Hartman
` (107 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Dan Carpenter,
Ulf Hansson, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit cb58188ad90a61784a56a64f5107faaf2ad323e7 ]
A dma_free_coherent() call is missing in the error handling path of the
probe, as already done in the remove function.
Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/53fc6ffa5d1c428fefeae7d313cf4a669c3a1e98.1663873255.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/host/wmt-sdmmc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index fd30ac7da5e5..85cad20b2ae8 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -853,7 +853,7 @@ static int wmt_mci_probe(struct platform_device *pdev)
if (IS_ERR(priv->clk_sdmmc)) {
dev_err(&pdev->dev, "Error getting clock\n");
ret = PTR_ERR(priv->clk_sdmmc);
- goto fail5;
+ goto fail5_and_a_half;
}
ret = clk_prepare_enable(priv->clk_sdmmc);
@@ -870,6 +870,9 @@ static int wmt_mci_probe(struct platform_device *pdev)
return 0;
fail6:
clk_put(priv->clk_sdmmc);
+fail5_and_a_half:
+ dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16,
+ priv->dma_desc_buffer, priv->dma_desc_device_addr);
fail5:
free_irq(dma_irq, priv);
fail4:
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 106/210] memory: of: Fix refcount leak bug in of_get_ddr_timings()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (104 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 105/210] mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 107/210] soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe() Greg Kroah-Hartman
` (106 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Krzysztof Kozlowski, Sasha Levin
From: Liang He <windhl@126.com>
[ Upstream commit 05215fb32010d4afb68fbdbb4d237df6e2d4567b ]
We should add the of_node_put() when breaking out of
for_each_child_of_node() as it will automatically increase
and decrease the refcount.
Fixes: e6b42eb6a66c ("memory: emif: add device tree support to emif driver")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220719085640.1210583-1-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/memory/of_memory.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/memory/of_memory.c b/drivers/memory/of_memory.c
index 568f05ed961a..36517b7d093e 100644
--- a/drivers/memory/of_memory.c
+++ b/drivers/memory/of_memory.c
@@ -135,6 +135,7 @@ const struct lpddr2_timings *of_get_ddr_timings(struct device_node *np_ddr,
for_each_child_of_node(np_ddr, np_tim) {
if (of_device_is_compatible(np_tim, tim_compat)) {
if (of_do_get_timings(np_tim, &timings[i])) {
+ of_node_put(np_tim);
devm_kfree(dev, timings);
goto default_timings;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 107/210] soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (105 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 106/210] memory: of: Fix refcount leak bug in of_get_ddr_timings() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 108/210] soc: qcom: smem_state: Add refcounting for the state->of_node Greg Kroah-Hartman
` (105 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Bjorn Andersson, Sasha Levin
From: Liang He <windhl@126.com>
[ Upstream commit af8f6f39b8afd772fda4f8e61823ef8c021bf382 ]
There are two refcount leak bugs in qcom_smsm_probe():
(1) The 'local_node' is escaped out from for_each_child_of_node() as
the break of iteration, we should call of_node_put() for it in error
path or when it is not used anymore.
(2) The 'node' is escaped out from for_each_available_child_of_node()
as the 'goto', we should call of_node_put() for it in goto target.
Fixes: c97c4090ff72 ("soc: qcom: smsm: Add driver for Qualcomm SMSM")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220721135217.1301039-1-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soc/qcom/smsm.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/drivers/soc/qcom/smsm.c b/drivers/soc/qcom/smsm.c
index 5304529b41c9..a8a1dc49519e 100644
--- a/drivers/soc/qcom/smsm.c
+++ b/drivers/soc/qcom/smsm.c
@@ -519,7 +519,7 @@ static int qcom_smsm_probe(struct platform_device *pdev)
for (id = 0; id < smsm->num_hosts; id++) {
ret = smsm_parse_ipc(smsm, id);
if (ret < 0)
- return ret;
+ goto out_put;
}
/* Acquire the main SMSM state vector */
@@ -527,13 +527,14 @@ static int qcom_smsm_probe(struct platform_device *pdev)
smsm->num_entries * sizeof(u32));
if (ret < 0 && ret != -EEXIST) {
dev_err(&pdev->dev, "unable to allocate shared state entry\n");
- return ret;
+ goto out_put;
}
states = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_SMSM_SHARED_STATE, NULL);
if (IS_ERR(states)) {
dev_err(&pdev->dev, "Unable to acquire shared state entry\n");
- return PTR_ERR(states);
+ ret = PTR_ERR(states);
+ goto out_put;
}
/* Acquire the list of interrupt mask vectors */
@@ -541,13 +542,14 @@ static int qcom_smsm_probe(struct platform_device *pdev)
ret = qcom_smem_alloc(QCOM_SMEM_HOST_ANY, SMEM_SMSM_CPU_INTR_MASK, size);
if (ret < 0 && ret != -EEXIST) {
dev_err(&pdev->dev, "unable to allocate smsm interrupt mask\n");
- return ret;
+ goto out_put;
}
intr_mask = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_SMSM_CPU_INTR_MASK, NULL);
if (IS_ERR(intr_mask)) {
dev_err(&pdev->dev, "unable to acquire shared memory interrupt mask\n");
- return PTR_ERR(intr_mask);
+ ret = PTR_ERR(intr_mask);
+ goto out_put;
}
/* Setup the reference to the local state bits */
@@ -558,7 +560,8 @@ static int qcom_smsm_probe(struct platform_device *pdev)
smsm->state = qcom_smem_state_register(local_node, &smsm_state_ops, smsm);
if (IS_ERR(smsm->state)) {
dev_err(smsm->dev, "failed to register qcom_smem_state\n");
- return PTR_ERR(smsm->state);
+ ret = PTR_ERR(smsm->state);
+ goto out_put;
}
/* Register handlers for remote processor entries of interest. */
@@ -588,16 +591,19 @@ static int qcom_smsm_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, smsm);
+ of_node_put(local_node);
return 0;
unwind_interfaces:
+ of_node_put(node);
for (id = 0; id < smsm->num_entries; id++)
if (smsm->entries[id].domain)
irq_domain_remove(smsm->entries[id].domain);
qcom_smem_state_unregister(smsm->state);
-
+out_put:
+ of_node_put(local_node);
return ret;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 108/210] soc: qcom: smem_state: Add refcounting for the state->of_node
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (106 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 107/210] soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 109/210] ARM: dts: turris-omnia: Fix mpp26 pin name and comment Greg Kroah-Hartman
` (104 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Bjorn Andersson, Sasha Levin
From: Liang He <windhl@126.com>
[ Upstream commit 90681f53b9381c23ff7762a3b13826d620c272de ]
In qcom_smem_state_register() and qcom_smem_state_release(), we
should better use of_node_get() and of_node_put() for the reference
creation and destruction of 'device_node'.
Fixes: 9460ae2ff308 ("soc: qcom: Introduce common SMEM state machine code")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220721135217.1301039-2-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soc/qcom/smem_state.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/smem_state.c b/drivers/soc/qcom/smem_state.c
index d5437ca76ed9..1502cf037a6b 100644
--- a/drivers/soc/qcom/smem_state.c
+++ b/drivers/soc/qcom/smem_state.c
@@ -144,6 +144,7 @@ static void qcom_smem_state_release(struct kref *ref)
struct qcom_smem_state *state = container_of(ref, struct qcom_smem_state, refcount);
list_del(&state->list);
+ of_node_put(state->of_node);
kfree(state);
}
@@ -177,7 +178,7 @@ struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
kref_init(&state->refcount);
- state->of_node = of_node;
+ state->of_node = of_node_get(of_node);
state->ops = *ops;
state->priv = priv;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 109/210] ARM: dts: turris-omnia: Fix mpp26 pin name and comment
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (107 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 108/210] soc: qcom: smem_state: Add refcounting for the state->of_node Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 110/210] ARM: dts: kirkwood: lsxl: fix serial line Greg Kroah-Hartman
` (103 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Marek Behún, Gregory CLEMENT,
Sasha Levin
From: Marek Behún <kabel@kernel.org>
[ Upstream commit 49e93898f0dc177e645c22d0664813567fd9ec00 ]
There is a bug in Turris Omnia's schematics, whereupon the MPP[26] pin,
which is routed to CN11 pin header, is documented as SPI CS1, but
MPP[26] pin does not support this function. Instead it controls chip
select 2 if in "spi0" mode.
Fix the name of the pin node in pinctrl node and fix the comment in SPI
node.
Fixes: 26ca8b52d6e1 ("ARM: dts: add support for Turris Omnia")
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/armada-385-turris-omnia.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts
index 6c2d96cbd7cd..00f70c2fab24 100644
--- a/arch/arm/boot/dts/armada-385-turris-omnia.dts
+++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts
@@ -340,7 +340,7 @@
marvell,function = "spi0";
};
- spi0cs1_pins: spi0cs1-pins {
+ spi0cs2_pins: spi0cs2-pins {
marvell,pins = "mpp26";
marvell,function = "spi0";
};
@@ -375,7 +375,7 @@
};
};
- /* MISO, MOSI, SCLK and CS1 are routed to pin header CN11 */
+ /* MISO, MOSI, SCLK and CS2 are routed to pin header CN11 */
};
&uart0 {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 110/210] ARM: dts: kirkwood: lsxl: fix serial line
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (108 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 109/210] ARM: dts: turris-omnia: Fix mpp26 pin name and comment Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 111/210] ARM: dts: kirkwood: lsxl: remove first ethernet port Greg Kroah-Hartman
` (102 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Walle, Andrew Lunn,
Gregory CLEMENT, Sasha Levin
From: Michael Walle <michael@walle.cc>
[ Upstream commit 04eabc6ac10fda9424606d9a7ab6ab9a5d95350a ]
Commit 327e15428977 ("ARM: dts: kirkwood: consolidate common pinctrl
settings") unknowingly broke the serial output on this board. Before
this commit, the pinmux was still configured by the bootloader and the
kernel didn't reconfigured it again. This was an oversight by the
initial board support where the pinmux for the serial line was never
configured by the kernel. But with this commit, the serial line will be
reconfigured to the wrong pins. This is especially confusing, because
the output still works, but the input doesn't. Presumingly, the input is
reconfigured to MPP10, but the output is connected to both MPP11 and
MPP5.
Override the pinmux in the board device tree.
Fixes: 327e15428977 ("ARM: dts: kirkwood: consolidate common pinctrl settings")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/kirkwood-lsxl.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/kirkwood-lsxl.dtsi b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
index 7b151acb9984..321a40a98ed2 100644
--- a/arch/arm/boot/dts/kirkwood-lsxl.dtsi
+++ b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
@@ -10,6 +10,11 @@
ocp@f1000000 {
pinctrl: pin-controller@10000 {
+ /* Non-default UART pins */
+ pmx_uart0: pmx-uart0 {
+ marvell,pins = "mpp4", "mpp5";
+ };
+
pmx_power_hdd: pmx-power-hdd {
marvell,pins = "mpp10";
marvell,function = "gpo";
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 111/210] ARM: dts: kirkwood: lsxl: remove first ethernet port
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (109 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 110/210] ARM: dts: kirkwood: lsxl: fix serial line Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 112/210] ARM: Drop CMDLINE_* dependency on ATAGS Greg Kroah-Hartman
` (101 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Walle, Andrew Lunn,
Gregory CLEMENT, Sasha Levin
From: Michael Walle <michael@walle.cc>
[ Upstream commit 2d528eda7c96ce5c70f895854ecd5684bd5d80b9 ]
Both the Linkstation LS-CHLv2 and the LS-XHL have only one ethernet
port. This has always been wrong, i.e. the board code used to set up
both ports, but the driver will play nice and return -ENODEV if the
assiciated PHY is not found. Nevertheless, it is wrong. Remove it.
Fixes: 876e23333511 ("ARM: kirkwood: add gigabit ethernet and mvmdio device tree nodes")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/kirkwood-lsxl.dtsi | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/arch/arm/boot/dts/kirkwood-lsxl.dtsi b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
index 321a40a98ed2..88b70ba1c8fe 100644
--- a/arch/arm/boot/dts/kirkwood-lsxl.dtsi
+++ b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
@@ -218,22 +218,11 @@
&mdio {
status = "okay";
- ethphy0: ethernet-phy@0 {
- reg = <0>;
- };
-
ethphy1: ethernet-phy@8 {
reg = <8>;
};
};
-ð0 {
- status = "okay";
- ethernet0-port@0 {
- phy-handle = <ðphy0>;
- };
-};
-
ð1 {
status = "okay";
ethernet1-port@0 {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 112/210] ARM: Drop CMDLINE_* dependency on ATAGS
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (110 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 111/210] ARM: dts: kirkwood: lsxl: remove first ethernet port Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 113/210] ARM: dts: exynos: fix polarity of VBUS GPIO of Origen Greg Kroah-Hartman
` (100 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Geert Uytterhoeven, Ard Biesheuvel,
Arnd Bergmann, Sasha Levin
From: Geert Uytterhoeven <geert+renesas@glider.be>
[ Upstream commit 136f4b1ec7c962ee37a787e095fd37b058d72bd3 ]
On arm32, the configuration options to specify the kernel command line
type depend on ATAGS. However, the actual CMDLINE cofiguration option
does not depend on ATAGS, and the code that handles this is not specific
to ATAGS (see drivers/of/fdt.c:early_init_dt_scan_chosen()).
Hence users who desire to override the kernel command line on arm32 must
enable support for ATAGS, even on a pure-DT system. Other architectures
(arm64, loongarch, microblaze, nios2, powerpc, and riscv) do not impose
such a restriction.
Hence drop the dependency on ATAGS.
Fixes: bd51e2f595580fb6 ("ARM: 7506/1: allow for ATAGS to be configured out when DT support is selected")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/Kconfig | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3793642e0223..6fe7085cf7bd 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1951,7 +1951,6 @@ config CMDLINE
choice
prompt "Kernel command line type" if CMDLINE != ""
default CMDLINE_FROM_BOOTLOADER
- depends on ATAGS
config CMDLINE_FROM_BOOTLOADER
bool "Use bootloader kernel arguments if available"
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 113/210] ARM: dts: exynos: fix polarity of VBUS GPIO of Origen
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (111 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 112/210] ARM: Drop CMDLINE_* dependency on ATAGS Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 114/210] iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX Greg Kroah-Hartman
` (99 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dmitry Torokhov, Krzysztof Kozlowski,
Sasha Levin
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[ Upstream commit a08137bd1e0a7ce951dce9ce4a83e39d379b6e1b ]
EHCI Oxynos (drivers/usb/host/ehci-exynos.c) drives VBUS GPIO high when
trying to power up the bus, therefore the GPIO in DTS must be marked as
"active high". This will be important when EHCI driver is converted to
gpiod API that respects declared polarities.
Fixes: 4e8991def565 ("ARM: dts: exynos: Enable AX88760 USB hub on Origen board")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20220927220504.3744878-1-dmitry.torokhov@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/exynos4412-origen.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 8a89eb893d64..0224e1da66c5 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -90,7 +90,7 @@
};
&ehci {
- samsung,vbus-gpio = <&gpx3 5 1>;
+ samsung,vbus-gpio = <&gpx3 5 GPIO_ACTIVE_HIGH>;
status = "okay";
port@1{
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 114/210] iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (112 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 113/210] ARM: dts: exynos: fix polarity of VBUS GPIO of Origen Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 115/210] iio: inkern: only release the device node when done with it Greg Kroah-Hartman
` (98 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Claudiu Beznea, Jonathan Cameron,
Sasha Levin
From: Claudiu Beznea <claudiu.beznea@microchip.com>
[ Upstream commit bb73d5d9164c57c4bb916739a98e5cd8e0a5ed8c ]
All ADC HW versions handled by this driver (SAMA5D2, SAM9X60, SAMA7G5)
have MR.TRACKTIM on 4 bits. Fix AT91_SAMA5D2_MR_TRACKTIM_MAX to reflect
this.
Fixes: 27e177190891 ("iio:adc:at91_adc8xx: introduce new atmel adc driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-2-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/at91-sama5d2_adc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index 34639ee2d2ce..e015b86be6b0 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -79,7 +79,7 @@
#define AT91_SAMA5D2_MR_ANACH BIT(23)
/* Tracking Time */
#define AT91_SAMA5D2_MR_TRACKTIM(v) ((v) << 24)
-#define AT91_SAMA5D2_MR_TRACKTIM_MAX 0xff
+#define AT91_SAMA5D2_MR_TRACKTIM_MAX 0xf
/* Transfer Time */
#define AT91_SAMA5D2_MR_TRANSFER(v) ((v) << 28)
#define AT91_SAMA5D2_MR_TRANSFER_MAX 0x3
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 115/210] iio: inkern: only release the device node when done with it
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (113 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 114/210] iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 116/210] iio: ABI: Fix wrong format of differential capacitance channel ABI Greg Kroah-Hartman
` (97 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nuno Sá, Jonathan Cameron, Sasha Levin
From: Nuno Sá <nuno.sa@analog.com>
[ Upstream commit 79c3e84874c7d14f04ad58313b64955a0d2e9437 ]
'of_node_put()' can potentially release the memory pointed to by
'iiospec.np' which would leave us with an invalid pointer (and we would
still pass it in 'of_xlate()'). Note that it is not guaranteed for the
of_node lifespan to be attached to the device (to which is attached)
lifespan so that there is (even though very unlikely) the possibility
for the node to be freed while the device is still around. Thus, as there
are indeed some of_xlate users which do access the node, a race is indeed
possible.
As such, we can only release the node after we are done with it.
Fixes: 17d82b47a215d ("iio: Add OF support")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220715122903.332535-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/inkern.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index f12bad60a581..599069b4fe5d 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -139,9 +139,10 @@ static int __of_iio_channel_get(struct iio_channel *channel,
idev = bus_find_device(&iio_bus_type, NULL, iiospec.np,
iio_dev_node_match);
- of_node_put(iiospec.np);
- if (idev == NULL)
+ if (idev == NULL) {
+ of_node_put(iiospec.np);
return -EPROBE_DEFER;
+ }
indio_dev = dev_to_iio_dev(idev);
channel->indio_dev = indio_dev;
@@ -149,6 +150,7 @@ static int __of_iio_channel_get(struct iio_channel *channel,
index = indio_dev->info->of_xlate(indio_dev, &iiospec);
else
index = __of_iio_simple_xlate(indio_dev, &iiospec);
+ of_node_put(iiospec.np);
if (index < 0)
goto err_put;
channel->channel = &indio_dev->channels[index];
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 116/210] iio: ABI: Fix wrong format of differential capacitance channel ABI.
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (114 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 115/210] iio: inkern: only release the device node when done with it Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 117/210] clk: oxnas: Hold reference returned by of_get_parent() Greg Kroah-Hartman
` (96 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 1efc41035f1841acf0af2bab153158e27ce94f10 ]
in_ only occurs once in these attributes.
Fixes: 0baf29d658c7 ("staging:iio:documentation Add abi docs for capacitance adcs.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-3-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/ABI/testing/sysfs-bus-iio | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index e21e2ca3e4f9..c6573a733a68 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -135,7 +135,7 @@ Description:
Raw capacitance measurement from channel Y. Units after
application of scale and offset are nanofarads.
-What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
+What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_raw
KernelVersion: 3.2
Contact: linux-iio@vger.kernel.org
Description:
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 117/210] clk: oxnas: Hold reference returned by of_get_parent()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (115 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 116/210] iio: ABI: Fix wrong format of differential capacitance channel ABI Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 118/210] clk: tegra: Fix refcount leak in tegra210_clock_init Greg Kroah-Hartman
` (95 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Stephen Boyd, Sasha Levin
From: Liang He <windhl@126.com>
[ Upstream commit 1d6aa08c54cd0e005210ab8e3b1e92ede70f8a4f ]
In oxnas_stdclk_probe(), we need to hold the reference returned by
of_get_parent() and use it to call of_node_put() for refcount
balance.
Fixes: 0bbd72b4c64f ("clk: Add Oxford Semiconductor OXNAS Standard Clocks")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220628143155.170550-1-windhl@126.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/clk-oxnas.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/clk-oxnas.c b/drivers/clk/clk-oxnas.c
index e51e0023fc6e..a92bf71f03ac 100644
--- a/drivers/clk/clk-oxnas.c
+++ b/drivers/clk/clk-oxnas.c
@@ -218,7 +218,7 @@ static const struct of_device_id oxnas_stdclk_dt_ids[] = {
static int oxnas_stdclk_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = pdev->dev.of_node, *parent_np;
const struct oxnas_stdclk_data *data;
const struct of_device_id *id;
struct regmap *regmap;
@@ -230,7 +230,9 @@ static int oxnas_stdclk_probe(struct platform_device *pdev)
return -ENODEV;
data = id->data;
- regmap = syscon_node_to_regmap(of_get_parent(np));
+ parent_np = of_get_parent(np);
+ regmap = syscon_node_to_regmap(parent_np);
+ of_node_put(parent_np);
if (IS_ERR(regmap)) {
dev_err(&pdev->dev, "failed to have parent regmap\n");
return PTR_ERR(regmap);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 118/210] clk: tegra: Fix refcount leak in tegra210_clock_init
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (116 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 117/210] clk: oxnas: Hold reference returned by of_get_parent() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 119/210] clk: tegra: Fix refcount leak in tegra114_clock_init Greg Kroah-Hartman
` (94 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Stephen Boyd, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit 56c78cb1f00a9dde8cd762131ce8f4c5eb046fbb ]
of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: 6b301a059eb2 ("clk: tegra: Add support for Tegra210 clocks")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220523142608.65074-1-linmq006@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/tegra/clk-tegra210.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index cb2be154db3b..8aa400d04c6b 100644
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -3130,6 +3130,7 @@ static void __init tegra210_clock_init(struct device_node *np)
}
pmc_base = of_iomap(node, 0);
+ of_node_put(node);
if (!pmc_base) {
pr_err("Can't map pmc registers\n");
WARN_ON(1);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 119/210] clk: tegra: Fix refcount leak in tegra114_clock_init
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (117 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 118/210] clk: tegra: Fix refcount leak in tegra210_clock_init Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 120/210] clk: tegra20: Fix refcount leak in tegra20_clock_init Greg Kroah-Hartman
` (93 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Stephen Boyd, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit db16a80c76ea395766913082b1e3f939dde29b2c ]
of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: 2cb5efefd6f7 ("clk: tegra: Implement clocks for Tegra114")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220523143834.7587-1-linmq006@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/tegra/clk-tegra114.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c
index fd1a99c05c2d..8c071a8fc710 100644
--- a/drivers/clk/tegra/clk-tegra114.c
+++ b/drivers/clk/tegra/clk-tegra114.c
@@ -1343,6 +1343,7 @@ static void __init tegra114_clock_init(struct device_node *np)
}
pmc_base = of_iomap(node, 0);
+ of_node_put(node);
if (!pmc_base) {
pr_err("Can't map pmc registers\n");
WARN_ON(1);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 120/210] clk: tegra20: Fix refcount leak in tegra20_clock_init
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (118 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 119/210] clk: tegra: Fix refcount leak in tegra114_clock_init Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 121/210] HSI: omap_ssi: Fix refcount leak in ssi_probe Greg Kroah-Hartman
` (92 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Stephen Boyd, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit 4e343bafe03ff68a62f48f8235cf98f2c685468b ]
of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: 37c26a906527 ("clk: tegra: add clock support for Tegra20")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220523152811.19692-1-linmq006@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/tegra/clk-tegra20.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index 837e5cbd60e9..4c9038e73888 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -1101,6 +1101,7 @@ static void __init tegra20_clock_init(struct device_node *np)
}
pmc_base = of_iomap(node, 0);
+ of_node_put(node);
if (!pmc_base) {
pr_err("Can't map pmc registers\n");
BUG();
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 121/210] HSI: omap_ssi: Fix refcount leak in ssi_probe
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (119 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 120/210] clk: tegra20: Fix refcount leak in tegra20_clock_init Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 122/210] HSI: omap_ssi_port: Fix dma_map_sg error check Greg Kroah-Hartman
` (91 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Sebastian Reichel, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit 9a2ea132df860177b33c9fd421b26c4e9a0a9396 ]
When returning or breaking early from a
for_each_available_child_of_node() loop, we need to explicitly call
of_node_put() on the child node to possibly release the node.
Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hsi/controllers/omap_ssi_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hsi/controllers/omap_ssi_core.c b/drivers/hsi/controllers/omap_ssi_core.c
index 3554443a609c..6e9d88d9d471 100644
--- a/drivers/hsi/controllers/omap_ssi_core.c
+++ b/drivers/hsi/controllers/omap_ssi_core.c
@@ -560,6 +560,7 @@ static int ssi_probe(struct platform_device *pd)
if (!childpdev) {
err = -ENODEV;
dev_err(&pd->dev, "failed to create ssi controller port\n");
+ of_node_put(child);
goto out3;
}
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 122/210] HSI: omap_ssi_port: Fix dma_map_sg error check
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (120 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 121/210] HSI: omap_ssi: Fix refcount leak in ssi_probe Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 123/210] media: exynos4-is: fimc-is: Add of_node_put() when breaking out of loop Greg Kroah-Hartman
` (90 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sebastian Reichel, Jack Wang,
Sebastian Reichel, Sasha Levin
From: Jack Wang <jinpu.wang@ionos.com>
[ Upstream commit 551e325bbd3fb8b5a686ac1e6cf76e5641461cf2 ]
dma_map_sg return 0 on error, in case of error return -EIO
to caller.
Cc: Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org (open list)
Fixes: b209e047bc74 ("HSI: Introduce OMAP SSI driver")
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hsi/controllers/omap_ssi_port.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index 7765de2f1ef1..68619dd6dfc1 100644
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -252,10 +252,10 @@ static int ssi_start_dma(struct hsi_msg *msg, int lch)
if (msg->ttype == HSI_MSG_READ) {
err = dma_map_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents,
DMA_FROM_DEVICE);
- if (err < 0) {
+ if (!err) {
dev_dbg(&ssi->device, "DMA map SG failed !\n");
pm_runtime_put_autosuspend(omap_port->pdev);
- return err;
+ return -EIO;
}
csdp = SSI_DST_BURST_4x32_BIT | SSI_DST_MEMORY_PORT |
SSI_SRC_SINGLE_ACCESS0 | SSI_SRC_PERIPHERAL_PORT |
@@ -269,10 +269,10 @@ static int ssi_start_dma(struct hsi_msg *msg, int lch)
} else {
err = dma_map_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents,
DMA_TO_DEVICE);
- if (err < 0) {
+ if (!err) {
dev_dbg(&ssi->device, "DMA map SG failed !\n");
pm_runtime_put_autosuspend(omap_port->pdev);
- return err;
+ return -EIO;
}
csdp = SSI_SRC_BURST_4x32_BIT | SSI_SRC_MEMORY_PORT |
SSI_DST_SINGLE_ACCESS0 | SSI_DST_PERIPHERAL_PORT |
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 123/210] media: exynos4-is: fimc-is: Add of_node_put() when breaking out of loop
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (121 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 122/210] HSI: omap_ssi_port: Fix dma_map_sg error check Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 124/210] tty: xilinx_uartps: Fix the ignore_status Greg Kroah-Hartman
` (89 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Liang He <windhl@126.com>
[ Upstream commit 211f8304fa21aaedc2c247f0c9d6c7f1aaa61ad7 ]
In fimc_is_register_subdevs(), we need to call of_node_put() for
the reference 'i2c_bus' when breaking out of the
for_each_compatible_node() which has increased the refcount.
Fixes: 9a761e436843 ("[media] exynos4-is: Add Exynos4x12 FIMC-IS driver")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/exynos4-is/fimc-is.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/platform/exynos4-is/fimc-is.c b/drivers/media/platform/exynos4-is/fimc-is.c
index 0f3f82bd4d20..6f59fe02c727 100644
--- a/drivers/media/platform/exynos4-is/fimc-is.c
+++ b/drivers/media/platform/exynos4-is/fimc-is.c
@@ -217,6 +217,7 @@ static int fimc_is_register_subdevs(struct fimc_is *is)
if (ret < 0 || index >= FIMC_IS_SENSORS_NUM) {
of_node_put(child);
+ of_node_put(i2c_bus);
return ret;
}
index++;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 124/210] tty: xilinx_uartps: Fix the ignore_status
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (122 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 123/210] media: exynos4-is: fimc-is: Add of_node_put() when breaking out of loop Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 125/210] media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init Greg Kroah-Hartman
` (88 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Shubhrajyoti Datta, Sasha Levin
From: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
[ Upstream commit b8a6c3b3d4654fba19881cc77da61eac29f57cae ]
Currently the ignore_status is not considered in the isr.
Add a check to add the ignore_status.
Fixes: 61ec9016988f ("tty/serial: add support for Xilinx PS UART")
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/20220729114748.18332-5-shubhrajyoti.datta@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/xilinx_uartps.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index cdd81c28893a..a04fbf83d123 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -369,6 +369,8 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id)
isrstatus &= ~CDNS_UART_IXR_TXEMPTY;
}
+ isrstatus &= port->read_status_mask;
+ isrstatus &= ~port->ignore_status_mask;
/*
* Skip RX processing if RX is disabled as RXEMPTY will never be set
* as read bytes will not be removed from the FIFO.
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 125/210] media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (123 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 124/210] tty: xilinx_uartps: Fix the ignore_status Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 126/210] RDMA/rxe: Fix "kernel NULL pointer dereference" error Greg Kroah-Hartman
` (87 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Laurent Pinchart,
Mauro Carvalho Chehab, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit 1c78f19c3a0ea312a8178a6bfd8934eb93e9b10a ]
of_get_child_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: df3305156f98 ("[media] v4l: xilinx: Add Xilinx Video IP core")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/xilinx/xilinx-vipp.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index ebfdf334d99c..7e0d7a47adf4 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -467,7 +467,7 @@ static int xvip_graph_dma_init(struct xvip_composite_device *xdev)
{
struct device_node *ports;
struct device_node *port;
- int ret;
+ int ret = 0;
ports = of_get_child_by_name(xdev->dev->of_node, "ports");
if (ports == NULL) {
@@ -477,13 +477,14 @@ static int xvip_graph_dma_init(struct xvip_composite_device *xdev)
for_each_child_of_node(ports, port) {
ret = xvip_graph_dma_init_one(xdev, port);
- if (ret < 0) {
+ if (ret) {
of_node_put(port);
- return ret;
+ break;
}
}
- return 0;
+ of_node_put(ports);
+ return ret;
}
static void xvip_graph_cleanup(struct xvip_composite_device *xdev)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 126/210] RDMA/rxe: Fix "kernel NULL pointer dereference" error
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (124 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 125/210] media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 127/210] RDMA/rxe: Fix the error caused by qp->sk Greg Kroah-Hartman
` (86 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+ab99dc4c6e961eed8b8e,
Zhu Yanjun, Li Zhijian, Bob Pearson, Leon Romanovsky,
Sasha Levin
From: Zhu Yanjun <yanjun.zhu@linux.dev>
[ Upstream commit a625ca30eff806395175ebad3ac1399014bdb280 ]
When rxe_queue_init in the function rxe_qp_init_req fails,
both qp->req.task.func and qp->req.task.arg are not initialized.
Because of creation of qp fails, the function rxe_create_qp will
call rxe_qp_do_cleanup to handle allocated resource.
Before calling __rxe_do_task, both qp->req.task.func and
qp->req.task.arg should be checked.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20220822011615.805603-2-yanjun.zhu@linux.dev
Reported-by: syzbot+ab99dc4c6e961eed8b8e@syzkaller.appspotmail.com
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/rxe/rxe_qp.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
index 6964e843bbae..6647a1628953 100644
--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -829,7 +829,9 @@ void rxe_qp_destroy(struct rxe_qp *qp)
rxe_cleanup_task(&qp->comp.task);
/* flush out any receive wr's or pending requests */
- __rxe_do_task(&qp->req.task);
+ if (qp->req.task.func)
+ __rxe_do_task(&qp->req.task);
+
if (qp->sq.queue) {
__rxe_do_task(&qp->comp.task);
__rxe_do_task(&qp->req.task);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 127/210] RDMA/rxe: Fix the error caused by qp->sk
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (125 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 126/210] RDMA/rxe: Fix "kernel NULL pointer dereference" error Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 128/210] dyndbg: fix module.dyndbg handling Greg Kroah-Hartman
` (85 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhu Yanjun, Li Zhijian, Bob Pearson,
Leon Romanovsky, Sasha Levin
From: Zhu Yanjun <yanjun.zhu@linux.dev>
[ Upstream commit 548ce2e66725dcba4e27d1e8ac468d5dd17fd509 ]
When sock_create_kern in the function rxe_qp_init_req fails,
qp->sk is set to NULL.
Then the function rxe_create_qp will call rxe_qp_do_cleanup
to handle allocated resource.
Before handling qp->sk, this variable should be checked.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20220822011615.805603-3-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/rxe/rxe_qp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
index 6647a1628953..2391b0e698a9 100644
--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -871,8 +871,10 @@ static void rxe_qp_do_cleanup(struct work_struct *work)
free_rd_atomic_resources(qp);
- kernel_sock_shutdown(qp->sk, SHUT_RDWR);
- sock_release(qp->sk);
+ if (qp->sk) {
+ kernel_sock_shutdown(qp->sk, SHUT_RDWR);
+ sock_release(qp->sk);
+ }
}
/* called when the last reference to the qp is dropped */
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 128/210] dyndbg: fix module.dyndbg handling
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (126 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 127/210] RDMA/rxe: Fix the error caused by qp->sk Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 129/210] dyndbg: let query-modname override actual module name Greg Kroah-Hartman
` (84 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rasmus Villemoes, Jason Baron,
Daniel Vetter, Jim Cromie, Sasha Levin
From: Jim Cromie <jim.cromie@gmail.com>
[ Upstream commit 85d6b66d31c35158364058ee98fb69ab5bb6a6b1 ]
For CONFIG_DYNAMIC_DEBUG=N, the ddebug_dyndbg_module_param_cb()
stub-fn is too permissive:
bash-5.1# modprobe drm JUNKdyndbg
bash-5.1# modprobe drm dyndbgJUNK
[ 42.933220] dyndbg param is supported only in CONFIG_DYNAMIC_DEBUG builds
[ 42.937484] ACPI: bus type drm_connector registered
This caused no ill effects, because unknown parameters are either
ignored by default with an "unknown parameter" warning, or ignored
because dyndbg allows its no-effect use on non-dyndbg builds.
But since the code has an explicit feedback message, it should be
issued accurately. Fix with strcmp for exact param-name match.
Fixes: b48420c1d301 dynamic_debug: make dynamic-debug work for module initialization
Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Jason Baron <jbaron@akamai.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Link: https://lore.kernel.org/r/20220904214134.408619-3-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/dynamic_debug.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 2fd8006153c3..921649db00f9 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -168,7 +168,7 @@ static inline int ddebug_remove_module(const char *mod)
static inline int ddebug_dyndbg_module_param_cb(char *param, char *val,
const char *modname)
{
- if (strstr(param, "dyndbg")) {
+ if (!strcmp(param, "dyndbg")) {
/* avoid pr_warn(), which wants pr_fmt() fully defined */
printk(KERN_WARNING "dyndbg param is supported only in "
"CONFIG_DYNAMIC_DEBUG builds\n");
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 129/210] dyndbg: let query-modname override actual module name
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (127 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 128/210] dyndbg: fix module.dyndbg handling Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 130/210] ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting() Greg Kroah-Hartman
` (83 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jason Baron, Daniel Vetter,
Jim Cromie, Sasha Levin
From: Jim Cromie <jim.cromie@gmail.com>
[ Upstream commit e75ef56f74965f426dd819a41336b640ffdd8fbc ]
dyndbg's control-parser: ddebug_parse_query(), requires that search
terms: module, func, file, lineno, are used only once in a query; a
thing cannot be named both foo and bar.
The cited commit added an overriding module modname, taken from the
module loader, which is authoritative. So it set query.module 1st,
which disallowed its use in the query-string.
But now, its useful to allow a module-load to enable classes across a
whole (or part of) a subsystem at once.
# enable (dynamic-debug in) drm only
modprobe drm dyndbg="class DRM_UT_CORE +p"
# get drm_helper too
modprobe drm dyndbg="class DRM_UT_CORE module drm* +p"
# get everything that knows DRM_UT_CORE
modprobe drm dyndbg="class DRM_UT_CORE module * +p"
# also for boot-args:
drm.dyndbg="class DRM_UT_CORE module * +p"
So convert the override into a default, by filling it only when/after
the query-string omitted the module.
NB: the query class FOO handling is forthcoming.
Fixes: 8e59b5cfb9a6 dynamic_debug: add modname arg to exec_query callchain
Acked-by: Jason Baron <jbaron@akamai.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Link: https://lore.kernel.org/r/20220904214134.408619-8-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
lib/dynamic_debug.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 91c451e0f474..01591a7b151f 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -327,10 +327,6 @@ static int ddebug_parse_query(char *words[], int nwords,
}
memset(query, 0, sizeof(*query));
- if (modname)
- /* support $modname.dyndbg=<multiple queries> */
- query->module = modname;
-
for (i = 0; i < nwords; i += 2) {
if (!strcmp(words[i], "func")) {
rc = check_set(&query->function, words[i+1], "func");
@@ -379,6 +375,13 @@ static int ddebug_parse_query(char *words[], int nwords,
if (rc)
return rc;
}
+ if (!query->module && modname)
+ /*
+ * support $modname.dyndbg=<multiple queries>, when
+ * not given in the query itself
+ */
+ query->module = modname;
+
vpr_info_dq(query, "parsed");
return 0;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 130/210] ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (128 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 129/210] dyndbg: let query-modname override actual module name Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 131/210] ata: fix ata_id_has_devslp() Greg Kroah-Hartman
` (82 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Niklas Cassel, Damien Le Moal, Sasha Levin
From: Niklas Cassel <niklas.cassel@wdc.com>
[ Upstream commit 690aa8c3ae308bc696ec8b1b357b995193927083 ]
ACS-5 section
7.13.6.41 Words 85..87, 120: Commands and feature sets supported or enabled
states that:
If bit 15 of word 86 is set to one, bit 14 of word 119 is set to one,
and bit 15 of word 119 is cleared to zero, then word 119 is valid.
If bit 15 of word 86 is set to one, bit 14 of word 120 is set to one,
and bit 15 of word 120 is cleared to zero, then word 120 is valid.
(This text also exists in really old ACS standards, e.g. ACS-3.)
Currently, ata_id_sense_reporting_enabled() and
ata_id_has_sense_reporting() both check bit 15 of word 86,
but neither of them check that bit 14 of word 119 is set to one,
or that bit 15 of word 119 is cleared to zero.
Additionally, make ata_id_sense_reporting_enabled() return false
if !ata_id_has_sense_reporting(), similar to how e.g.
ata_id_flush_ext_enabled() returns false if !ata_id_has_flush_ext().
Fixes: e87fd28cf9a2 ("libata: Implement support for sense data reporting")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/ata.h | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/include/linux/ata.h b/include/linux/ata.h
index c7a353825450..90a4c166c0fa 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -784,16 +784,21 @@ static inline bool ata_id_has_read_log_dma_ext(const u16 *id)
static inline bool ata_id_has_sense_reporting(const u16 *id)
{
- if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+ if (!(id[ATA_ID_CFS_ENABLE_2] & BIT(15)))
+ return false;
+ if ((id[ATA_ID_COMMAND_SET_3] & (BIT(15) | BIT(14))) != BIT(14))
return false;
- return id[ATA_ID_COMMAND_SET_3] & (1 << 6);
+ return id[ATA_ID_COMMAND_SET_3] & BIT(6);
}
static inline bool ata_id_sense_reporting_enabled(const u16 *id)
{
- if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+ if (!ata_id_has_sense_reporting(id))
+ return false;
+ /* ata_id_has_sense_reporting() == true, word 86 must have bit 15 set */
+ if ((id[ATA_ID_COMMAND_SET_4] & (BIT(15) | BIT(14))) != BIT(14))
return false;
- return id[ATA_ID_COMMAND_SET_4] & (1 << 6);
+ return id[ATA_ID_COMMAND_SET_4] & BIT(6);
}
/**
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 131/210] ata: fix ata_id_has_devslp()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (129 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 130/210] ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 132/210] ata: fix ata_id_has_ncq_autosense() Greg Kroah-Hartman
` (81 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Niklas Cassel, Damien Le Moal, Sasha Levin
From: Niklas Cassel <niklas.cassel@wdc.com>
[ Upstream commit 9c6e09a434e1317e09b78b3b69cd384022ec9a03 ]
ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:
If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.
(This text also exists in really old ACS standards, e.g. ACS-3.)
Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.
Fixes: 65fe1f0f66a5 ("ahci: implement aggressive SATA device sleep support")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/ata.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 90a4c166c0fa..c2beacc9e522 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -579,6 +579,10 @@ struct ata_bmdma_prd {
((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 2)))
+#define ata_id_has_devslp(id) \
+ ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
+ ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
+ ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)))
#define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
#define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
#define ata_id_u32(id,n) \
@@ -591,7 +595,6 @@ struct ata_bmdma_prd {
#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
#define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
-#define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))
#define ata_id_has_ncq_autosense(id) \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 132/210] ata: fix ata_id_has_ncq_autosense()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (130 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 131/210] ata: fix ata_id_has_devslp() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 133/210] ata: fix ata_id_has_dipm() Greg Kroah-Hartman
` (80 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Niklas Cassel, Damien Le Moal, Sasha Levin
From: Niklas Cassel <niklas.cassel@wdc.com>
[ Upstream commit a5fb6bf853148974dbde092ec1bde553bea5e49f ]
ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:
If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.
(This text also exists in really old ACS standards, e.g. ACS-3.)
Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.
Fixes: 5b01e4b9efa0 ("libata: Implement NCQ autosense")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/ata.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/ata.h b/include/linux/ata.h
index c2beacc9e522..641545929efb 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -583,6 +583,10 @@ struct ata_bmdma_prd {
((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)))
+#define ata_id_has_ncq_autosense(id) \
+ ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
+ ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
+ ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)))
#define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
#define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
#define ata_id_u32(id,n) \
@@ -595,8 +599,6 @@ struct ata_bmdma_prd {
#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
#define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
-#define ata_id_has_ncq_autosense(id) \
- ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
static inline bool ata_id_has_hipm(const u16 *id)
{
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 133/210] ata: fix ata_id_has_dipm()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (131 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 132/210] ata: fix ata_id_has_ncq_autosense() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 134/210] md/raid5: Ensure stripe_fill happens on non-read IO with journal Greg Kroah-Hartman
` (79 subsequent siblings)
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From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Niklas Cassel, Damien Le Moal, Sasha Levin
From: Niklas Cassel <niklas.cassel@wdc.com>
[ Upstream commit 630624cb1b5826d753ac8e01a0e42de43d66dedf ]
ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:
If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.
(This text also exists in really old ACS standards, e.g. ACS-3.)
The problem with ata_id_has_dipm() is that the while it performs a
check against 0 and 0xffff, it performs the check against
ATA_ID_FEATURE_SUPP (word 78), the same word where the feature bit
is stored.
Fix this by performing the check against ATA_ID_SATA_CAPABILITY
(word 76), like required by the spec. The feature bit check itself
is of course still performed against ATA_ID_FEATURE_SUPP (word 78).
Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.
Fixes: ca77329fb713 ("[libata] Link power management infrastructure")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/ata.h | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 641545929efb..af884beac08d 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -587,6 +587,10 @@ struct ata_bmdma_prd {
((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)))
+#define ata_id_has_dipm(id) \
+ ((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
+ ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
+ ((id)[ATA_ID_FEATURE_SUPP] & (1 << 3)))
#define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
#define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
#define ata_id_u32(id,n) \
@@ -610,17 +614,6 @@ static inline bool ata_id_has_hipm(const u16 *id)
return val & (1 << 9);
}
-static inline bool ata_id_has_dipm(const u16 *id)
-{
- u16 val = id[ATA_ID_FEATURE_SUPP];
-
- if (val == 0 || val == 0xffff)
- return false;
-
- return val & (1 << 3);
-}
-
-
static inline bool ata_id_has_fua(const u16 *id)
{
if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 134/210] md/raid5: Ensure stripe_fill happens on non-read IO with journal
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (132 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 133/210] ata: fix ata_id_has_dipm() Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 135/210] xhci: Dont show warning for reinit on known broken suspend Greg Kroah-Hartman
` (78 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Song Liu, Logan Gunthorpe, Sasha Levin
From: Logan Gunthorpe <logang@deltatee.com>
[ Upstream commit e2eed85bc75138a9eeb63863d20f8904ac42a577 ]
When doing degrade/recover tests using the journal a kernel BUG
is hit at drivers/md/raid5.c:4381 in handle_parity_checks5():
BUG_ON(!test_bit(R5_UPTODATE, &dev->flags));
This was found to occur because handle_stripe_fill() was skipped
for stripes in the journal due to a condition in that function.
Thus blocks were not fetched and R5_UPTODATE was not set when
the code reached handle_parity_checks5().
To fix this, don't skip handle_stripe_fill() unless the stripe is
for read.
Fixes: 07e83364845e ("md/r5cache: shift complex rmw from read path to write path")
Link: https://lore.kernel.org/linux-raid/e05c4239-41a9-d2f7-3cfa-4aa9d2cea8c1@deltatee.com/
Suggested-by: Song Liu <song@kernel.org>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/md/raid5.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 866ba1743f9f..78b48dca3fda 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3720,7 +3720,7 @@ static void handle_stripe_fill(struct stripe_head *sh,
* back cache (prexor with orig_page, and then xor with
* page) in the read path
*/
- if (s->injournal && s->failed) {
+ if (s->to_read && s->injournal && s->failed) {
if (test_bit(STRIPE_R5C_CACHING, &sh->state))
r5c_make_stripe_write_out(sh);
goto out;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 135/210] xhci: Dont show warning for reinit on known broken suspend
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (133 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 134/210] md/raid5: Ensure stripe_fill happens on non-read IO with journal Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 136/210] usb: gadget: function: fix dangling pnp_string in f_printer.c Greg Kroah-Hartman
` (77 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Artem S. Tashkinov,
Mario Limonciello, Mathias Nyman, Sasha Levin
From: Mario Limonciello <mario.limonciello@amd.com>
[ Upstream commit 484d6f7aa3283d082c87654b7fe7a7f725423dfb ]
commit 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was
set") introduced a new warning message when the host controller error
was set and re-initializing.
This is expected behavior on some designs which already set
`xhci->broken_suspend` so the new warning is alarming to some users.
Modify the code to only show the warning if this was a surprising behavior
to the XHCI driver.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216470
Fixes: 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was set")
Reported-by: Artem S. Tashkinov <aros@gmx.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/host/xhci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index c41548f08c54..0f2b67f38d2e 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1094,7 +1094,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
/* re-initialize the HC on Restore Error, or Host Controller Error */
if (temp & (STS_SRE | STS_HCE)) {
reinit_xhc = true;
- xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp);
+ if (!xhci->broken_suspend)
+ xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp);
}
if (reinit_xhc) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 136/210] usb: gadget: function: fix dangling pnp_string in f_printer.c
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (134 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 135/210] xhci: Dont show warning for reinit on known broken suspend Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 137/210] drivers: serial: jsm: fix some leaks in probe Greg Kroah-Hartman
` (76 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Albert Briscoe, Sasha Levin
From: Albert Briscoe <albertsbriscoe@gmail.com>
[ Upstream commit 24b7ba2f88e04800b54d462f376512e8c41b8a3c ]
When opts->pnp_string is changed with configfs, new memory is allocated for
the string. It does not, however, update dev->pnp_string, even though the
memory is freed. When rquesting the string, the host then gets old or
corrupted data rather than the new string. The ieee 1284 id string should
be allowed to change while the device is connected.
The bug was introduced in commit fdc01cc286be ("usb: gadget: printer:
Remove pnp_string static buffer"), which changed opts->pnp_string from a
char[] to a char*.
This patch changes dev->pnp_string from a char* to a char** pointing to
opts->pnp_string.
Fixes: fdc01cc286be ("usb: gadget: printer: Remove pnp_string static buffer")
Signed-off-by: Albert Briscoe <albertsbriscoe@gmail.com>
Link: https://lore.kernel.org/r/20220911223753.20417-1-albertsbriscoe@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/gadget/function/f_printer.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c
index 4e0afeabe8b8..830cc2bb0fdf 100644
--- a/drivers/usb/gadget/function/f_printer.c
+++ b/drivers/usb/gadget/function/f_printer.c
@@ -91,7 +91,7 @@ struct printer_dev {
u8 printer_cdev_open;
wait_queue_head_t wait;
unsigned q_len;
- char *pnp_string; /* We don't own memory! */
+ char **pnp_string; /* We don't own memory! */
struct usb_function function;
};
@@ -967,16 +967,16 @@ static int printer_func_setup(struct usb_function *f,
if ((wIndex>>8) != dev->interface)
break;
- if (!dev->pnp_string) {
+ if (!*dev->pnp_string) {
value = 0;
break;
}
- value = strlen(dev->pnp_string);
+ value = strlen(*dev->pnp_string);
buf[0] = (value >> 8) & 0xFF;
buf[1] = value & 0xFF;
- memcpy(buf + 2, dev->pnp_string, value);
+ memcpy(buf + 2, *dev->pnp_string, value);
DBG(dev, "1284 PNP String: %x %s\n", value,
- dev->pnp_string);
+ *dev->pnp_string);
break;
case GET_PORT_STATUS: /* Get Port Status */
@@ -1439,7 +1439,7 @@ static struct usb_function *gprinter_alloc(struct usb_function_instance *fi)
kref_init(&dev->kref);
++opts->refcnt;
dev->minor = opts->minor;
- dev->pnp_string = opts->pnp_string;
+ dev->pnp_string = &opts->pnp_string;
dev->q_len = opts->q_len;
mutex_unlock(&opts->lock);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 137/210] drivers: serial: jsm: fix some leaks in probe
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (135 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 136/210] usb: gadget: function: fix dangling pnp_string in f_printer.c Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 138/210] phy: qualcomm: call clk_disable_unprepare in the error handling Greg Kroah-Hartman
` (75 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 1d5859ef229e381f4db38dce8ed58e4bf862006b ]
This error path needs to unwind instead of just returning directly.
Fixes: 03a8482c17dd ("drivers: serial: jsm: Enable support for Digi Classic adapters")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YyxFh1+lOeZ9WfKO@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/jsm/jsm_driver.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 102d499814ac..bd4efbbb7073 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -221,7 +221,8 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
break;
default:
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_kfree_brd;
}
rc = request_irq(brd->irq, brd->bd_ops->intr, IRQF_SHARED, "JSM", brd);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 138/210] phy: qualcomm: call clk_disable_unprepare in the error handling
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (136 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 137/210] drivers: serial: jsm: fix some leaks in probe Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 139/210] firmware: google: Test spinlock on panic path to avoid lockups Greg Kroah-Hartman
` (74 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dongliang Mu, Neil Armstrong,
Vinod Koul, Sasha Levin
From: Dongliang Mu <mudongliangabcd@gmail.com>
[ Upstream commit c3966ced8eb8dc53b6c8d7f97d32cc8a2107d83e ]
Smatch reports the following error:
drivers/phy/qualcomm/phy-qcom-usb-hsic.c:82 qcom_usb_hsic_phy_power_on()
warn: 'uphy->cal_clk' from clk_prepare_enable() not released on lines:
58.
drivers/phy/qualcomm/phy-qcom-usb-hsic.c:82 qcom_usb_hsic_phy_power_on()
warn: 'uphy->cal_sleep_clk' from clk_prepare_enable() not released on
lines: 58.
drivers/phy/qualcomm/phy-qcom-usb-hsic.c:82 qcom_usb_hsic_phy_power_on()
warn: 'uphy->phy_clk' from clk_prepare_enable() not released on lines:
58.
Fix this by calling proper clk_disable_unprepare calls.
Fixes: 0b56e9a7e835 ("phy: Group vendor specific phy drivers")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20220914051334.69282-1-dzm91@hust.edu.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/phy/qualcomm/phy-qcom-usb-hsic.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-usb-hsic.c b/drivers/phy/qualcomm/phy-qcom-usb-hsic.c
index c110563a73cb..00926df4bc5b 100644
--- a/drivers/phy/qualcomm/phy-qcom-usb-hsic.c
+++ b/drivers/phy/qualcomm/phy-qcom-usb-hsic.c
@@ -57,8 +57,10 @@ static int qcom_usb_hsic_phy_power_on(struct phy *phy)
/* Configure pins for HSIC functionality */
pins_default = pinctrl_lookup_state(uphy->pctl, PINCTRL_STATE_DEFAULT);
- if (IS_ERR(pins_default))
- return PTR_ERR(pins_default);
+ if (IS_ERR(pins_default)) {
+ ret = PTR_ERR(pins_default);
+ goto err_ulpi;
+ }
ret = pinctrl_select_state(uphy->pctl, pins_default);
if (ret)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 139/210] firmware: google: Test spinlock on panic path to avoid lockups
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (137 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 138/210] phy: qualcomm: call clk_disable_unprepare in the error handling Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 140/210] serial: 8250: Fix restoring termios speed after suspend Greg Kroah-Hartman
` (73 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andrew Morton, Ard Biesheuvel,
David Gow, Julius Werner, Petr Mladek, Evan Green,
Guilherme G. Piccoli, Sasha Levin
From: Guilherme G. Piccoli <gpiccoli@igalia.com>
[ Upstream commit 3e081438b8e639cc76ef1a5ce0c1bd8a154082c7 ]
Currently the gsmi driver registers a panic notifier as well as
reboot and die notifiers. The callbacks registered are called in
atomic and very limited context - for instance, panic disables
preemption and local IRQs, also all secondary CPUs (not executing
the panic path) are shutdown.
With that said, taking a spinlock in this scenario is a dangerous
invitation for lockup scenarios. So, fix that by checking if the
spinlock is free to acquire in the panic notifier callback - if not,
bail-out and avoid a potential hang.
Fixes: 74c5b31c6618 ("driver: Google EFI SMI")
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: David Gow <davidgow@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Link: https://lore.kernel.org/r/20220909200755.189679-1-gpiccoli@igalia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/firmware/google/gsmi.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index 62337be07afc..2e3ef0eb6e82 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -661,6 +661,15 @@ static struct notifier_block gsmi_die_notifier = {
static int gsmi_panic_callback(struct notifier_block *nb,
unsigned long reason, void *arg)
{
+
+ /*
+ * Panic callbacks are executed with all other CPUs stopped,
+ * so we must not attempt to spin waiting for gsmi_dev.lock
+ * to be released.
+ */
+ if (spin_is_locked(&gsmi_dev.lock))
+ return NOTIFY_DONE;
+
gsmi_shutdown_reason(GSMI_SHUTDOWN_PANIC);
return NOTIFY_DONE;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 140/210] serial: 8250: Fix restoring termios speed after suspend
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (138 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 139/210] firmware: google: Test spinlock on panic path to avoid lockups Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 141/210] fsi: core: Check error number after calling ida_simple_get Greg Kroah-Hartman
` (72 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pali Rohár, Sasha Levin
From: Pali Rohár <pali@kernel.org>
[ Upstream commit 379a33786d489ab81885ff0b3935cfeb36137fea ]
Since commit edc6afc54968 ("tty: switch to ktermios and new framework")
termios speed is no longer stored only in c_cflag member but also in new
additional c_ispeed and c_ospeed members. If BOTHER flag is set in c_cflag
then termios speed is stored only in these new members.
Since commit 027b57170bf8 ("serial: core: Fix initializing and restoring
termios speed") termios speed is available also in struct console.
So properly restore also c_ispeed and c_ospeed members after suspend to fix
restoring termios speed which is not represented by Bnnn constant.
Fixes: 4516d50aabed ("serial: 8250: Use canary to restart console after suspend")
Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20220924104324.4035-1-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/8250/8250_port.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 5d614d645e81..def880039b30 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -3236,8 +3236,13 @@ static void serial8250_console_restore(struct uart_8250_port *up)
unsigned int baud, quot, frac = 0;
termios.c_cflag = port->cons->cflag;
- if (port->state->port.tty && termios.c_cflag == 0)
+ termios.c_ispeed = port->cons->ispeed;
+ termios.c_ospeed = port->cons->ospeed;
+ if (port->state->port.tty && termios.c_cflag == 0) {
termios.c_cflag = port->state->port.tty->termios.c_cflag;
+ termios.c_ispeed = port->state->port.tty->termios.c_ispeed;
+ termios.c_ospeed = port->state->port.tty->termios.c_ospeed;
+ }
baud = serial8250_get_baud_rate(port, &termios, NULL);
quot = serial8250_get_divisor(up, baud, &frac);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 141/210] fsi: core: Check error number after calling ida_simple_get
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (139 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 140/210] serial: 8250: Fix restoring termios speed after suspend Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:30 ` [PATCH 4.14 142/210] mfd: intel_soc_pmic: Fix an error handling path in intel_soc_pmic_i2c_probe() Greg Kroah-Hartman
` (71 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiasheng Jiang, Eddie James,
Joel Stanley, Sasha Levin
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ Upstream commit 35af9fb49bc5c6d61ef70b501c3a56fe161cce3e ]
If allocation fails, the ida_simple_get() will return error number.
So master->idx could be error number and be used in dev_set_name().
Therefore, it should be better to check it and return error if fails,
like the ida_simple_get() in __fsi_get_new_minor().
Fixes: 09aecfab93b8 ("drivers/fsi: Add fsi master definition")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20220111073411.614138-1-jiasheng@iscas.ac.cn
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 8feca59c1f6b..392efc2a4b8c 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -821,6 +821,9 @@ int fsi_master_register(struct fsi_master *master)
return -EINVAL;
master->idx = ida_simple_get(&master_ida, 0, INT_MAX, GFP_KERNEL);
+ if (master->idx < 0)
+ return master->idx;
+
dev_set_name(&master->dev, "fsi%d", master->idx);
rc = device_register(&master->dev);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 142/210] mfd: intel_soc_pmic: Fix an error handling path in intel_soc_pmic_i2c_probe()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (140 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 141/210] fsi: core: Check error number after calling ida_simple_get Greg Kroah-Hartman
@ 2022-10-24 11:30 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 143/210] mfd: fsl-imx25: Fix an error handling path in mx25_tsadc_setup_irq() Greg Kroah-Hartman
` (70 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:30 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Andy Shevchenko,
Hans de Goede, Lee Jones, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 48749cabba109397b4e7dd556e85718ec0ec114d ]
The commit in Fixes: has added a pwm_add_table() call in the probe() and
a pwm_remove_table() call in the remove(), but forget to update the error
handling path of the probe.
Add the missing pwm_remove_table() call.
Fixes: a3aa9a93df9f ("mfd: intel_soc_pmic_core: ADD PWM lookup table for CRC PMIC based PWM")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220801114211.36267-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/intel_soc_pmic_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c
index 36adf9e8153e..eb9ff34294e6 100644
--- a/drivers/mfd/intel_soc_pmic_core.c
+++ b/drivers/mfd/intel_soc_pmic_core.c
@@ -119,6 +119,7 @@ static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
return 0;
err_del_irq_chip:
+ pwm_remove_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
return ret;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 143/210] mfd: fsl-imx25: Fix an error handling path in mx25_tsadc_setup_irq()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (141 preceding siblings ...)
2022-10-24 11:30 ` [PATCH 4.14 142/210] mfd: intel_soc_pmic: Fix an error handling path in intel_soc_pmic_i2c_probe() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 144/210] mfd: lp8788: Fix an error handling path in lp8788_probe() Greg Kroah-Hartman
` (69 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Lee Jones, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 3fa9e4cfb55da512ebfd57336fde468830719298 ]
If devm_of_platform_populate() fails, some resources need to be
released.
Introduce a mx25_tsadc_unset_irq() function that undoes
mx25_tsadc_setup_irq() and call it both from the new error handling path
of the probe and in the remove function.
Fixes: a55196eff6d6 ("mfd: fsl-imx25: Use devm_of_platform_populate()")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/d404e04828fc06bcfddf81f9f3e9b4babbe35415.1659269156.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/fsl-imx25-tsadc.c | 32 ++++++++++++++++++++++++--------
1 file changed, 24 insertions(+), 8 deletions(-)
diff --git a/drivers/mfd/fsl-imx25-tsadc.c b/drivers/mfd/fsl-imx25-tsadc.c
index 461b0990b56f..5ad721035e49 100644
--- a/drivers/mfd/fsl-imx25-tsadc.c
+++ b/drivers/mfd/fsl-imx25-tsadc.c
@@ -90,6 +90,19 @@ static int mx25_tsadc_setup_irq(struct platform_device *pdev,
return 0;
}
+static int mx25_tsadc_unset_irq(struct platform_device *pdev)
+{
+ struct mx25_tsadc *tsadc = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (irq) {
+ irq_set_chained_handler_and_data(irq, NULL, NULL);
+ irq_domain_remove(tsadc->domain);
+ }
+
+ return 0;
+}
+
static void mx25_tsadc_setup_clk(struct platform_device *pdev,
struct mx25_tsadc *tsadc)
{
@@ -177,18 +190,21 @@ static int mx25_tsadc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, tsadc);
- return devm_of_platform_populate(dev);
+ ret = devm_of_platform_populate(dev);
+ if (ret)
+ goto err_irq;
+
+ return 0;
+
+err_irq:
+ mx25_tsadc_unset_irq(pdev);
+
+ return ret;
}
static int mx25_tsadc_remove(struct platform_device *pdev)
{
- struct mx25_tsadc *tsadc = platform_get_drvdata(pdev);
- int irq = platform_get_irq(pdev, 0);
-
- if (irq) {
- irq_set_chained_handler_and_data(irq, NULL, NULL);
- irq_domain_remove(tsadc->domain);
- }
+ mx25_tsadc_unset_irq(pdev);
return 0;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 144/210] mfd: lp8788: Fix an error handling path in lp8788_probe()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (142 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 143/210] mfd: fsl-imx25: Fix an error handling path in mx25_tsadc_setup_irq() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 145/210] mfd: lp8788: Fix an error handling path in lp8788_irq_init() and lp8788_irq_init() Greg Kroah-Hartman
` (68 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Lee Jones, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit becfdcd75126b20b8ec10066c5e85b34f8994ad5 ]
Should an error occurs in mfd_add_devices(), some resources need to be
released, as already done in the .remove() function.
Add an error handling path and a lp8788_irq_exit() call to undo a previous
lp8788_irq_init().
Fixes: eea6b7cc53aa ("mfd: Add lp8788 mfd driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/18398722da9df9490722d853e4797350189ae79b.1659261275.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/lp8788.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/lp8788.c b/drivers/mfd/lp8788.c
index acf616559512..e47150cdf747 100644
--- a/drivers/mfd/lp8788.c
+++ b/drivers/mfd/lp8788.c
@@ -199,8 +199,16 @@ static int lp8788_probe(struct i2c_client *cl, const struct i2c_device_id *id)
if (ret)
return ret;
- return mfd_add_devices(lp->dev, -1, lp8788_devs,
- ARRAY_SIZE(lp8788_devs), NULL, 0, NULL);
+ ret = mfd_add_devices(lp->dev, -1, lp8788_devs,
+ ARRAY_SIZE(lp8788_devs), NULL, 0, NULL);
+ if (ret)
+ goto err_exit_irq;
+
+ return 0;
+
+err_exit_irq:
+ lp8788_irq_exit(lp);
+ return ret;
}
static int lp8788_remove(struct i2c_client *cl)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 145/210] mfd: lp8788: Fix an error handling path in lp8788_irq_init() and lp8788_irq_init()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (143 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 144/210] mfd: lp8788: Fix an error handling path in lp8788_probe() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 146/210] mfd: sm501: Add check for platform_driver_register() Greg Kroah-Hartman
` (67 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Lee Jones, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 557244f6284f30613f2d61f14b579303165876c3 ]
In lp8788_irq_init(), if an error occurs after a successful
irq_domain_add_linear() call, it must be undone by a corresponding
irq_domain_remove() call.
irq_domain_remove() should also be called in lp8788_irq_exit() for the same
reason.
Fixes: eea6b7cc53aa ("mfd: Add lp8788 mfd driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/bcd5a72c9c1c383dd6324680116426e32737655a.1659261275.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/lp8788-irq.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mfd/lp8788-irq.c b/drivers/mfd/lp8788-irq.c
index 792d51bae20f..ae65928f35f0 100644
--- a/drivers/mfd/lp8788-irq.c
+++ b/drivers/mfd/lp8788-irq.c
@@ -179,6 +179,7 @@ int lp8788_irq_init(struct lp8788 *lp, int irq)
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
"lp8788-irq", irqd);
if (ret) {
+ irq_domain_remove(lp->irqdm);
dev_err(lp->dev, "failed to create a thread for IRQ_N\n");
return ret;
}
@@ -192,4 +193,6 @@ void lp8788_irq_exit(struct lp8788 *lp)
{
if (lp->irq)
free_irq(lp->irq, lp->irqdm);
+ if (lp->irqdm)
+ irq_domain_remove(lp->irqdm);
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 146/210] mfd: sm501: Add check for platform_driver_register()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (144 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 145/210] mfd: lp8788: Fix an error handling path in lp8788_irq_init() and lp8788_irq_init() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 147/210] dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup() Greg Kroah-Hartman
` (66 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiasheng Jiang, Lee Jones, Sasha Levin
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ Upstream commit 8325a6c24ad78b8c1acc3c42b098ee24105d68e5 ]
As platform_driver_register() can return error numbers,
it should be better to check platform_driver_register()
and deal with the exception.
Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220913091112.1739138-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/sm501.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 4ca245518a19..d64bd28cc6b8 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1736,7 +1736,12 @@ static struct platform_driver sm501_plat_driver = {
static int __init sm501_base_init(void)
{
- platform_driver_register(&sm501_plat_driver);
+ int ret;
+
+ ret = platform_driver_register(&sm501_plat_driver);
+ if (ret < 0)
+ return ret;
+
return pci_register_driver(&sm501_pci_driver);
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 147/210] dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (145 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 146/210] mfd: sm501: Add check for platform_driver_register() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 148/210] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Greg Kroah-Hartman
` (65 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dave Jiang, Vinod Koul, Sasha Levin
From: Dave Jiang <dave.jiang@intel.com>
[ Upstream commit 898ec89dbb55b8294695ad71694a0684e62b2a73 ]
User reports observing timer event report channel halted but no error
observed in CHANERR register. The driver finished self-test and released
channel resources. Debug shows that __cleanup() can call
mod_timer() after the timer has been deleted and thus resurrect the
timer. While harmless, it causes suprious error message to be emitted.
Use mod_timer_pending() call to prevent deleted timer from being
resurrected.
Fixes: 3372de5813e4 ("dmaengine: ioatdma: removal of dma_v3.c and relevant ioat3 references")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166360672197.3851724.17040290563764838369.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/dma/ioat/dma.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 4c2b41beaf63..6f167a082832 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -654,7 +654,7 @@ static void __cleanup(struct ioatdma_chan *ioat_chan, dma_addr_t phys_complete)
if (active - i == 0) {
dev_dbg(to_dev(ioat_chan), "%s: cancel completion timeout\n",
__func__);
- mod_timer(&ioat_chan->timer, jiffies + IDLE_TIMEOUT);
+ mod_timer_pending(&ioat_chan->timer, jiffies + IDLE_TIMEOUT);
}
/* microsecond delay by sysfs variable per pending descriptor */
@@ -680,7 +680,7 @@ static void ioat_cleanup(struct ioatdma_chan *ioat_chan)
if (chanerr &
(IOAT_CHANERR_HANDLE_MASK | IOAT_CHANERR_RECOVER_MASK)) {
- mod_timer(&ioat_chan->timer, jiffies + IDLE_TIMEOUT);
+ mod_timer_pending(&ioat_chan->timer, jiffies + IDLE_TIMEOUT);
ioat_eh(ioat_chan);
}
}
@@ -872,7 +872,7 @@ static void check_active(struct ioatdma_chan *ioat_chan)
}
if (test_and_clear_bit(IOAT_CHAN_ACTIVE, &ioat_chan->state))
- mod_timer(&ioat_chan->timer, jiffies + IDLE_TIMEOUT);
+ mod_timer_pending(&ioat_chan->timer, jiffies + IDLE_TIMEOUT);
}
void ioat_timer_event(unsigned long data)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 148/210] spmi: pmic-arb: correct duplicate APID to PPID mapping logic
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (146 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 147/210] dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 149/210] clk: bcm2835: fix bcm2835_clock_rate_from_divisor declaration Greg Kroah-Hartman
` (64 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, David Collins, Fenglin Wu,
Stephen Boyd, Sasha Levin
From: David Collins <collinsd@codeaurora.org>
[ Upstream commit 1f1693118c2476cb1666ad357edcf3cf48bf9b16 ]
Correct the way that duplicate PPID mappings are handled for PMIC
arbiter v5. The final APID mapped to a given PPID should be the
one which has write owner = APPS EE, if it exists, or if not
that, then the first APID mapped to the PPID, if it exists.
Fixes: 40f318f0ed67 ("spmi: pmic-arb: add support for HW version 5")
Signed-off-by: David Collins <collinsd@codeaurora.org>
Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
Link: https://lore.kernel.org/r/1655004286-11493-7-git-send-email-quic_fenglinw@quicinc.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220930005019.2663064-8-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spmi/spmi-pmic-arb.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 360b8218f322..0eb156aa4975 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -867,7 +867,8 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
* version 5, there is more than one APID mapped to each PPID.
* The owner field for each of these mappings specifies the EE which is
* allowed to write to the APID. The owner of the last (highest) APID
- * for a given PPID will receive interrupts from the PPID.
+ * which has the IRQ owner bit set for a given PPID will receive
+ * interrupts from the PPID.
*/
for (i = 0; ; i++, apidd++) {
offset = pmic_arb->ver_ops->apid_map_offset(i);
@@ -890,16 +891,16 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
prev_apidd = &pmic_arb->apid_data[apid];
- if (valid && is_irq_ee &&
- prev_apidd->write_ee == pmic_arb->ee) {
+ if (!valid || apidd->write_ee == pmic_arb->ee) {
+ /* First PPID mapping or one for this EE */
+ pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
+ } else if (valid && is_irq_ee &&
+ prev_apidd->write_ee == pmic_arb->ee) {
/*
* Duplicate PPID mapping after the one for this EE;
* override the irq owner
*/
prev_apidd->irq_ee = apidd->irq_ee;
- } else if (!valid || is_irq_ee) {
- /* First PPID mapping or duplicate for another EE */
- pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
}
apidd->ppid = ppid;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 149/210] clk: bcm2835: fix bcm2835_clock_rate_from_divisor declaration
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (147 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 148/210] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 150/210] clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe Greg Kroah-Hartman
` (63 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Stefan Wahren, Ivan T. Ivanov,
Florian Fainelli, Stephen Boyd, Sasha Levin
From: Stefan Wahren <stefan.wahren@i2se.com>
[ Upstream commit 0b919a3728691c172312dee99ba654055ccd8c84 ]
The return value of bcm2835_clock_rate_from_divisor is always unsigned
and also all caller expect this. So fix the declaration accordingly.
Fixes: 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/20220904141037.38816-1-stefan.wahren@i2se.com
Reviewed-by: Ivan T. Ivanov <iivanov@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/bcm/clk-bcm2835.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 8ccd72cc66ba..be217c876e25 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -984,9 +984,9 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
return div;
}
-static long bcm2835_clock_rate_from_divisor(struct bcm2835_clock *clock,
- unsigned long parent_rate,
- u32 div)
+static unsigned long bcm2835_clock_rate_from_divisor(struct bcm2835_clock *clock,
+ unsigned long parent_rate,
+ u32 div)
{
const struct bcm2835_clock_data *data = clock->data;
u64 temp;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 150/210] clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (148 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 149/210] clk: bcm2835: fix bcm2835_clock_rate_from_divisor declaration Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 151/210] mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg Greg Kroah-Hartman
` (62 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Tony Lindgren,
Stephen Boyd, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit 9c59a01caba26ec06fefd6ca1f22d5fd1de57d63 ]
pm_runtime_get_sync() will increment pm usage counter.
Forgetting to putting operation will result in reference leak.
Add missing pm_runtime_put_sync in some error paths.
Fixes: 9ac33b0ce81f ("CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220602030838.52057-1-linmq006@gmail.com
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/ti/clk-dra7-atl.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c
index beb672a215b6..a4b6f3ac2d34 100644
--- a/drivers/clk/ti/clk-dra7-atl.c
+++ b/drivers/clk/ti/clk-dra7-atl.c
@@ -252,14 +252,16 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
if (rc) {
pr_err("%s: failed to lookup atl clock %d\n", __func__,
i);
- return -EINVAL;
+ ret = -EINVAL;
+ goto pm_put;
}
clk = of_clk_get_from_provider(&clkspec);
if (IS_ERR(clk)) {
pr_err("%s: failed to get atl clock %d from provider\n",
__func__, i);
- return PTR_ERR(clk);
+ ret = PTR_ERR(clk);
+ goto pm_put;
}
cdesc = to_atl_desc(__clk_get_hw(clk));
@@ -292,8 +294,9 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
if (cdesc->enabled)
atl_clk_enable(__clk_get_hw(clk));
}
- pm_runtime_put_sync(cinfo->dev);
+pm_put:
+ pm_runtime_put_sync(cinfo->dev);
return ret;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 151/210] mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (149 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 150/210] clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 152/210] powerpc/math_emu/efp: Include module.h Greg Kroah-Hartman
` (61 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jack Wang, Jassi Brar, Sasha Levin
From: Jack Wang <jinpu.wang@ionos.com>
[ Upstream commit 6b207ce8a96a71e966831e3a13c38143ba9a73c1 ]
dma_map_sg return 0 on error, fix the error check, and return -EIO
to caller.
Fixes: dbc049eee730 ("mailbox: Add driver for Broadcom FlexRM ring manager")
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mailbox/bcm-flexrm-mailbox.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index 7e3ed2714630..6e5d59f40a18 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -626,15 +626,15 @@ static int flexrm_spu_dma_map(struct device *dev, struct brcm_message *msg)
rc = dma_map_sg(dev, msg->spu.src, sg_nents(msg->spu.src),
DMA_TO_DEVICE);
- if (rc < 0)
- return rc;
+ if (!rc)
+ return -EIO;
rc = dma_map_sg(dev, msg->spu.dst, sg_nents(msg->spu.dst),
DMA_FROM_DEVICE);
- if (rc < 0) {
+ if (!rc) {
dma_unmap_sg(dev, msg->spu.src, sg_nents(msg->spu.src),
DMA_TO_DEVICE);
- return rc;
+ return -EIO;
}
return 0;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 152/210] powerpc/math_emu/efp: Include module.h
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (150 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 151/210] mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 153/210] powerpc/sysdev/fsl_msi: Add missing of_node_put() Greg Kroah-Hartman
` (60 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Nathan Chancellor,
Christophe Leroy, Michael Ellerman, Sasha Levin
From: Nathan Chancellor <nathan@kernel.org>
[ Upstream commit cfe0d370e0788625ce0df3239aad07a2506c1796 ]
When building with a recent version of clang, there are a couple of
errors around the call to module_init():
arch/powerpc/math-emu/math_efp.c:927:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
module_init(spe_mathemu_init);
^
int
arch/powerpc/math-emu/math_efp.c:927:13: error: a parameter list without types is only allowed in a function definition
module_init(spe_mathemu_init);
^
2 errors generated.
module_init() is a macro, which is not getting expanded because module.h
is not included in this file. Add the include so that the macro can
expand properly, clearing up the build failure.
Fixes: ac6f120369ff ("powerpc/85xx: Workaroudn e500 CPU erratum A005")
[chleroy: added fixes tag]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/8403854a4c187459b2f4da3537f51227b70b9223.1662134272.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/math-emu/math_efp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/math-emu/math_efp.c b/arch/powerpc/math-emu/math_efp.c
index 581f404caa1d..b9848179dbaa 100644
--- a/arch/powerpc/math-emu/math_efp.c
+++ b/arch/powerpc/math-emu/math_efp.c
@@ -21,6 +21,7 @@
#include <linux/types.h>
#include <linux/prctl.h>
+#include <linux/module.h>
#include <linux/uaccess.h>
#include <asm/reg.h>
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 153/210] powerpc/sysdev/fsl_msi: Add missing of_node_put()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (151 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 152/210] powerpc/math_emu/efp: Include module.h Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 154/210] powerpc/pci_dn: " Greg Kroah-Hartman
` (59 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Michael Ellerman,
Sasha Levin, Miaoqian Lin
From: Liang He <windhl@126.com>
[ Upstream commit def435c04ee984a5f9ed2711b2bfe946936c6a21 ]
In fsl_setup_msi_irqs(), use of_node_put() to drop the reference
returned by of_parse_phandle().
Fixes: 895d603f945ba ("powerpc/fsl_msi: add support for the fsl, msi property in PCI nodes")
Co-authored-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220704145233.278539-1-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/sysdev/fsl_msi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 44cbf4c12ea1..d43d3d1b27ed 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -216,8 +216,10 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
dev_err(&pdev->dev,
"node %pOF has an invalid fsl,msi phandle %u\n",
hose->dn, np->phandle);
+ of_node_put(np);
return -EINVAL;
}
+ of_node_put(np);
}
for_each_pci_msi_entry(entry, pdev) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 154/210] powerpc/pci_dn: Add missing of_node_put()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (152 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 153/210] powerpc/sysdev/fsl_msi: Add missing of_node_put() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 155/210] powerpc/powernv: add missing of_node_put() in opal_export_attrs() Greg Kroah-Hartman
` (58 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang He, Michael Ellerman,
Tyrel Datwyler, Sasha Levin, Miaoqian Lin
From: Liang He <windhl@126.com>
[ Upstream commit 110a1fcb6c4d55144d8179983a475f17a1d6f832 ]
In pci_add_device_node_info(), use of_node_put() to drop the reference
to 'parent' returned by of_get_parent() to keep refcount balance.
Fixes: cca87d303c85 ("powerpc/pci: Refactor pci_dn")
Co-authored-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://lore.kernel.org/r/20220701131750.240170-1-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/pci_dn.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 0e45a446a8c7..45aa39d55f91 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -344,6 +344,7 @@ struct pci_dn *pci_add_device_node_info(struct pci_controller *hose,
INIT_LIST_HEAD(&pdn->list);
parent = of_get_parent(dn);
pdn->parent = parent ? PCI_DN(parent) : NULL;
+ of_node_put(parent);
if (pdn->parent)
list_add_tail(&pdn->list, &pdn->parent->child_list);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 155/210] powerpc/powernv: add missing of_node_put() in opal_export_attrs()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (153 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 154/210] powerpc/pci_dn: " Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 156/210] powerpc: Fix SPE Power ISA properties for e500v1 platforms Greg Kroah-Hartman
` (57 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheng Yongjun, Michael Ellerman, Sasha Levin
From: Zheng Yongjun <zhengyongjun3@huawei.com>
[ Upstream commit 71a92e99c47900cc164620948b3863382cec4f1a ]
After using 'np' returned by of_find_node_by_path(), of_node_put()
need be called to decrease the refcount.
Fixes: 11fe909d2362 ("powerpc/powernv: Add OPAL exports attributes to sysfs")
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220906141703.118192-1-zhengyongjun3@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/powernv/opal.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 597fcbf7a39e..c8bc9accd858 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -677,6 +677,7 @@ static void opal_export_attrs(void)
kobj = kobject_create_and_add("exports", opal_kobj);
if (!kobj) {
pr_warn("kobject_create_and_add() of exports failed\n");
+ of_node_put(np);
return;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 156/210] powerpc: Fix SPE Power ISA properties for e500v1 platforms
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (154 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 155/210] powerpc/powernv: add missing of_node_put() in opal_export_attrs() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 157/210] iommu/omap: Fix buffer overflow in debugfs Greg Kroah-Hartman
` (56 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pali Rohár, Michael Ellerman,
Sasha Levin
From: Pali Rohár <pali@kernel.org>
[ Upstream commit 37b9345ce7f4ab17538ea62def6f6d430f091355 ]
Commit 2eb28006431c ("powerpc/e500v2: Add Power ISA properties to comply
with ePAPR 1.1") introduced new include file e500v2_power_isa.dtsi and
should have used it for all e500v2 platforms. But apparently it was used
also for e500v1 platforms mpc8540, mpc8541, mpc8555 and mpc8560.
e500v1 cores compared to e500v2 do not support double precision floating
point SPE instructions. Hence power-isa-sp.fd should not be set on e500v1
platforms, which is in e500v2_power_isa.dtsi include file.
Fix this issue by introducing a new e500v1_power_isa.dtsi include file and
use it in all e500v1 device tree files.
Fixes: 2eb28006431c ("powerpc/e500v2: Add Power ISA properties to comply with ePAPR 1.1")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220902212103.22534-1-pali@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../boot/dts/fsl/e500v1_power_isa.dtsi | 51 +++++++++++++++++++
arch/powerpc/boot/dts/fsl/mpc8540ads.dts | 2 +-
arch/powerpc/boot/dts/fsl/mpc8541cds.dts | 2 +-
arch/powerpc/boot/dts/fsl/mpc8555cds.dts | 2 +-
arch/powerpc/boot/dts/fsl/mpc8560ads.dts | 2 +-
5 files changed, 55 insertions(+), 4 deletions(-)
create mode 100644 arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi
diff --git a/arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi b/arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi
new file mode 100644
index 000000000000..7e2a90cde72e
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi
@@ -0,0 +1,51 @@
+/*
+ * e500v1 Power ISA Device Tree Source (include)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/ {
+ cpus {
+ power-isa-version = "2.03";
+ power-isa-b; // Base
+ power-isa-e; // Embedded
+ power-isa-atb; // Alternate Time Base
+ power-isa-cs; // Cache Specification
+ power-isa-e.le; // Embedded.Little-Endian
+ power-isa-e.pm; // Embedded.Performance Monitor
+ power-isa-ecl; // Embedded Cache Locking
+ power-isa-mmc; // Memory Coherence
+ power-isa-sp; // Signal Processing Engine
+ power-isa-sp.fs; // SPE.Embedded Float Scalar Single
+ power-isa-sp.fv; // SPE.Embedded Float Vector
+ mmu-type = "power-embedded";
+ };
+};
diff --git a/arch/powerpc/boot/dts/fsl/mpc8540ads.dts b/arch/powerpc/boot/dts/fsl/mpc8540ads.dts
index e6d0b166d68d..b4314aa6769c 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8540ads.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8540ads.dts
@@ -11,7 +11,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8540ADS";
diff --git a/arch/powerpc/boot/dts/fsl/mpc8541cds.dts b/arch/powerpc/boot/dts/fsl/mpc8541cds.dts
index 9fa2c734a988..48492c621edf 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8541cds.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8541cds.dts
@@ -11,7 +11,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8541CDS";
diff --git a/arch/powerpc/boot/dts/fsl/mpc8555cds.dts b/arch/powerpc/boot/dts/fsl/mpc8555cds.dts
index 272f08caea92..325c817dedeb 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8555cds.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8555cds.dts
@@ -11,7 +11,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8555CDS";
diff --git a/arch/powerpc/boot/dts/fsl/mpc8560ads.dts b/arch/powerpc/boot/dts/fsl/mpc8560ads.dts
index 7a822b08aa35..b5fb5ae3ed68 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8560ads.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8560ads.dts
@@ -11,7 +11,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8560ADS";
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 157/210] iommu/omap: Fix buffer overflow in debugfs
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (155 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 156/210] powerpc: Fix SPE Power ISA properties for e500v1 platforms Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 158/210] iommu/iova: Fix module config properly Greg Kroah-Hartman
` (55 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Robin Murphy,
Laurent Pinchart, Joerg Roedel, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 184233a5202786b20220acd2d04ddf909ef18f29 ]
There are two issues here:
1) The "len" variable needs to be checked before the very first write.
Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a
buffer overflow.
2) The snprintf() function returns the number of bytes that *would* have
been copied if there were enough space. But we want to know the
number of bytes which were *actually* copied so use scnprintf()
instead.
Fixes: bd4396f09a4a ("iommu/omap: Consolidate OMAP IOMMU modules")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/YuvYh1JbE3v+abd5@kili
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/omap-iommu-debug.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c
index cec33e90e399..a15c4d99b888 100644
--- a/drivers/iommu/omap-iommu-debug.c
+++ b/drivers/iommu/omap-iommu-debug.c
@@ -35,12 +35,12 @@ static inline bool is_omap_iommu_detached(struct omap_iommu *obj)
ssize_t bytes; \
const char *str = "%20s: %08x\n"; \
const int maxcol = 32; \
- bytes = snprintf(p, maxcol, str, __stringify(name), \
+ if (len < maxcol) \
+ goto out; \
+ bytes = scnprintf(p, maxcol, str, __stringify(name), \
iommu_read_reg(obj, MMU_##name)); \
p += bytes; \
len -= bytes; \
- if (len < maxcol) \
- goto out; \
} while (0)
static ssize_t
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 158/210] iommu/iova: Fix module config properly
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (156 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 157/210] iommu/omap: Fix buffer overflow in debugfs Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 159/210] crypto: cavium - prevent integer overflow loading firmware Greg Kroah-Hartman
` (54 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thierry Reding, John Garry,
Robin Murphy, Thierry Reding, Joerg Roedel, Sasha Levin
From: Robin Murphy <robin.murphy@arm.com>
[ Upstream commit 4f58330fcc8482aa90674e1f40f601e82f18ed4a ]
IOMMU_IOVA is intended to be an optional library for users to select as
and when they desire. Since it can be a module now, this means that
built-in code which has chosen not to select it should not fail to link
if it happens to have selected as a module by someone else. Replace
IS_ENABLED() with IS_REACHABLE() to do the right thing.
CC: Thierry Reding <thierry.reding@gmail.com>
Reported-by: John Garry <john.garry@huawei.com>
Fixes: 15bbdec3931e ("iommu: Make the iova library a module")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/548c2f683ca379aface59639a8f0cccc3a1ac050.1663069227.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/iova.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/iova.h b/include/linux/iova.h
index 7d23bbb887f2..641e62700ef3 100644
--- a/include/linux/iova.h
+++ b/include/linux/iova.h
@@ -131,7 +131,7 @@ static inline unsigned long iova_pfn(struct iova_domain *iovad, dma_addr_t iova)
return iova >> iova_shift(iovad);
}
-#if IS_ENABLED(CONFIG_IOMMU_IOVA)
+#if IS_REACHABLE(CONFIG_IOMMU_IOVA)
int iova_cache_get(void);
void iova_cache_put(void);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 159/210] crypto: cavium - prevent integer overflow loading firmware
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (157 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 158/210] iommu/iova: Fix module config properly Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 160/210] f2fs: fix race condition on setting FI_NO_EXTENT flag Greg Kroah-Hartman
` (53 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Herbert Xu, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 2526d6bf27d15054bb0778b2f7bc6625fd934905 ]
The "code_length" value comes from the firmware file. If your firmware
is untrusted realistically there is probably very little you can do to
protect yourself. Still we try to limit the damage as much as possible.
Also Smatch marks any data read from the filesystem as untrusted and
prints warnings if it not capped correctly.
The "ntohl(ucode->code_length) * 2" multiplication can have an
integer overflow.
Fixes: 9e2c7d99941d ("crypto: cavium - Add Support for Octeon-tx CPT Engine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/cavium/cpt/cptpf_main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/cavium/cpt/cptpf_main.c b/drivers/crypto/cavium/cpt/cptpf_main.c
index 34a6d8bf229e..dc34326e80df 100644
--- a/drivers/crypto/cavium/cpt/cptpf_main.c
+++ b/drivers/crypto/cavium/cpt/cptpf_main.c
@@ -257,6 +257,7 @@ static int cpt_ucode_load_fw(struct cpt_device *cpt, const u8 *fw, bool is_ae)
const struct firmware *fw_entry;
struct device *dev = &cpt->pdev->dev;
struct ucode_header *ucode;
+ unsigned int code_length;
struct microcode *mcode;
int j, ret = 0;
@@ -267,11 +268,12 @@ static int cpt_ucode_load_fw(struct cpt_device *cpt, const u8 *fw, bool is_ae)
ucode = (struct ucode_header *)fw_entry->data;
mcode = &cpt->mcode[cpt->next_mc_idx];
memcpy(mcode->version, (u8 *)fw_entry->data, CPT_UCODE_VERSION_SZ);
- mcode->code_size = ntohl(ucode->code_length) * 2;
- if (!mcode->code_size) {
+ code_length = ntohl(ucode->code_length);
+ if (code_length == 0 || code_length >= INT_MAX / 2) {
ret = -EINVAL;
goto fw_release;
}
+ mcode->code_size = code_length * 2;
mcode->is_ae = is_ae;
mcode->core_mask = 0ULL;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 160/210] f2fs: fix race condition on setting FI_NO_EXTENT flag
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (158 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 159/210] crypto: cavium - prevent integer overflow loading firmware Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 161/210] ACPI: video: Add Toshiba Satellite/Portege Z830 quirk Greg Kroah-Hartman
` (52 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Qilong, Chao Yu, Jaegeuk Kim,
Sasha Levin
From: Zhang Qilong <zhangqilong3@huawei.com>
[ Upstream commit 07725adc55c0a414c10acb5c8c86cea34b95ddef ]
The following scenarios exist.
process A: process B:
->f2fs_drop_extent_tree ->f2fs_update_extent_cache_range
->f2fs_update_extent_tree_range
->write_lock
->set_inode_flag
->is_inode_flag_set
->__free_extent_tree // Shouldn't
// have been
// cleaned up
// here
->write_lock
In this case, the "FI_NO_EXTENT" flag is set between
f2fs_update_extent_tree_range and is_inode_flag_set
by other process. it leads to clearing the whole exten
tree which should not have happened. And we fix it by
move the setting it to the range of write_lock.
Fixes:5f281fab9b9a3 ("f2fs: disable extent_cache for fcollapse/finsert inodes")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/extent_cache.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index aff6c2ed1c02..042c9d4f73cf 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -709,9 +709,8 @@ void f2fs_drop_extent_tree(struct inode *inode)
if (!f2fs_may_extent_tree(inode))
return;
- set_inode_flag(inode, FI_NO_EXTENT);
-
write_lock(&et->lock);
+ set_inode_flag(inode, FI_NO_EXTENT);
__free_extent_tree(sbi, et);
__drop_largest_extent(inode, 0, UINT_MAX);
write_unlock(&et->lock);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 161/210] ACPI: video: Add Toshiba Satellite/Portege Z830 quirk
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (159 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 160/210] f2fs: fix race condition on setting FI_NO_EXTENT flag Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 162/210] MIPS: BCM47XX: Cast memcmp() of function to (void *) Greg Kroah-Hartman
` (51 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hans de Goede, Arvid Norlander,
Rafael J. Wysocki, Sasha Levin
From: Arvid Norlander <lkml@vorpal.se>
[ Upstream commit 574160b8548deff8b80b174f03201e94ab8431e2 ]
Toshiba Satellite Z830 needs the quirk video_disable_backlight_sysfs_if
for proper backlight control after suspend/resume cycles.
Toshiba Portege Z830 is simply the same laptop rebranded for certain
markets (I looked through the manual to other language sections to confirm
this) and thus also needs this quirk.
Thanks to Hans de Goede for suggesting this fix.
Link: https://www.spinics.net/lists/platform-driver-x86/msg34394.html
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Arvid Norlander <lkml@vorpal.se>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Arvid Norlander <lkml@vorpal.se>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpi_video.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 5a69260edf80..cc228e5ad2b3 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -511,6 +511,22 @@ static const struct dmi_system_id video_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"),
},
},
+ {
+ .callback = video_disable_backlight_sysfs_if,
+ .ident = "Toshiba Satellite Z830",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE Z830"),
+ },
+ },
+ {
+ .callback = video_disable_backlight_sysfs_if,
+ .ident = "Toshiba Portege Z830",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE Z830"),
+ },
+ },
/*
* Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set
* but the IDs actually follow the Device ID Scheme.
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 162/210] MIPS: BCM47XX: Cast memcmp() of function to (void *)
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (160 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 161/210] ACPI: video: Add Toshiba Satellite/Portege Z830 quirk Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 163/210] powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue Greg Kroah-Hartman
` (50 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hauke Mehrtens,
Rafał Miłecki, Thomas Bogendoerfer, linux-mips,
Nathan Chancellor, Nick Desaulniers, llvm, kernel test robot,
Kees Cook, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit 0dedcf6e3301836eb70cfa649052e7ce4fcd13ba ]
Clang is especially sensitive about argument type matching when using
__overloaded functions (like memcmp(), etc). Help it see that function
pointers are just "void *". Avoids this error:
arch/mips/bcm47xx/prom.c:89:8: error: no matching function for call to 'memcmp'
if (!memcmp(prom_init, prom_init + mem, 32))
^~~~~~
include/linux/string.h:156:12: note: candidate function not viable: no known conversion from 'void (void)' to 'const void *' for 1st argument extern int memcmp(const void *,const void *,__kernel_size_t);
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: "Rafał Miłecki" <zajec5@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: llvm@lists.linux.dev
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202209080652.sz2d68e5-lkp@intel.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/bcm47xx/prom.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c
index 135a5407f015..d26d9a6f6ee7 100644
--- a/arch/mips/bcm47xx/prom.c
+++ b/arch/mips/bcm47xx/prom.c
@@ -85,7 +85,7 @@ static __init void prom_init_mem(void)
pr_debug("Assume 128MB RAM\n");
break;
}
- if (!memcmp(prom_init, prom_init + mem, 32))
+ if (!memcmp((void *)prom_init, (void *)prom_init + mem, 32))
break;
}
lowmem = mem;
@@ -162,7 +162,7 @@ void __init bcm47xx_prom_highmem_init(void)
off = EXTVBASE + __pa(off);
for (extmem = 128 << 20; extmem < 512 << 20; extmem <<= 1) {
- if (!memcmp(prom_init, (void *)(off + extmem), 16))
+ if (!memcmp((void *)prom_init, (void *)(off + extmem), 16))
break;
}
extmem -= lowmem;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 163/210] powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (161 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 162/210] MIPS: BCM47XX: Cast memcmp() of function to (void *) Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 164/210] thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash Greg Kroah-Hartman
` (49 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chao Qin, Zhang Rui,
Rafael J. Wysocki, Sasha Levin
From: Chao Qin <chao.qin@intel.com>
[ Upstream commit 2d93540014387d1c73b9ccc4d7895320df66d01b ]
When value < time_unit, the parameter of ilog2() will be zero and
the return value is -1. u64(-1) is too large for shift exponent
and then will trigger shift-out-of-bounds:
shift exponent 18446744073709551615 is too large for 32-bit type 'int'
Call Trace:
rapl_compute_time_window_core
rapl_write_data_raw
set_time_window
store_constraint_time_window_us
Signed-off-by: Chao Qin <chao.qin@intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/powercap/intel_rapl.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 54ddd78924dd..5c07e04db421 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1066,6 +1066,9 @@ static u64 rapl_compute_time_window_core(struct rapl_package *rp, u64 value,
y = value & 0x1f;
value = (1 << y) * (4 + f) * rp->time_unit / 4;
} else {
+ if (value < rp->time_unit)
+ return 0;
+
do_div(value, rp->time_unit);
y = ilog2(value);
f = div64_u64(4 * (value - (1 << y)), 1 << y);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 164/210] thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (162 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 163/210] powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 165/210] x86/entry: Work around Clang __bdos() bug Greg Kroah-Hartman
` (48 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chen Yu, Srinivas Pandruvada,
Rafael J. Wysocki, Sasha Levin
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ Upstream commit 68b99e94a4a2db6ba9b31fe0485e057b9354a640 ]
When CPU 0 is offline and intel_powerclamp is used to inject
idle, it generates kernel BUG:
BUG: using smp_processor_id() in preemptible [00000000] code: bash/15687
caller is debug_smp_processor_id+0x17/0x20
CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+ #57
Call Trace:
<TASK>
dump_stack_lvl+0x49/0x63
dump_stack+0x10/0x16
check_preemption_disabled+0xdd/0xe0
debug_smp_processor_id+0x17/0x20
powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp]
...
...
Here CPU 0 is the control CPU by default and changed to the current CPU,
if CPU 0 offlined. This check has to be performed under cpus_read_lock(),
hence the above warning.
Use get_cpu() instead of smp_processor_id() to avoid this BUG.
Suggested-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/thermal/intel_powerclamp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index c3293fa2bb1b..7ff59f86a543 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -550,8 +550,10 @@ static int start_power_clamp(void)
/* prefer BSP */
control_cpu = 0;
- if (!cpu_online(control_cpu))
- control_cpu = smp_processor_id();
+ if (!cpu_online(control_cpu)) {
+ control_cpu = get_cpu();
+ put_cpu();
+ }
clamping = true;
schedule_delayed_work(&poll_pkg_cstate_work, 0);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 165/210] x86/entry: Work around Clang __bdos() bug
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (163 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 164/210] thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 166/210] NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data Greg Kroah-Hartman
` (47 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Juergen Gross, Boris Ostrovsky,
Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, x86,
H. Peter Anvin, xen-devel, Kees Cook, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit 3e1730842f142add55dc658929221521a9ea62b6 ]
Clang produces a false positive when building with CONFIG_FORTIFY_SOURCE=y
and CONFIG_UBSAN_BOUNDS=y when operating on an array with a dynamic
offset. Work around this by using a direct assignment of an empty
instance. Avoids this warning:
../include/linux/fortify-string.h:309:4: warning: call to __write_overflow_field declared with 'warn
ing' attribute: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Wat
tribute-warning]
__write_overflow_field(p_size_field, size);
^
which was isolated to the memset() call in xen_load_idt().
Note that this looks very much like another bug that was worked around:
https://github.com/ClangBuiltLinux/linux/issues/1592
Cc: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: xen-devel@lists.xenproject.org
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/lkml/41527d69-e8ab-3f86-ff37-6b298c01d5bc@oracle.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/xen/enlighten_pv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 88d084a57b14..3f38541c28d2 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -753,6 +753,7 @@ static void xen_load_idt(const struct desc_ptr *desc)
{
static DEFINE_SPINLOCK(lock);
static struct trap_info traps[257];
+ static const struct trap_info zero = { };
unsigned out;
trace_xen_cpu_load_idt(desc);
@@ -762,7 +763,7 @@ static void xen_load_idt(const struct desc_ptr *desc)
memcpy(this_cpu_ptr(&idt_desc), desc, sizeof(idt_desc));
out = xen_convert_trap_info(desc, traps, false);
- memset(&traps[out], 0, sizeof(traps[0]));
+ traps[out] = zero;
xen_mc_flush();
if (HYPERVISOR_set_trap_table(traps))
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 166/210] NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (164 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 165/210] x86/entry: Work around Clang __bdos() bug Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 167/210] wifi: brcmfmac: fix invalid address access when enabling SCAN log level Greg Kroah-Hartman
` (46 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Anna Schumaker, Chuck Lever, Sasha Levin
From: Anna Schumaker <Anna.Schumaker@Netapp.com>
[ Upstream commit 06981d560606ac48d61e5f4fff6738b925c93173 ]
This was discussed with Chuck as part of this patch set. Returning
nfserr_resource was decided to not be the best error message here, and
he suggested changing to nfserr_serverfault instead.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Link: https://lore.kernel.org/linux-nfs/20220907195259.926736-1-anna@kernel.org/T/#t
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/nfsd/nfs4xdr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 2e7349b2dd4d..c5c10b7dc63e 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3550,7 +3550,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
if (resp->xdr.buf->page_len &&
test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags)) {
WARN_ON_ONCE(1);
- return nfserr_resource;
+ return nfserr_serverfault;
}
xdr_commit_encode(xdr);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 167/210] wifi: brcmfmac: fix invalid address access when enabling SCAN log level
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (165 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 166/210] NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 168/210] openvswitch: Fix double reporting of drops in dropwatch Greg Kroah-Hartman
` (45 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wright Feng, Chi-hsien Lin,
Ahmad Fatoum, Alvin Šipraga, Kalle Valo, Sasha Levin
From: Wright Feng <wright.feng@cypress.com>
[ Upstream commit aa666b68e73fc06d83c070d96180b9010cf5a960 ]
The variable i is changed when setting random MAC address and causes
invalid address access when printing the value of pi->reqs[i]->reqid.
We replace reqs index with ri to fix the issue.
[ 136.726473] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[ 136.737365] Mem abort info:
[ 136.740172] ESR = 0x96000004
[ 136.743359] Exception class = DABT (current EL), IL = 32 bits
[ 136.749294] SET = 0, FnV = 0
[ 136.752481] EA = 0, S1PTW = 0
[ 136.755635] Data abort info:
[ 136.758514] ISV = 0, ISS = 0x00000004
[ 136.762487] CM = 0, WnR = 0
[ 136.765522] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005c4e2577
[ 136.772265] [0000000000000000] pgd=0000000000000000
[ 136.777160] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 136.782732] Modules linked in: brcmfmac(O) brcmutil(O) cfg80211(O) compat(O)
[ 136.789788] Process wificond (pid: 3175, stack limit = 0x00000000053048fb)
[ 136.796664] CPU: 3 PID: 3175 Comm: wificond Tainted: G O 4.19.42-00001-g531a5f5 #1
[ 136.805532] Hardware name: Freescale i.MX8MQ EVK (DT)
[ 136.810584] pstate: 60400005 (nZCv daif +PAN -UAO)
[ 136.815429] pc : brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[ 136.821811] lr : brcmf_pno_config_sched_scans+0x67c/0xa80 [brcmfmac]
[ 136.828162] sp : ffff00000e9a3880
[ 136.831475] x29: ffff00000e9a3890 x28: ffff800020543400
[ 136.836786] x27: ffff8000b1008880 x26: ffff0000012bf6a0
[ 136.842098] x25: ffff80002054345c x24: ffff800088d22400
[ 136.847409] x23: ffff0000012bf638 x22: ffff0000012bf6d8
[ 136.852721] x21: ffff8000aced8fc0 x20: ffff8000ac164400
[ 136.858032] x19: ffff00000e9a3946 x18: 0000000000000000
[ 136.863343] x17: 0000000000000000 x16: 0000000000000000
[ 136.868655] x15: ffff0000093f3b37 x14: 0000000000000050
[ 136.873966] x13: 0000000000003135 x12: 0000000000000000
[ 136.879277] x11: 0000000000000000 x10: ffff000009a61888
[ 136.884589] x9 : 000000000000000f x8 : 0000000000000008
[ 136.889900] x7 : 303a32303d726464 x6 : ffff00000a1f957d
[ 136.895211] x5 : 0000000000000000 x4 : ffff00000e9a3942
[ 136.900523] x3 : 0000000000000000 x2 : ffff0000012cead8
[ 136.905834] x1 : ffff0000012bf6d8 x0 : 0000000000000000
[ 136.911146] Call trace:
[ 136.913623] brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[ 136.919658] brcmf_pno_start_sched_scan+0xa4/0x118 [brcmfmac]
[ 136.925430] brcmf_cfg80211_sched_scan_start+0x80/0xe0 [brcmfmac]
[ 136.931636] nl80211_start_sched_scan+0x140/0x308 [cfg80211]
[ 136.937298] genl_rcv_msg+0x358/0x3f4
[ 136.940960] netlink_rcv_skb+0xb4/0x118
[ 136.944795] genl_rcv+0x34/0x48
[ 136.947935] netlink_unicast+0x264/0x300
[ 136.951856] netlink_sendmsg+0x2e4/0x33c
[ 136.955781] __sys_sendto+0x120/0x19c
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220722115632.620681-4-alvin@pqrs.dk
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/broadcom/brcm80211/brcmfmac/pno.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
index ffa243e2e2d0..581a23549ee5 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
@@ -163,12 +163,12 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
struct brcmf_pno_macaddr_le pfn_mac;
u8 *mac_addr = NULL;
u8 *mac_mask = NULL;
- int err, i;
+ int err, i, ri;
- for (i = 0; i < pi->n_reqs; i++)
- if (pi->reqs[i]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
- mac_addr = pi->reqs[i]->mac_addr;
- mac_mask = pi->reqs[i]->mac_addr_mask;
+ for (ri = 0; ri < pi->n_reqs; ri++)
+ if (pi->reqs[ri]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+ mac_addr = pi->reqs[ri]->mac_addr;
+ mac_mask = pi->reqs[ri]->mac_addr_mask;
break;
}
@@ -190,7 +190,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
pfn_mac.mac[0] |= 0x02;
brcmf_dbg(SCAN, "enabling random mac: reqid=%llu mac=%pM\n",
- pi->reqs[i]->reqid, pfn_mac.mac);
+ pi->reqs[ri]->reqid, pfn_mac.mac);
err = brcmf_fil_iovar_data_set(ifp, "pfn_macaddr", &pfn_mac,
sizeof(pfn_mac));
if (err)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 168/210] openvswitch: Fix double reporting of drops in dropwatch
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (166 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 167/210] wifi: brcmfmac: fix invalid address access when enabling SCAN log level Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 169/210] openvswitch: Fix overreporting " Greg Kroah-Hartman
` (44 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mike Pattrick, David S. Miller, Sasha Levin
From: Mike Pattrick <mkp@redhat.com>
[ Upstream commit 1100248a5c5ccd57059eb8d02ec077e839a23826 ]
Frames sent to userspace can be reported as dropped in
ovs_dp_process_packet, however, if they are dropped in the netlink code
then netlink_attachskb will report the same frame as dropped.
This patch checks for error codes which indicate that the frame has
already been freed.
Signed-off-by: Mike Pattrick <mkp@redhat.com>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2109946
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/openvswitch/datapath.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 3248cf04d0b3..42616aca0ce4 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -276,10 +276,17 @@ void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key)
upcall.portid = ovs_vport_find_upcall_portid(p, skb);
upcall.mru = OVS_CB(skb)->mru;
error = ovs_dp_upcall(dp, skb, key, &upcall, 0);
- if (unlikely(error))
- kfree_skb(skb);
- else
+ switch (error) {
+ case 0:
+ case -EAGAIN:
+ case -ERESTARTSYS:
+ case -EINTR:
consume_skb(skb);
+ break;
+ default:
+ kfree_skb(skb);
+ break;
+ }
stats_counter = &stats->n_missed;
goto out;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 169/210] openvswitch: Fix overreporting of drops in dropwatch
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (167 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 168/210] openvswitch: Fix double reporting of drops in dropwatch Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 170/210] tcp: annotate data-race around tcp_md5sig_pool_populated Greg Kroah-Hartman
` (43 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mike Pattrick, David S. Miller, Sasha Levin
From: Mike Pattrick <mkp@redhat.com>
[ Upstream commit c21ab2afa2c64896a7f0e3cbc6845ec63dcfad2e ]
Currently queue_userspace_packet will call kfree_skb for all frames,
whether or not an error occurred. This can result in a single dropped
frame being reported as multiple drops in dropwatch. This functions
caller may also call kfree_skb in case of an error. This patch will
consume the skbs instead and allow caller's to use kfree_skb.
Signed-off-by: Mike Pattrick <mkp@redhat.com>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2109957
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/openvswitch/datapath.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 42616aca0ce4..8319628ab428 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -553,8 +553,9 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
out:
if (err)
skb_tx_error(skb);
- kfree_skb(user_skb);
- kfree_skb(nskb);
+ consume_skb(user_skb);
+ consume_skb(nskb);
+
return err;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 170/210] tcp: annotate data-race around tcp_md5sig_pool_populated
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (168 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 169/210] openvswitch: Fix overreporting " Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 171/210] wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg() Greg Kroah-Hartman
` (42 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Abhishek Shah, Eric Dumazet,
David S. Miller, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit aacd467c0a576e5e44d2de4205855dc0fe43f6fb ]
tcp_md5sig_pool_populated can be read while another thread
changes its value.
The race has no consequence because allocations
are protected with tcp_md5sig_mutex.
This patch adds READ_ONCE() and WRITE_ONCE() to document
the race and silence KCSAN.
Reported-by: Abhishek Shah <abhishek.shah@columbia.edu>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv4/tcp.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 783d0cd4fcbd..3a5f5bcedb3b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3318,12 +3318,16 @@ static void __tcp_alloc_md5sig_pool(void)
* to memory. See smp_rmb() in tcp_get_md5sig_pool()
*/
smp_wmb();
- tcp_md5sig_pool_populated = true;
+ /* Paired with READ_ONCE() from tcp_alloc_md5sig_pool()
+ * and tcp_get_md5sig_pool().
+ */
+ WRITE_ONCE(tcp_md5sig_pool_populated, true);
}
bool tcp_alloc_md5sig_pool(void)
{
- if (unlikely(!tcp_md5sig_pool_populated)) {
+ /* Paired with WRITE_ONCE() from __tcp_alloc_md5sig_pool() */
+ if (unlikely(!READ_ONCE(tcp_md5sig_pool_populated))) {
mutex_lock(&tcp_md5sig_mutex);
if (!tcp_md5sig_pool_populated)
@@ -3331,7 +3335,8 @@ bool tcp_alloc_md5sig_pool(void)
mutex_unlock(&tcp_md5sig_mutex);
}
- return tcp_md5sig_pool_populated;
+ /* Paired with WRITE_ONCE() from __tcp_alloc_md5sig_pool() */
+ return READ_ONCE(tcp_md5sig_pool_populated);
}
EXPORT_SYMBOL(tcp_alloc_md5sig_pool);
@@ -3347,7 +3352,8 @@ struct tcp_md5sig_pool *tcp_get_md5sig_pool(void)
{
local_bh_disable();
- if (tcp_md5sig_pool_populated) {
+ /* Paired with WRITE_ONCE() from __tcp_alloc_md5sig_pool() */
+ if (READ_ONCE(tcp_md5sig_pool_populated)) {
/* coupled with smp_wmb() in __tcp_alloc_md5sig_pool() */
smp_rmb();
return this_cpu_ptr(&tcp_md5sig_pool);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 171/210] wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (169 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 170/210] tcp: annotate data-race around tcp_md5sig_pool_populated Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 172/210] xfrm: Update ipcomp_scratches with NULL when freed Greg Kroah-Hartman
` (41 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot, Tetsuo Handa,
Toke Høiland-Jørgensen, Kalle Valo, Sasha Levin
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
[ Upstream commit b383e8abed41cc6ff1a3b34de75df9397fa4878c ]
syzbot is reporting uninit value at ath9k_htc_rx_msg() [1], for
ioctl(USB_RAW_IOCTL_EP_WRITE) can call ath9k_hif_usb_rx_stream() with
pkt_len = 0 but ath9k_hif_usb_rx_stream() uses
__dev_alloc_skb(pkt_len + 32, GFP_ATOMIC) based on an assumption that
pkt_len is valid. As a result, ath9k_hif_usb_rx_stream() allocates skb
with uninitialized memory and ath9k_htc_rx_msg() is reading from
uninitialized memory.
Since bytes accessed by ath9k_htc_rx_msg() is not known until
ath9k_htc_rx_msg() is called, it would be difficult to check minimal valid
pkt_len at "if (pkt_len > 2 * MAX_RX_BUF_SIZE) {" line in
ath9k_hif_usb_rx_stream().
We have two choices. One is to workaround by adding __GFP_ZERO so that
ath9k_htc_rx_msg() sees 0 if pkt_len is invalid. The other is to let
ath9k_htc_rx_msg() validate pkt_len before accessing. This patch chose
the latter.
Note that I'm not sure threshold condition is correct, for I can't find
details on possible packet length used by this protocol.
Link: https://syzkaller.appspot.com/bug?extid=2ca247c2d60c7023de7f [1]
Reported-by: syzbot <syzbot+2ca247c2d60c7023de7f@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/7acfa1be-4b5c-b2ce-de43-95b0593fb3e5@I-love.SAKURA.ne.jp
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath9k/htc_hst.c | 43 +++++++++++++++---------
1 file changed, 28 insertions(+), 15 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index e37de14bc502..6d69cf69fd86 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -367,33 +367,27 @@ void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
}
static void ath9k_htc_fw_panic_report(struct htc_target *htc_handle,
- struct sk_buff *skb)
+ struct sk_buff *skb, u32 len)
{
uint32_t *pattern = (uint32_t *)skb->data;
- switch (*pattern) {
- case 0x33221199:
- {
+ if (*pattern == 0x33221199 && len >= sizeof(struct htc_panic_bad_vaddr)) {
struct htc_panic_bad_vaddr *htc_panic;
htc_panic = (struct htc_panic_bad_vaddr *) skb->data;
dev_err(htc_handle->dev, "ath: firmware panic! "
"exccause: 0x%08x; pc: 0x%08x; badvaddr: 0x%08x.\n",
htc_panic->exccause, htc_panic->pc,
htc_panic->badvaddr);
- break;
- }
- case 0x33221299:
- {
+ return;
+ }
+ if (*pattern == 0x33221299) {
struct htc_panic_bad_epid *htc_panic;
htc_panic = (struct htc_panic_bad_epid *) skb->data;
dev_err(htc_handle->dev, "ath: firmware panic! "
"bad epid: 0x%08x\n", htc_panic->epid);
- break;
- }
- default:
- dev_err(htc_handle->dev, "ath: unknown panic pattern!\n");
- break;
+ return;
}
+ dev_err(htc_handle->dev, "ath: unknown panic pattern!\n");
}
/*
@@ -414,16 +408,26 @@ void ath9k_htc_rx_msg(struct htc_target *htc_handle,
if (!htc_handle || !skb)
return;
+ /* A valid message requires len >= 8.
+ *
+ * sizeof(struct htc_frame_hdr) == 8
+ * sizeof(struct htc_ready_msg) == 8
+ * sizeof(struct htc_panic_bad_vaddr) == 16
+ * sizeof(struct htc_panic_bad_epid) == 8
+ */
+ if (unlikely(len < sizeof(struct htc_frame_hdr)))
+ goto invalid;
htc_hdr = (struct htc_frame_hdr *) skb->data;
epid = htc_hdr->endpoint_id;
if (epid == 0x99) {
- ath9k_htc_fw_panic_report(htc_handle, skb);
+ ath9k_htc_fw_panic_report(htc_handle, skb, len);
kfree_skb(skb);
return;
}
if (epid < 0 || epid >= ENDPOINT_MAX) {
+invalid:
if (pipe_id != USB_REG_IN_PIPE)
dev_kfree_skb_any(skb);
else
@@ -435,21 +439,30 @@ void ath9k_htc_rx_msg(struct htc_target *htc_handle,
/* Handle trailer */
if (htc_hdr->flags & HTC_FLAGS_RECV_TRAILER) {
- if (be32_to_cpu(*(__be32 *) skb->data) == 0x00C60000)
+ if (be32_to_cpu(*(__be32 *) skb->data) == 0x00C60000) {
/* Move past the Watchdog pattern */
htc_hdr = (struct htc_frame_hdr *)(skb->data + 4);
+ len -= 4;
+ }
}
/* Get the message ID */
+ if (unlikely(len < sizeof(struct htc_frame_hdr) + sizeof(__be16)))
+ goto invalid;
msg_id = (__be16 *) ((void *) htc_hdr +
sizeof(struct htc_frame_hdr));
/* Now process HTC messages */
switch (be16_to_cpu(*msg_id)) {
case HTC_MSG_READY_ID:
+ if (unlikely(len < sizeof(struct htc_ready_msg)))
+ goto invalid;
htc_process_target_rdy(htc_handle, htc_hdr);
break;
case HTC_MSG_CONNECT_SERVICE_RESPONSE_ID:
+ if (unlikely(len < sizeof(struct htc_frame_hdr) +
+ sizeof(struct htc_conn_svc_rspmsg)))
+ goto invalid;
htc_process_conn_rsp(htc_handle, htc_hdr);
break;
default:
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 172/210] xfrm: Update ipcomp_scratches with NULL when freed
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (170 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 171/210] wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 173/210] wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() Greg Kroah-Hartman
` (40 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Herbert Xu,
syzbot+5ec9bb042ddfe9644773, Khalid Masum, Steffen Klassert,
Sasha Levin
From: Khalid Masum <khalid.masum.92@gmail.com>
[ Upstream commit 8a04d2fc700f717104bfb95b0f6694e448a4537f ]
Currently if ipcomp_alloc_scratches() fails to allocate memory
ipcomp_scratches holds obsolete address. So when we try to free the
percpu scratches using ipcomp_free_scratches() it tries to vfree non
existent vm area. Described below:
static void * __percpu *ipcomp_alloc_scratches(void)
{
...
scratches = alloc_percpu(void *);
if (!scratches)
return NULL;
ipcomp_scratches does not know about this allocation failure.
Therefore holding the old obsolete address.
...
}
So when we free,
static void ipcomp_free_scratches(void)
{
...
scratches = ipcomp_scratches;
Assigning obsolete address from ipcomp_scratches
if (!scratches)
return;
for_each_possible_cpu(i)
vfree(*per_cpu_ptr(scratches, i));
Trying to free non existent page, causing warning: trying to vfree
existent vm area.
...
}
Fix this breakage by updating ipcomp_scrtches with NULL when scratches
is freed
Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Reported-by: syzbot+5ec9bb042ddfe9644773@syzkaller.appspotmail.com
Tested-by: syzbot+5ec9bb042ddfe9644773@syzkaller.appspotmail.com
Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/xfrm/xfrm_ipcomp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index a00ec715aa46..32aed1d0f6ee 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -216,6 +216,7 @@ static void ipcomp_free_scratches(void)
vfree(*per_cpu_ptr(scratches, i));
free_percpu(scratches);
+ ipcomp_scratches = NULL;
}
static void * __percpu *ipcomp_alloc_scratches(void)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 173/210] wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (171 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 172/210] xfrm: Update ipcomp_scratches with NULL when freed Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 174/210] Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create() Greg Kroah-Hartman
` (39 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Coffin, Kalle Valo, Sasha Levin
From: Alexander Coffin <alex.coffin@matician.com>
[ Upstream commit 3f42faf6db431e04bf942d2ebe3ae88975723478 ]
> ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb);
may be schedule, and then complete before the line
> ndev->stats.tx_bytes += skb->len;
[ 46.912801] ==================================================================
[ 46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]
[ 46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328
[ 46.935991]
[ 46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G O 5.4.199-[REDACTED] #1
[ 46.947255] Hardware name: [REDACTED]
[ 46.954568] Call trace:
[ 46.957037] dump_backtrace+0x0/0x2b8
[ 46.960719] show_stack+0x24/0x30
[ 46.964052] dump_stack+0x128/0x194
[ 46.967557] print_address_description.isra.0+0x64/0x380
[ 46.972877] __kasan_report+0x1d4/0x240
[ 46.976723] kasan_report+0xc/0x18
[ 46.980138] __asan_report_load4_noabort+0x18/0x20
[ 46.985027] brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]
[ 46.990613] dev_hard_start_xmit+0x1bc/0xda0
[ 46.994894] sch_direct_xmit+0x198/0xd08
[ 46.998827] __qdisc_run+0x37c/0x1dc0
[ 47.002500] __dev_queue_xmit+0x1528/0x21f8
[ 47.006692] dev_queue_xmit+0x24/0x30
[ 47.010366] neigh_resolve_output+0x37c/0x678
[ 47.014734] ip_finish_output2+0x598/0x2458
[ 47.018927] __ip_finish_output+0x300/0x730
[ 47.023118] ip_output+0x2e0/0x430
[ 47.026530] ip_local_out+0x90/0x140
[ 47.030117] igmpv3_sendpack+0x14c/0x228
[ 47.034049] igmpv3_send_cr+0x384/0x6b8
[ 47.037895] igmp_ifc_timer_expire+0x4c/0x118
[ 47.042262] call_timer_fn+0x1cc/0xbe8
[ 47.046021] __run_timers+0x4d8/0xb28
[ 47.049693] run_timer_softirq+0x24/0x40
[ 47.053626] __do_softirq+0x2c0/0x117c
[ 47.057387] irq_exit+0x2dc/0x388
[ 47.060715] __handle_domain_irq+0xb4/0x158
[ 47.064908] gic_handle_irq+0x58/0xb0
[ 47.068581] el0_irq_naked+0x50/0x5c
[ 47.072162]
[ 47.073665] Allocated by task 328:
[ 47.077083] save_stack+0x24/0xb0
[ 47.080410] __kasan_kmalloc.isra.0+0xc0/0xe0
[ 47.084776] kasan_slab_alloc+0x14/0x20
[ 47.088622] kmem_cache_alloc+0x15c/0x468
[ 47.092643] __alloc_skb+0xa4/0x498
[ 47.096142] igmpv3_newpack+0x158/0xd78
[ 47.099987] add_grhead+0x210/0x288
[ 47.103485] add_grec+0x6b0/0xb70
[ 47.106811] igmpv3_send_cr+0x2e0/0x6b8
[ 47.110657] igmp_ifc_timer_expire+0x4c/0x118
[ 47.115027] call_timer_fn+0x1cc/0xbe8
[ 47.118785] __run_timers+0x4d8/0xb28
[ 47.122457] run_timer_softirq+0x24/0x40
[ 47.126389] __do_softirq+0x2c0/0x117c
[ 47.130142]
[ 47.131643] Freed by task 180:
[ 47.134712] save_stack+0x24/0xb0
[ 47.138041] __kasan_slab_free+0x108/0x180
[ 47.142146] kasan_slab_free+0x10/0x18
[ 47.145904] slab_free_freelist_hook+0xa4/0x1b0
[ 47.150444] kmem_cache_free+0x8c/0x528
[ 47.154292] kfree_skbmem+0x94/0x108
[ 47.157880] consume_skb+0x10c/0x5a8
[ 47.161466] __dev_kfree_skb_any+0x88/0xa0
[ 47.165598] brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil]
[ 47.171023] brcmf_txfinalize+0xec/0x190 [brcmfmac]
[ 47.176016] brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac]
[ 47.182056] brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac]
[ 47.187568] brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac]
[ 47.192529] brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac]
[ 47.197859] process_one_work+0x7fc/0x1a80
[ 47.201965] worker_thread+0x31c/0xc40
[ 47.205726] kthread+0x2d8/0x370
[ 47.208967] ret_from_fork+0x10/0x18
[ 47.212546]
[ 47.214051] The buggy address belongs to the object at ffffff803f588280
[ 47.214051] which belongs to the cache skbuff_head_cache of size 208
[ 47.227086] The buggy address is located 104 bytes inside of
[ 47.227086] 208-byte region [ffffff803f588280, ffffff803f588350)
[ 47.238814] The buggy address belongs to the page:
[ 47.243618] page:ffffffff00dd6200 refcount:1 mapcount:0 mapping:ffffff804b6bf800 index:0xffffff803f589900 compound_mapcount: 0
[ 47.255007] flags: 0x10200(slab|head)
[ 47.258689] raw: 0000000000010200 ffffffff00dfa980 0000000200000002 ffffff804b6bf800
[ 47.266439] raw: ffffff803f589900 0000000080190018 00000001ffffffff 0000000000000000
[ 47.274180] page dumped because: kasan: bad access detected
[ 47.279752]
[ 47.281251] Memory state around the buggy address:
[ 47.286051] ffffff803f588180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.293277] ffffff803f588200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 47.300502] >ffffff803f588280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.307723] ^
[ 47.314343] ffffff803f588300: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[ 47.321569] ffffff803f588380: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
[ 47.328789] ==================================================================
Signed-off-by: Alexander Coffin <alex.coffin@matician.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220808174925.3922558-1-alex.coffin@matician.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 590bef2defb9..9c8102be1d0b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -200,6 +200,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
struct brcmf_pub *drvr = ifp->drvr;
struct ethhdr *eh;
int head_delta;
+ unsigned int tx_bytes = skb->len;
brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
@@ -254,7 +255,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
ndev->stats.tx_dropped++;
} else {
ndev->stats.tx_packets++;
- ndev->stats.tx_bytes += skb->len;
+ ndev->stats.tx_bytes += tx_bytes;
}
/* Return ok: we always eat the packet */
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 174/210] Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (172 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 173/210] wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 175/210] Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times Greg Kroah-Hartman
` (38 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot, Tetsuo Handa,
Luiz Augusto von Dentz, Sasha Levin
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
[ Upstream commit 2d2cb3066f2c90cd8ca540b36ba7a55e7f2406e0 ]
syzbot is reporting cancel_delayed_work() without INIT_DELAYED_WORK() at
l2cap_chan_del() [1], for CONF_NOT_COMPLETE flag (which meant to prevent
l2cap_chan_del() from calling cancel_delayed_work()) is cleared by timer
which fires before l2cap_chan_del() is called by closing file descriptor
created by socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_L2CAP).
l2cap_bredr_sig_cmd(L2CAP_CONF_REQ) and l2cap_bredr_sig_cmd(L2CAP_CONF_RSP)
are calling l2cap_ertm_init(chan), and they call l2cap_chan_ready() (which
clears CONF_NOT_COMPLETE flag) only when l2cap_ertm_init(chan) succeeded.
l2cap_sock_init() does not call l2cap_ertm_init(chan), and it instead sets
CONF_NOT_COMPLETE flag by calling l2cap_chan_set_defaults(). However, when
connect() is requested, "command 0x0409 tx timeout" happens after 2 seconds
from connect() request, and CONF_NOT_COMPLETE flag is cleared after 4
seconds from connect() request, for l2cap_conn_start() from
l2cap_info_timeout() callback scheduled by
schedule_delayed_work(&conn->info_timer, L2CAP_INFO_TIMEOUT);
in l2cap_connect() is calling l2cap_chan_ready().
Fix this problem by initializing delayed works used by L2CAP_MODE_ERTM
mode as soon as l2cap_chan_create() allocates a channel, like I did in
commit be8597239379f0f5 ("Bluetooth: initialize skb_queue_head at
l2cap_chan_create()").
Link: https://syzkaller.appspot.com/bug?extid=83672956c7aa6af698b3 [1]
Reported-by: syzbot <syzbot+83672956c7aa6af698b3@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/l2cap_core.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index e45a12378bd1..75a76353525c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -63,6 +63,9 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);
static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
struct sk_buff_head *skbs, u8 event);
+static void l2cap_retrans_timeout(struct work_struct *work);
+static void l2cap_monitor_timeout(struct work_struct *work);
+static void l2cap_ack_timeout(struct work_struct *work);
static inline u8 bdaddr_type(u8 link_type, u8 bdaddr_type)
{
@@ -470,6 +473,9 @@ struct l2cap_chan *l2cap_chan_create(void)
write_unlock(&chan_list_lock);
INIT_DELAYED_WORK(&chan->chan_timer, l2cap_chan_timeout);
+ INIT_DELAYED_WORK(&chan->retrans_timer, l2cap_retrans_timeout);
+ INIT_DELAYED_WORK(&chan->monitor_timer, l2cap_monitor_timeout);
+ INIT_DELAYED_WORK(&chan->ack_timer, l2cap_ack_timeout);
chan->state = BT_OPEN;
@@ -3154,10 +3160,6 @@ int l2cap_ertm_init(struct l2cap_chan *chan)
chan->rx_state = L2CAP_RX_STATE_RECV;
chan->tx_state = L2CAP_TX_STATE_XMIT;
- INIT_DELAYED_WORK(&chan->retrans_timer, l2cap_retrans_timeout);
- INIT_DELAYED_WORK(&chan->monitor_timer, l2cap_monitor_timeout);
- INIT_DELAYED_WORK(&chan->ack_timer, l2cap_ack_timeout);
-
skb_queue_head_init(&chan->srej_q);
err = l2cap_seq_list_init(&chan->srej_list, chan->tx_win);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 175/210] Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (173 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 174/210] Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 176/210] can: bcm: check the result of can_send() in bcm_can_tx() Greg Kroah-Hartman
` (37 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luiz Augusto von Dentz,
Hawkins Jiawei, Sasha Levin
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[ Upstream commit 448a496f760664d3e2e79466aa1787e6abc922b5 ]
device_add shall not be called multiple times as stated in its
documentation:
'Do not call this routine or device_register() more than once for
any device structure'
Syzkaller reports a bug as follows [1]:
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:33!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[...]
Call Trace:
<TASK>
__list_add include/linux/list.h:69 [inline]
list_add_tail include/linux/list.h:102 [inline]
kobj_kset_join lib/kobject.c:164 [inline]
kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214
kobject_add_varg lib/kobject.c:358 [inline]
kobject_add+0x150/0x1c0 lib/kobject.c:410
device_add+0x368/0x1e90 drivers/base/core.c:3452
hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53
hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799
hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110
hci_event_func net/bluetooth/hci_event.c:7440 [inline]
hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495
hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
Link: https://syzkaller.appspot.com/bug?id=da3246e2d33afdb92d66bc166a0934c5b146404a
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Hawkins Jiawei <yin31149@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/hci_sysfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index b568f7c21b30..0c9249339790 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -48,6 +48,9 @@ void hci_conn_add_sysfs(struct hci_conn *conn)
BT_DBG("conn %p", conn);
+ if (device_is_registered(&conn->dev))
+ return;
+
dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
if (device_add(&conn->dev) < 0) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 176/210] can: bcm: check the result of can_send() in bcm_can_tx()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (174 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 175/210] Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 177/210] wifi: rt2x00: dont run Rt5592 IQ calibration on MT7620 Greg Kroah-Hartman
` (36 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Marc Kleine-Budde, Oliver Hartkopp,
Ziyang Xuan, Sasha Levin
From: Ziyang Xuan <william.xuanziyang@huawei.com>
[ Upstream commit 3fd7bfd28cfd68ae80a2fe92ea1615722cc2ee6e ]
If can_send() fail, it should not update frames_abs counter
in bcm_can_tx(). Add the result check for can_send() in bcm_can_tx().
Suggested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Suggested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Link: https://lore.kernel.org/all/9851878e74d6d37aee2f1ee76d68361a46f89458.1663206163.git.william.xuanziyang@huawei.com
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/can/bcm.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/net/can/bcm.c b/net/can/bcm.c
index b3f3b02ffd42..89b955ef75d1 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -286,6 +286,7 @@ static void bcm_can_tx(struct bcm_op *op)
struct sk_buff *skb;
struct net_device *dev;
struct canfd_frame *cf = op->frames + op->cfsiz * op->currframe;
+ int err;
/* no target device? => exit */
if (!op->ifindex)
@@ -310,11 +311,11 @@ static void bcm_can_tx(struct bcm_op *op)
/* send with loopback */
skb->dev = dev;
can_skb_set_owner(skb, op->sk);
- can_send(skb, 1);
+ err = can_send(skb, 1);
+ if (!err)
+ op->frames_abs++;
- /* update statistics */
op->currframe++;
- op->frames_abs++;
/* reached last frame? */
if (op->currframe >= op->nframes)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 177/210] wifi: rt2x00: dont run Rt5592 IQ calibration on MT7620
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (175 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 176/210] can: bcm: check the result of can_send() in bcm_can_tx() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 178/210] wifi: rt2x00: set correct TX_SW_CFG1 MAC register for MT7620 Greg Kroah-Hartman
` (35 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Serge Vasilugin, Daniel Golle,
Kalle Valo, Sasha Levin
From: Daniel Golle <daniel@makrotopia.org>
[ Upstream commit d3aad83d05aec0cfd7670cf0028f2ad4b81de92e ]
The function rt2800_iq_calibrate is intended for Rt5592 only.
Don't call it for MT7620 which has it's own calibration functions.
Reported-by: Serge Vasilugin <vasilugin@yandex.ru>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/31a1c34ddbd296b82f38c18c9ae7339059215fdc.1663445157.git.daniel@makrotopia.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index d2c289446c00..1309c136f7f3 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -3835,7 +3835,8 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
reg += 2 * rt2x00dev->lna_gain;
rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
- rt2800_iq_calibrate(rt2x00dev, rf->channel);
+ if (rt2x00_rt(rt2x00dev, RT5592))
+ rt2800_iq_calibrate(rt2x00dev, rf->channel);
}
bbp = rt2800_bbp_read(rt2x00dev, 4);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 178/210] wifi: rt2x00: set correct TX_SW_CFG1 MAC register for MT7620
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (176 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 177/210] wifi: rt2x00: dont run Rt5592 IQ calibration on MT7620 Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 179/210] wifi: rt2x00: set SoC wmac clock register Greg Kroah-Hartman
` (34 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Serge Vasilugin, Daniel Golle,
Stanislaw Gruszka, Kalle Valo, Sasha Levin
From: Daniel Golle <daniel@makrotopia.org>
[ Upstream commit eeb50acf15762b61921f9df18663f839f387c054 ]
Set correct TX_SW_CFG1 MAC register as it is done also in v3 of the
vendor driver[1].
[1]: https://gitlab.com/dm38/padavan-ng/-/blob/master/trunk/proprietary/rt_wifi/rtpci/3.0.X.X/mt76x2/chips/rt6352.c#L531
Reported-by: Serge Vasilugin <vasilugin@yandex.ru>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/4be38975ce600a34249e12d09a3cb758c6e71071.1663445157.git.daniel@makrotopia.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 1309c136f7f3..0c90bf0540b9 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -5315,7 +5315,7 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000404);
} else if (rt2x00_rt(rt2x00dev, RT6352)) {
rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000401);
- rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x000C0000);
+ rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x000C0001);
rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002);
rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 179/210] wifi: rt2x00: set SoC wmac clock register
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (177 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 178/210] wifi: rt2x00: set correct TX_SW_CFG1 MAC register for MT7620 Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 180/210] wifi: rt2x00: correctly set BBP register 86 for MT7620 Greg Kroah-Hartman
` (33 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Serge Vasilugin, Daniel Golle,
Stanislaw Gruszka, Kalle Valo, Sasha Levin
From: Daniel Golle <daniel@makrotopia.org>
[ Upstream commit cbde6ed406a51092d9e8a2df058f5f8490f27443 ]
Instead of using the default value 33 (pci), set US_CYC_CNT init based
on Programming guide:
If available, set chipset bus clock with fallback to cpu clock/3.
Reported-by: Serge Vasilugin <vasilugin@yandex.ru>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/3e275d259f476f597dab91a9c395015ef3fe3284.1663445157.git.daniel@makrotopia.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/ralink/rt2x00/rt2800lib.c | 21 +++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 0c90bf0540b9..57fa472b5c4e 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -5567,6 +5567,27 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
reg = rt2800_register_read(rt2x00dev, US_CYC_CNT);
rt2x00_set_field32(®, US_CYC_CNT_CLOCK_CYCLE, 125);
rt2800_register_write(rt2x00dev, US_CYC_CNT, reg);
+ } else if (rt2x00_is_soc(rt2x00dev)) {
+ struct clk *clk = clk_get_sys("bus", NULL);
+ int rate;
+
+ if (IS_ERR(clk)) {
+ clk = clk_get_sys("cpu", NULL);
+
+ if (IS_ERR(clk)) {
+ rate = 125;
+ } else {
+ rate = clk_get_rate(clk) / 3000000;
+ clk_put(clk);
+ }
+ } else {
+ rate = clk_get_rate(clk) / 1000000;
+ clk_put(clk);
+ }
+
+ reg = rt2800_register_read(rt2x00dev, US_CYC_CNT);
+ rt2x00_set_field32(®, US_CYC_CNT_CLOCK_CYCLE, rate);
+ rt2800_register_write(rt2x00dev, US_CYC_CNT, reg);
}
reg = rt2800_register_read(rt2x00dev, HT_FBK_CFG0);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 180/210] wifi: rt2x00: correctly set BBP register 86 for MT7620
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (178 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 179/210] wifi: rt2x00: set SoC wmac clock register Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 181/210] net: If sock is dead dont access socks sk_wq in sk_stream_wait_memory Greg Kroah-Hartman
` (32 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Serge Vasilugin, Daniel Golle,
Stanislaw Gruszka, Kalle Valo, Sasha Levin
From: Daniel Golle <daniel@makrotopia.org>
[ Upstream commit c9aada64fe6493461127f1522d7e2f01792d2424 ]
Instead of 0 set the correct value for BBP register 86 for MT7620.
Reported-by: Serge Vasilugin <vasilugin@yandex.ru>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/257267247ee4fa7ebc6a5d0c4948b3f8119c0d77.1663445157.git.daniel@makrotopia.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 57fa472b5c4e..155c08dc2e0e 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -3655,7 +3655,10 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain);
rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain);
- rt2800_bbp_write(rt2x00dev, 86, 0);
+ if (rt2x00_rt(rt2x00dev, RT6352))
+ rt2800_bbp_write(rt2x00dev, 86, 0x38);
+ else
+ rt2800_bbp_write(rt2x00dev, 86, 0);
}
if (rf->channel <= 14) {
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 181/210] net: If sock is dead dont access socks sk_wq in sk_stream_wait_memory
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (179 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 180/210] wifi: rt2x00: correctly set BBP register 86 for MT7620 Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 182/210] Bluetooth: L2CAP: Fix user-after-free Greg Kroah-Hartman
` (31 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jakub Sitnicki, Liu Jian,
Daniel Borkmann, John Fastabend, Eric Dumazet, Sasha Levin
From: Liu Jian <liujian56@huawei.com>
[ Upstream commit 3f8ef65af927db247418d4e1db49164d7a158fc5 ]
Fixes the below NULL pointer dereference:
[...]
[ 14.471200] Call Trace:
[ 14.471562] <TASK>
[ 14.471882] lock_acquire+0x245/0x2e0
[ 14.472416] ? remove_wait_queue+0x12/0x50
[ 14.473014] ? _raw_spin_lock_irqsave+0x17/0x50
[ 14.473681] _raw_spin_lock_irqsave+0x3d/0x50
[ 14.474318] ? remove_wait_queue+0x12/0x50
[ 14.474907] remove_wait_queue+0x12/0x50
[ 14.475480] sk_stream_wait_memory+0x20d/0x340
[ 14.476127] ? do_wait_intr_irq+0x80/0x80
[ 14.476704] do_tcp_sendpages+0x287/0x600
[ 14.477283] tcp_bpf_push+0xab/0x260
[ 14.477817] tcp_bpf_sendmsg_redir+0x297/0x500
[ 14.478461] ? __local_bh_enable_ip+0x77/0xe0
[ 14.479096] tcp_bpf_send_verdict+0x105/0x470
[ 14.479729] tcp_bpf_sendmsg+0x318/0x4f0
[ 14.480311] sock_sendmsg+0x2d/0x40
[ 14.480822] ____sys_sendmsg+0x1b4/0x1c0
[ 14.481390] ? copy_msghdr_from_user+0x62/0x80
[ 14.482048] ___sys_sendmsg+0x78/0xb0
[ 14.482580] ? vmf_insert_pfn_prot+0x91/0x150
[ 14.483215] ? __do_fault+0x2a/0x1a0
[ 14.483738] ? do_fault+0x15e/0x5d0
[ 14.484246] ? __handle_mm_fault+0x56b/0x1040
[ 14.484874] ? lock_is_held_type+0xdf/0x130
[ 14.485474] ? find_held_lock+0x2d/0x90
[ 14.486046] ? __sys_sendmsg+0x41/0x70
[ 14.486587] __sys_sendmsg+0x41/0x70
[ 14.487105] ? intel_pmu_drain_pebs_core+0x350/0x350
[ 14.487822] do_syscall_64+0x34/0x80
[ 14.488345] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[...]
The test scenario has the following flow:
thread1 thread2
----------- ---------------
tcp_bpf_sendmsg
tcp_bpf_send_verdict
tcp_bpf_sendmsg_redir sock_close
tcp_bpf_push_locked __sock_release
tcp_bpf_push //inet_release
do_tcp_sendpages sock->ops->release
sk_stream_wait_memory // tcp_close
sk_wait_event sk->sk_prot->close
release_sock(__sk);
***
lock_sock(sk);
__tcp_close
sock_orphan(sk)
sk->sk_wq = NULL
release_sock
****
lock_sock(__sk);
remove_wait_queue(sk_sleep(sk), &wait);
sk_sleep(sk)
//NULL pointer dereference
&rcu_dereference_raw(sk->sk_wq)->wait
While waiting for memory in thread1, the socket is released with its wait
queue because thread2 has closed it. This caused by tcp_bpf_send_verdict
didn't increase the f_count of psock->sk_redir->sk_socket->file in thread1.
We should check if SOCK_DEAD flag is set on wakeup in sk_stream_wait_memory
before accessing the wait queue.
Suggested-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/bpf/20220823133755.314697-2-liujian56@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/core/stream.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/core/stream.c b/net/core/stream.c
index cbe52b169070..e5c6c9e5e0aa 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -159,7 +159,8 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
*timeo_p = current_timeo;
}
out:
- remove_wait_queue(sk_sleep(sk), &wait);
+ if (!sock_flag(sk, SOCK_DEAD))
+ remove_wait_queue(sk_sleep(sk), &wait);
return err;
do_error:
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 182/210] Bluetooth: L2CAP: Fix user-after-free
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (180 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 181/210] net: If sock is dead dont access socks sk_wq in sk_stream_wait_memory Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 183/210] r8152: Rate limit overflow messages Greg Kroah-Hartman
` (30 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luiz Augusto von Dentz, Sungwoo Kim,
Sasha Levin
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[ Upstream commit 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f ]
This uses l2cap_chan_hold_unless_zero() after calling
__l2cap_get_chan_blah() to prevent the following trace:
Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref
*kref)
Bluetooth: chan 0000000023c4974d
Bluetooth: parent 00000000ae861c08
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first
kernel/locking/mutex.c:191 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common
kernel/locking/mutex.c:671 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400
kernel/locking/mutex.c:729
Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389
Link: https://lore.kernel.org/lkml/20220622082716.478486-1-lee.jones@linaro.org
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/l2cap_core.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 75a76353525c..652c0723051b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4049,6 +4049,12 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
}
}
+ chan = l2cap_chan_hold_unless_zero(chan);
+ if (!chan) {
+ err = -EBADSLT;
+ goto unlock;
+ }
+
err = 0;
l2cap_chan_lock(chan);
@@ -4078,6 +4084,7 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
}
l2cap_chan_unlock(chan);
+ l2cap_chan_put(chan);
unlock:
mutex_unlock(&conn->chan_lock);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 183/210] r8152: Rate limit overflow messages
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (181 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 182/210] Bluetooth: L2CAP: Fix user-after-free Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 184/210] drm: Use size_t type for len variable in drm_copy_field() Greg Kroah-Hartman
` (29 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andrew Gaul, Jakub Kicinski, Sasha Levin
From: Andrew Gaul <gaul@gaul.org>
[ Upstream commit 93e2be344a7db169b7119de21ac1bf253b8c6907 ]
My system shows almost 10 million of these messages over a 24-hour
period which pollutes my logs.
Signed-off-by: Andrew Gaul <gaul@google.com>
Link: https://lore.kernel.org/r/20221002034128.2026653-1-gaul@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/usb/r8152.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index a5a4fef09b93..1ed358d0da84 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1382,7 +1382,9 @@ static void intr_callback(struct urb *urb)
"Stop submitting intr, status %d\n", status);
return;
case -EOVERFLOW:
- netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
+ if (net_ratelimit())
+ netif_info(tp, intr, tp->netdev,
+ "intr status -EOVERFLOW\n");
goto resubmit;
/* -EPIPE: should clear the halt */
default:
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 184/210] drm: Use size_t type for len variable in drm_copy_field()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (182 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 183/210] r8152: Rate limit overflow messages Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 185/210] drm: Prevent drm_copy_field() to attempt copying a NULL pointer Greg Kroah-Hartman
` (28 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Javier Martinez Canillas,
Peter Robinson, Thomas Zimmermann, Sasha Levin
From: Javier Martinez Canillas <javierm@redhat.com>
[ Upstream commit 94dc3471d1b2b58b3728558d0e3f264e9ce6ff59 ]
The strlen() function returns a size_t which is an unsigned int on 32-bit
arches and an unsigned long on 64-bit arches. But in the drm_copy_field()
function, the strlen() return value is assigned to an 'int len' variable.
Later, the len variable is passed as copy_from_user() third argument that
is an unsigned long parameter as well.
In theory, this can lead to an integer overflow via type conversion. Since
the assignment happens to a signed int lvalue instead of a size_t lvalue.
In practice though, that's unlikely since the values copied are set by DRM
drivers and not controlled by userspace. But using a size_t for len is the
correct thing to do anyways.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-2-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/drm_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index ce26e8fea9c2..335fad8b209a 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -437,7 +437,7 @@ EXPORT_SYMBOL(drm_invalid_op);
*/
static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
{
- int len;
+ size_t len;
/* don't overflow userbuf */
len = strlen(value);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 185/210] drm: Prevent drm_copy_field() to attempt copying a NULL pointer
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (183 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 184/210] drm: Use size_t type for len variable in drm_copy_field() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 186/210] drm/vc4: vec: Fix timings for VEC modes Greg Kroah-Hartman
` (27 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Robinson,
Javier Martinez Canillas, Thomas Zimmermann, Sasha Levin
From: Javier Martinez Canillas <javierm@redhat.com>
[ Upstream commit f6ee30407e883042482ad4ad30da5eaba47872ee ]
There are some struct drm_driver fields that are required by drivers since
drm_copy_field() attempts to copy them to user-space via DRM_IOCTL_VERSION.
But it can be possible that a driver has a bug and did not set some of the
fields, which leads to drm_copy_field() attempting to copy a NULL pointer:
[ +10.395966] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[ +0.010955] Mem abort info:
[ +0.002835] ESR = 0x0000000096000004
[ +0.003872] EC = 0x25: DABT (current EL), IL = 32 bits
[ +0.005395] SET = 0, FnV = 0
[ +0.003113] EA = 0, S1PTW = 0
[ +0.003182] FSC = 0x04: level 0 translation fault
[ +0.004964] Data abort info:
[ +0.002919] ISV = 0, ISS = 0x00000004
[ +0.003886] CM = 0, WnR = 0
[ +0.003040] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000115dad000
[ +0.006536] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[ +0.006925] Internal error: Oops: 96000004 [#1] SMP
...
[ +0.011113] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ +0.007061] pc : __pi_strlen+0x14/0x150
[ +0.003895] lr : drm_copy_field+0x30/0x1a4
[ +0.004156] sp : ffff8000094b3a50
[ +0.003355] x29: ffff8000094b3a50 x28: ffff8000094b3b70 x27: 0000000000000040
[ +0.007242] x26: ffff443743c2ba00 x25: 0000000000000000 x24: 0000000000000040
[ +0.007243] x23: ffff443743c2ba00 x22: ffff8000094b3b70 x21: 0000000000000000
[ +0.007241] x20: 0000000000000000 x19: ffff8000094b3b90 x18: 0000000000000000
[ +0.007241] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaab14b9af40
[ +0.007241] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[ +0.007239] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa524ad67d4d8
[ +0.007242] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : 6c6e6263606e7141
[ +0.007239] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[ +0.007241] x2 : 0000000000000000 x1 : ffff8000094b3b90 x0 : 0000000000000000
[ +0.007240] Call trace:
[ +0.002475] __pi_strlen+0x14/0x150
[ +0.003537] drm_version+0x84/0xac
[ +0.003448] drm_ioctl_kernel+0xa8/0x16c
[ +0.003975] drm_ioctl+0x270/0x580
[ +0.003448] __arm64_sys_ioctl+0xb8/0xfc
[ +0.003978] invoke_syscall+0x78/0x100
[ +0.003799] el0_svc_common.constprop.0+0x4c/0xf4
[ +0.004767] do_el0_svc+0x38/0x4c
[ +0.003357] el0_svc+0x34/0x100
[ +0.003185] el0t_64_sync_handler+0x11c/0x150
[ +0.004418] el0t_64_sync+0x190/0x194
[ +0.003716] Code: 92402c04 b200c3e8 f13fc09f 5400088c (a9400c02)
[ +0.006180] ---[ end trace 0000000000000000 ]---
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705100215.572498-3-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/drm_ioctl.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 335fad8b209a..73dcf03e7e8c 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -439,6 +439,12 @@ static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
{
size_t len;
+ /* don't attempt to copy a NULL pointer */
+ if (WARN_ONCE(!value, "BUG: the value to copy was not set!")) {
+ *buf_len = 0;
+ return 0;
+ }
+
/* don't overflow userbuf */
len = strlen(value);
if (len > *buf_len)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 186/210] drm/vc4: vec: Fix timings for VEC modes
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (184 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 185/210] drm: Prevent drm_copy_field() to attempt copying a NULL pointer Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 187/210] platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading Greg Kroah-Hartman
` (26 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mateusz Kwiatkowski,
Noralf Trønnes, Maxime Ripard, Sasha Levin
From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
[ Upstream commit 30d7565be96b3946c18a1ce3fd538f7946839092 ]
This commit fixes vertical timings of the VEC (composite output) modes
to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R
standards.
Previous timings were actually defined as 502 and 601 lines, resulting
in non-standard 62.69 Hz and 52 Hz signals being generated,
respectively.
Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728-rpi-analog-tv-properties-v2-28-459522d653a7@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/vc4/vc4_vec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 3a9a302247a2..bcf7880f84a8 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -291,7 +291,7 @@ static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
static const struct drm_display_mode ntsc_mode = {
DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
- 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
+ 480, 480 + 7, 480 + 7 + 6, 525, 0,
DRM_MODE_FLAG_INTERLACE)
};
@@ -313,7 +313,7 @@ static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
static const struct drm_display_mode pal_mode = {
DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
- 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
+ 576, 576 + 4, 576 + 4 + 6, 625, 0,
DRM_MODE_FLAG_INTERLACE)
};
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 187/210] platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (185 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 186/210] drm/vc4: vec: Fix timings for VEC modes Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 188/210] drm/amdgpu: fix initial connector audio value Greg Kroah-Hartman
` (25 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hans de Goede, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit 2a2565272a3628e45d61625e36ef17af7af4e3de ]
On a MSI S270 with Fedora 37 x86_64 / systemd-251.4 the module does not
properly autoload.
This is likely caused by issues with how systemd-udevd handles the single
quote char (') which is part of the sys_vendor / chassis_vendor strings
on this laptop. As a workaround remove the single quote char + everything
behind it from the sys_vendor + chassis_vendor matches. This fixes
the module not autoloading.
Link: https://github.com/systemd/systemd/issues/24715
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220917210407.647432-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/msi-laptop.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 1ba5f4689df4..42b31c549db0 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -609,11 +609,10 @@ static const struct dmi_system_id msi_dmi_table[] __initconst = {
{
.ident = "MSI S270",
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
+ DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
- DMI_MATCH(DMI_CHASSIS_VENDOR,
- "MICRO-STAR INT'L CO.,LTD")
+ DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT")
},
.driver_data = &quirk_old_ec_model,
.callback = dmi_check_cb
@@ -646,8 +645,7 @@ static const struct dmi_system_id msi_dmi_table[] __initconst = {
DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
- DMI_MATCH(DMI_CHASSIS_VENDOR,
- "MICRO-STAR INT'L CO.,LTD")
+ DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT")
},
.driver_data = &quirk_old_ec_model,
.callback = dmi_check_cb
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 188/210] drm/amdgpu: fix initial connector audio value
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (186 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 187/210] platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 189/210] ARM: dts: imx7d-sdb: config the max pressure for tsc2046 Greg Kroah-Hartman
` (24 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, hongao, Alex Deucher, Sasha Levin
From: hongao <hongao@uniontech.com>
[ Upstream commit 4bb71fce58f30df3f251118291d6b0187ce531e6 ]
This got lost somewhere along the way, This fixes
audio not working until set_property was called.
Signed-off-by: hongao <hongao@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 0894bb98dc51..be3a384cc1cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -1678,10 +1678,12 @@ amdgpu_connector_add(struct amdgpu_device *adev,
adev->mode_info.dither_property,
AMDGPU_FMT_DITHER_DISABLE);
- if (amdgpu_audio != 0)
+ if (amdgpu_audio != 0) {
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.audio_property,
AMDGPU_AUDIO_AUTO);
+ amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
+ }
subpixel_order = SubPixelHorizontalRGB;
connector->interlace_allowed = true;
@@ -1786,6 +1788,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.audio_property,
AMDGPU_AUDIO_AUTO);
+ amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
}
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.dither_property,
@@ -1834,6 +1837,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.audio_property,
AMDGPU_AUDIO_AUTO);
+ amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
}
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.dither_property,
@@ -1879,6 +1883,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.audio_property,
AMDGPU_AUDIO_AUTO);
+ amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
}
drm_object_attach_property(&amdgpu_connector->base.base,
adev->mode_info.dither_property,
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 189/210] ARM: dts: imx7d-sdb: config the max pressure for tsc2046
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (187 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 188/210] drm/amdgpu: fix initial connector audio value Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 190/210] ARM: dts: imx6q: add missing properties for sram Greg Kroah-Hartman
` (23 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Haibo Chen, Shawn Guo, Sasha Levin
From: Haibo Chen <haibo.chen@nxp.com>
[ Upstream commit e7c4ebe2f9cd68588eb24ba4ed122e696e2d5272 ]
Use the general touchscreen method to config the max pressure for
touch tsc2046(data sheet suggest 8 bit pressure), otherwise, for
ABS_PRESSURE, when config the same max and min value, weston will
meet the following issue,
[17:19:39.183] event1 - ADS7846 Touchscreen: is tagged by udev as: Touchscreen
[17:19:39.183] event1 - ADS7846 Touchscreen: kernel bug: device has min == max on ABS_PRESSURE
[17:19:39.183] event1 - ADS7846 Touchscreen: was rejected
[17:19:39.183] event1 - not using input device '/dev/input/event1'
This will then cause the APP weston-touch-calibrator can't list touch devices.
root@imx6ul7d:~# weston-touch-calibrator
could not load cursor 'dnd-move'
could not load cursor 'dnd-copy'
could not load cursor 'dnd-none'
No devices listed.
And accroding to binding Doc, "ti,x-max", "ti,y-max", "ti,pressure-max"
belong to the deprecated properties, so remove them. Also for "ti,x-min",
"ti,y-min", "ti,x-plate-ohms", the value set in dts equal to the default
value in driver, so are redundant, also remove here.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/imx7d-sdb.dts | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
index 255e64ba32e2..7cf6557f4afc 100644
--- a/arch/arm/boot/dts/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/imx7d-sdb.dts
@@ -179,12 +179,7 @@
interrupt-parent = <&gpio2>;
interrupts = <29 0>;
pendown-gpio = <&gpio2 29 GPIO_ACTIVE_HIGH>;
- ti,x-min = /bits/ 16 <0>;
- ti,x-max = /bits/ 16 <0>;
- ti,y-min = /bits/ 16 <0>;
- ti,y-max = /bits/ 16 <0>;
- ti,pressure-max = /bits/ 16 <0>;
- ti,x-plate-ohms = /bits/ 16 <400>;
+ touchscreen-max-pressure = <255>;
wakeup-source;
};
};
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 190/210] ARM: dts: imx6q: add missing properties for sram
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (188 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 189/210] ARM: dts: imx7d-sdb: config the max pressure for tsc2046 Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 191/210] ARM: dts: imx6dl: " Greg Kroah-Hartman
` (22 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Stein, Shawn Guo, Sasha Levin
From: Alexander Stein <alexander.stein@ew.tq-group.com>
[ Upstream commit b11d083c5dcec7c42fe982c854706d404ddd3a5f ]
All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property
sram@900000: '#size-cells' is a required property
sram@900000: 'ranges' is a required property
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/imx6q.dtsi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index 4747ede61acd..7b335e8050d3 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -82,6 +82,9 @@
ocram: sram@00900000 {
compatible = "mmio-sram";
reg = <0x00900000 0x40000>;
+ ranges = <0 0x00900000 0x40000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
clocks = <&clks IMX6QDL_CLK_OCRAM>;
};
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 191/210] ARM: dts: imx6dl: add missing properties for sram
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (189 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 190/210] ARM: dts: imx6q: add missing properties for sram Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 192/210] ARM: dts: imx6qp: " Greg Kroah-Hartman
` (21 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Stein, Shawn Guo, Sasha Levin
From: Alexander Stein <alexander.stein@ew.tq-group.com>
[ Upstream commit f5848b95633d598bacf0500e0108dc5961af88c0 ]
All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property
sram@900000: '#size-cells' is a required property
sram@900000: 'ranges' is a required property
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/imx6dl.dtsi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index 8475e6cc59ac..71e7c87c7497 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -63,6 +63,9 @@
ocram: sram@00900000 {
compatible = "mmio-sram";
reg = <0x00900000 0x20000>;
+ ranges = <0 0x00900000 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
clocks = <&clks IMX6QDL_CLK_OCRAM>;
};
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 192/210] ARM: dts: imx6qp: add missing properties for sram
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (190 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 191/210] ARM: dts: imx6dl: " Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 193/210] ARM: dts: imx6sl: " Greg Kroah-Hartman
` (20 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Stein, Shawn Guo, Sasha Levin
From: Alexander Stein <alexander.stein@ew.tq-group.com>
[ Upstream commit 088fe5237435ee2f7ed4450519b2ef58b94c832f ]
All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@940000: '#address-cells' is a required property
sram@940000: '#size-cells' is a required property
sram@940000: 'ranges' is a required property
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/imx6qp.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/imx6qp.dtsi b/arch/arm/boot/dts/imx6qp.dtsi
index 299d863690c5..6cf0f9e18b70 100644
--- a/arch/arm/boot/dts/imx6qp.dtsi
+++ b/arch/arm/boot/dts/imx6qp.dtsi
@@ -47,12 +47,18 @@
ocram2: sram@00940000 {
compatible = "mmio-sram";
reg = <0x00940000 0x20000>;
+ ranges = <0 0x00940000 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
clocks = <&clks IMX6QDL_CLK_OCRAM>;
};
ocram3: sram@00960000 {
compatible = "mmio-sram";
reg = <0x00960000 0x20000>;
+ ranges = <0 0x00960000 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
clocks = <&clks IMX6QDL_CLK_OCRAM>;
};
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 193/210] ARM: dts: imx6sl: add missing properties for sram
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (191 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 192/210] ARM: dts: imx6qp: " Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 194/210] media: cx88: Fix a null-ptr-deref bug in buffer_prepare() Greg Kroah-Hartman
` (19 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Stein, Shawn Guo, Sasha Levin
From: Alexander Stein <alexander.stein@ew.tq-group.com>
[ Upstream commit 60c9213a1d9941a8b33db570796c3f9be8984974 ]
All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property
sram@900000: '#size-cells' is a required property
sram@900000: 'ranges' is a required property
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/imx6sl.dtsi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index bd9308b222ba..c8613ccd0944 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -112,6 +112,9 @@
ocram: sram@00900000 {
compatible = "mmio-sram";
reg = <0x00900000 0x20000>;
+ ranges = <0 0x00900000 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
clocks = <&clks IMX6SL_CLK_OCRAM>;
};
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 194/210] media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (192 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 193/210] ARM: dts: imx6sl: " Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 195/210] scsi: 3w-9xxx: Avoid disabling device if failing to enable it Greg Kroah-Hartman
` (18 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheyu Ma, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit 2b064d91440b33fba5b452f2d1b31f13ae911d71 ]
When the driver calls cx88_risc_buffer() to prepare the buffer, the
function call may fail, resulting in a empty buffer and null-ptr-deref
later in buffer_queue().
The following log can reveal it:
[ 41.822762] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
[ 41.824488] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[ 41.828027] RIP: 0010:buffer_queue+0xc2/0x500
[ 41.836311] Call Trace:
[ 41.836945] __enqueue_in_driver+0x141/0x360
[ 41.837262] vb2_start_streaming+0x62/0x4a0
[ 41.838216] vb2_core_streamon+0x1da/0x2c0
[ 41.838516] __vb2_init_fileio+0x981/0xbc0
[ 41.839141] __vb2_perform_fileio+0xbf9/0x1120
[ 41.840072] vb2_fop_read+0x20e/0x400
[ 41.840346] v4l2_read+0x215/0x290
[ 41.840603] vfs_read+0x162/0x4c0
Fix this by checking the return value of cx88_risc_buffer()
[hverkuil: fix coding style issues]
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/cx88/cx88-vbi.c | 9 +++---
drivers/media/pci/cx88/cx88-video.c | 43 +++++++++++++++--------------
2 files changed, 26 insertions(+), 26 deletions(-)
diff --git a/drivers/media/pci/cx88/cx88-vbi.c b/drivers/media/pci/cx88/cx88-vbi.c
index c637679b01b2..2649f87c070f 100644
--- a/drivers/media/pci/cx88/cx88-vbi.c
+++ b/drivers/media/pci/cx88/cx88-vbi.c
@@ -144,11 +144,10 @@ static int buffer_prepare(struct vb2_buffer *vb)
return -EINVAL;
vb2_set_plane_payload(vb, 0, size);
- cx88_risc_buffer(dev->pci, &buf->risc, sgt->sgl,
- 0, VBI_LINE_LENGTH * lines,
- VBI_LINE_LENGTH, 0,
- lines);
- return 0;
+ return cx88_risc_buffer(dev->pci, &buf->risc, sgt->sgl,
+ 0, VBI_LINE_LENGTH * lines,
+ VBI_LINE_LENGTH, 0,
+ lines);
}
static void buffer_finish(struct vb2_buffer *vb)
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 1748812bd7e5..79c293c86f14 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -452,6 +452,7 @@ static int queue_setup(struct vb2_queue *q,
static int buffer_prepare(struct vb2_buffer *vb)
{
+ int ret;
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
struct cx88_core *core = dev->core;
@@ -466,35 +467,35 @@ static int buffer_prepare(struct vb2_buffer *vb)
switch (core->field) {
case V4L2_FIELD_TOP:
- cx88_risc_buffer(dev->pci, &buf->risc,
- sgt->sgl, 0, UNSET,
- buf->bpl, 0, core->height);
+ ret = cx88_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl, 0, UNSET,
+ buf->bpl, 0, core->height);
break;
case V4L2_FIELD_BOTTOM:
- cx88_risc_buffer(dev->pci, &buf->risc,
- sgt->sgl, UNSET, 0,
- buf->bpl, 0, core->height);
+ ret = cx88_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl, UNSET, 0,
+ buf->bpl, 0, core->height);
break;
case V4L2_FIELD_SEQ_TB:
- cx88_risc_buffer(dev->pci, &buf->risc,
- sgt->sgl,
- 0, buf->bpl * (core->height >> 1),
- buf->bpl, 0,
- core->height >> 1);
+ ret = cx88_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl,
+ 0, buf->bpl * (core->height >> 1),
+ buf->bpl, 0,
+ core->height >> 1);
break;
case V4L2_FIELD_SEQ_BT:
- cx88_risc_buffer(dev->pci, &buf->risc,
- sgt->sgl,
- buf->bpl * (core->height >> 1), 0,
- buf->bpl, 0,
- core->height >> 1);
+ ret = cx88_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl,
+ buf->bpl * (core->height >> 1), 0,
+ buf->bpl, 0,
+ core->height >> 1);
break;
case V4L2_FIELD_INTERLACED:
default:
- cx88_risc_buffer(dev->pci, &buf->risc,
- sgt->sgl, 0, buf->bpl,
- buf->bpl, buf->bpl,
- core->height >> 1);
+ ret = cx88_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl, 0, buf->bpl,
+ buf->bpl, buf->bpl,
+ core->height >> 1);
break;
}
dprintk(2,
@@ -502,7 +503,7 @@ static int buffer_prepare(struct vb2_buffer *vb)
buf, buf->vb.vb2_buf.index,
core->width, core->height, dev->fmt->depth, dev->fmt->name,
(unsigned long)buf->risc.dma);
- return 0;
+ return ret;
}
static void buffer_finish(struct vb2_buffer *vb)
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 195/210] scsi: 3w-9xxx: Avoid disabling device if failing to enable it
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (193 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 194/210] media: cx88: Fix a null-ptr-deref bug in buffer_prepare() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 196/210] nbd: Fix hung when signal interrupts nbd_start_device_ioctl() Greg Kroah-Hartman
` (17 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheyu Ma, Letu Ren,
Martin K. Petersen, Sasha Levin
From: Letu Ren <fantasquex@gmail.com>
[ Upstream commit 7eff437b5ee1309b34667844361c6bbb5c97df05 ]
The original code will "goto out_disable_device" and call
pci_disable_device() if pci_enable_device() fails. The kernel will generate
a warning message like "3w-9xxx 0000:00:05.0: disabling already-disabled
device".
We shouldn't disable a device that failed to be enabled. A simple return is
fine.
Link: https://lore.kernel.org/r/20220829110115.38789-1-fantasquex@gmail.com
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Letu Ren <fantasquex@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/3w-9xxx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index dd342207095a..0baeed1793aa 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2013,7 +2013,7 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
retval = pci_enable_device(pdev);
if (retval) {
TW_PRINTK(host, TW_DRIVER, 0x34, "Failed to enable pci device");
- goto out_disable_device;
+ return -ENODEV;
}
pci_set_master(pdev);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 196/210] nbd: Fix hung when signal interrupts nbd_start_device_ioctl()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (194 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 195/210] scsi: 3w-9xxx: Avoid disabling device if failing to enable it Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 197/210] HID: roccat: Fix use-after-free in roccat_read() Greg Kroah-Hartman
` (16 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+38e6c55d4969a14c1534,
Shigeru Yoshida, Josef Bacik, Jens Axboe, Sasha Levin
From: Shigeru Yoshida <syoshida@redhat.com>
[ Upstream commit 1de7c3cf48fc41cd95adb12bd1ea9033a917798a ]
syzbot reported hung task [1]. The following program is a simplified
version of the reproducer:
int main(void)
{
int sv[2], fd;
if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) < 0)
return 1;
if ((fd = open("/dev/nbd0", 0)) < 0)
return 1;
if (ioctl(fd, NBD_SET_SIZE_BLOCKS, 0x81) < 0)
return 1;
if (ioctl(fd, NBD_SET_SOCK, sv[0]) < 0)
return 1;
if (ioctl(fd, NBD_DO_IT) < 0)
return 1;
return 0;
}
When signal interrupt nbd_start_device_ioctl() waiting the condition
atomic_read(&config->recv_threads) == 0, the task can hung because it
waits the completion of the inflight IOs.
This patch fixes the issue by clearing queue, not just shutdown, when
signal interrupt nbd_start_device_ioctl().
Link: https://syzkaller.appspot.com/bug?id=7d89a3ffacd2b83fdd39549bc4d8e0a89ef21239 [1]
Reported-by: syzbot+38e6c55d4969a14c1534@syzkaller.appspotmail.com
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/20220907163502.577561-1-syoshida@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/block/nbd.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 338d02a67afb..f01b8860ba14 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1258,10 +1258,12 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b
mutex_unlock(&nbd->config_lock);
ret = wait_event_interruptible(config->recv_wq,
atomic_read(&config->recv_threads) == 0);
- if (ret)
+ if (ret) {
sock_shutdown(nbd);
- flush_workqueue(nbd->recv_workq);
+ nbd_clear_que(nbd);
+ }
+ flush_workqueue(nbd->recv_workq);
mutex_lock(&nbd->config_lock);
bd_set_size(bdev, 0);
/* user requested, ignore socket errors */
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 197/210] HID: roccat: Fix use-after-free in roccat_read()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (195 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 196/210] nbd: Fix hung when signal interrupts nbd_start_device_ioctl() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 198/210] md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d Greg Kroah-Hartman
` (15 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hyunwoo Kim, Jiri Kosina, Sasha Levin
From: Hyunwoo Kim <imv4bel@gmail.com>
[ Upstream commit cacdb14b1c8d3804a3a7d31773bc7569837b71a4 ]
roccat_report_event() is responsible for registering
roccat-related reports in struct roccat_device.
int roccat_report_event(int minor, u8 const *data)
{
struct roccat_device *device;
struct roccat_reader *reader;
struct roccat_report *report;
uint8_t *new_value;
device = devices[minor];
new_value = kmemdup(data, device->report_size, GFP_ATOMIC);
if (!new_value)
return -ENOMEM;
report = &device->cbuf[device->cbuf_end];
/* passing NULL is safe */
kfree(report->value);
...
The registered report is stored in the struct roccat_device member
"struct roccat_report cbuf[ROCCAT_CBUF_SIZE];".
If more reports are received than the "ROCCAT_CBUF_SIZE" value,
kfree() the saved report from cbuf[0] and allocates a new reprot.
Since there is no lock when this kfree() is performed,
kfree() can be performed even while reading the saved report.
static ssize_t roccat_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
struct roccat_reader *reader = file->private_data;
struct roccat_device *device = reader->device;
struct roccat_report *report;
ssize_t retval = 0, len;
DECLARE_WAITQUEUE(wait, current);
mutex_lock(&device->cbuf_lock);
...
report = &device->cbuf[reader->cbuf_start];
/*
* If report is larger than requested amount of data, rest of report
* is lost!
*/
len = device->report_size > count ? count : device->report_size;
if (copy_to_user(buffer, report->value, len)) {
retval = -EFAULT;
goto exit_unlock;
}
...
The roccat_read() function receives the device->cbuf report and
delivers it to the user through copy_to_user().
If the N+ROCCAT_CBUF_SIZE th report is received while copying of
the Nth report->value is in progress, the pointer that copy_to_user()
is working on is kfree()ed and UAF read may occur. (race condition)
Since the device node of this driver does not set separate permissions,
this is not a security vulnerability, but because it is used for
requesting screen display of profile or dpi settings,
a user using the roccat device can apply udev to this device node or
There is a possibility to use it by giving.
Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-roccat.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/hid/hid-roccat.c b/drivers/hid/hid-roccat.c
index fb77dec720a4..edfaf2cd0f26 100644
--- a/drivers/hid/hid-roccat.c
+++ b/drivers/hid/hid-roccat.c
@@ -260,6 +260,8 @@ int roccat_report_event(int minor, u8 const *data)
if (!new_value)
return -ENOMEM;
+ mutex_lock(&device->cbuf_lock);
+
report = &device->cbuf[device->cbuf_end];
/* passing NULL is safe */
@@ -279,6 +281,8 @@ int roccat_report_event(int minor, u8 const *data)
reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;
}
+ mutex_unlock(&device->cbuf_lock);
+
wake_up_interruptible(&device->wait);
return 0;
}
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 198/210] md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (196 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 197/210] HID: roccat: Fix use-after-free in roccat_read() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 199/210] usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info() Greg Kroah-Hartman
` (14 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Logan Gunthorpe, Song Liu, Sasha Levin
From: Logan Gunthorpe <logang@deltatee.com>
[ Upstream commit 5e2cf333b7bd5d3e62595a44d598a254c697cd74 ]
A complicated deadlock exists when using the journal and an elevated
group_thrtead_cnt. It was found with loop devices, but its not clear
whether it can be seen with real disks. The deadlock can occur simply
by writing data with an fio script.
When the deadlock occurs, multiple threads will hang in different ways:
1) The group threads will hang in the blk-wbt code with bios waiting to
be submitted to the block layer:
io_schedule+0x70/0xb0
rq_qos_wait+0x153/0x210
wbt_wait+0x115/0x1b0
io_schedule+0x70/0xb0
rq_qos_wait+0x153/0x210
wbt_wait+0x115/0x1b0
__rq_qos_throttle+0x38/0x60
blk_mq_submit_bio+0x589/0xcd0
wbt_wait+0x115/0x1b0
__rq_qos_throttle+0x38/0x60
blk_mq_submit_bio+0x589/0xcd0
__submit_bio+0xe6/0x100
submit_bio_noacct_nocheck+0x42e/0x470
submit_bio_noacct+0x4c2/0xbb0
ops_run_io+0x46b/0x1a30
handle_stripe+0xcd3/0x36b0
handle_active_stripes.constprop.0+0x6f6/0xa60
raid5_do_work+0x177/0x330
Or:
io_schedule+0x70/0xb0
rq_qos_wait+0x153/0x210
wbt_wait+0x115/0x1b0
__rq_qos_throttle+0x38/0x60
blk_mq_submit_bio+0x589/0xcd0
__submit_bio+0xe6/0x100
submit_bio_noacct_nocheck+0x42e/0x470
submit_bio_noacct+0x4c2/0xbb0
flush_deferred_bios+0x136/0x170
raid5_do_work+0x262/0x330
2) The r5l_reclaim thread will hang in the same way, submitting a
bio to the block layer:
io_schedule+0x70/0xb0
rq_qos_wait+0x153/0x210
wbt_wait+0x115/0x1b0
__rq_qos_throttle+0x38/0x60
blk_mq_submit_bio+0x589/0xcd0
__submit_bio+0xe6/0x100
submit_bio_noacct_nocheck+0x42e/0x470
submit_bio_noacct+0x4c2/0xbb0
submit_bio+0x3f/0xf0
md_super_write+0x12f/0x1b0
md_update_sb.part.0+0x7c6/0xff0
md_update_sb+0x30/0x60
r5l_do_reclaim+0x4f9/0x5e0
r5l_reclaim_thread+0x69/0x30b
However, before hanging, the MD_SB_CHANGE_PENDING flag will be
set for sb_flags in r5l_write_super_and_discard_space(). This
flag will never be cleared because the submit_bio() call never
returns.
3) Due to the MD_SB_CHANGE_PENDING flag being set, handle_stripe()
will do no processing on any pending stripes and re-set
STRIPE_HANDLE. This will cause the raid5d thread to enter an
infinite loop, constantly trying to handle the same stripes
stuck in the queue.
The raid5d thread has a blk_plug that holds a number of bios
that are also stuck waiting seeing the thread is in a loop
that never schedules. These bios have been accounted for by
blk-wbt thus preventing the other threads above from
continuing when they try to submit bios. --Deadlock.
To fix this, add the same wait_event() that is used in raid5_do_work()
to raid5d() such that if MD_SB_CHANGE_PENDING is set, the thread will
schedule and wait until the flag is cleared. The schedule action will
flush the plug which will allow the r5l_reclaim thread to continue,
thus preventing the deadlock.
However, md_check_recovery() calls can also clear MD_SB_CHANGE_PENDING
from the same thread and can thus deadlock if the thread is put to
sleep. So avoid waiting if md_check_recovery() is being called in the
loop.
It's not clear when the deadlock was introduced, but the similar
wait_event() call in raid5_do_work() was added in 2017 by this
commit:
16d997b78b15 ("md/raid5: simplfy delaying of writes while metadata
is updated.")
Link: https://lore.kernel.org/r/7f3b87b6-b52a-f737-51d7-a4eec5c44112@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/md/raid5.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 78b48dca3fda..dc053a43a3dc 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -44,6 +44,7 @@
*/
#include <linux/blkdev.h>
+#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/raid/pq.h>
#include <linux/async_tx.h>
@@ -6308,7 +6309,18 @@ static void raid5d(struct md_thread *thread)
spin_unlock_irq(&conf->device_lock);
md_check_recovery(mddev);
spin_lock_irq(&conf->device_lock);
+
+ /*
+ * Waiting on MD_SB_CHANGE_PENDING below may deadlock
+ * seeing md_check_recovery() is needed to clear
+ * the flag when using mdmon.
+ */
+ continue;
}
+
+ wait_event_lock_irq(mddev->sb_wait,
+ !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags),
+ conf->device_lock);
}
pr_debug("%d stripes handled\n", handled);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 199/210] usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (197 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 198/210] md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 200/210] usb: musb: Fix musb_gadget.c rxstate overflow bug Greg Kroah-Hartman
` (13 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jianglei Nie, Mathias Nyman, Sasha Levin
From: Jianglei Nie <niejianglei2021@163.com>
[ Upstream commit 7e271f42a5cc3768cd2622b929ba66859ae21f97 ]
xhci_alloc_stream_info() allocates stream context array for stream_info
->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs,
stream_info->stream_ctx_array is not released, which will lead to a
memory leak.
We can fix it by releasing the stream_info->stream_ctx_array with
xhci_free_stream_ctx() on the error path to avoid the potential memory
leak.
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/host/xhci-mem.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index e930e2777c87..ae724460c8f2 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -657,7 +657,7 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci,
num_stream_ctxs, &stream_info->ctx_array_dma,
mem_flags);
if (!stream_info->stream_ctx_array)
- goto cleanup_ctx;
+ goto cleanup_ring_array;
memset(stream_info->stream_ctx_array, 0,
sizeof(struct xhci_stream_ctx)*num_stream_ctxs);
@@ -718,6 +718,11 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci,
}
xhci_free_command(xhci, stream_info->free_streams_command);
cleanup_ctx:
+ xhci_free_stream_ctx(xhci,
+ stream_info->num_stream_ctxs,
+ stream_info->stream_ctx_array,
+ stream_info->ctx_array_dma);
+cleanup_ring_array:
kfree(stream_info->stream_rings);
cleanup_info:
kfree(stream_info);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 200/210] usb: musb: Fix musb_gadget.c rxstate overflow bug
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (198 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 199/210] usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info() Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 201/210] Revert "usb: storage: Add quirk for Samsung Fit flash" Greg Kroah-Hartman
` (12 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Robin Guo, Sasha Levin
From: Robin Guo <guoweibin@inspur.com>
[ Upstream commit eea4c860c3b366369eff0489d94ee4f0571d467d ]
The usb function device call musb_gadget_queue() adds the passed
request to musb_ep::req_list,If the (request->length > musb_ep->packet_sz)
and (is_buffer_mapped(req) return false),the rxstate() will copy all data
in fifo to request->buf which may cause request->buf out of bounds.
Fix it by add the length check :
fifocnt = min_t(unsigned, request->length - request->actual, fifocnt);
Signed-off-by: Robin Guo <guoweibin@inspur.com>
Link: https://lore.kernel.org/r/20220906102119.1b071d07a8391ff115e6d1ef@inspur.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/musb/musb_gadget.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 319c5a1b4a6a..8fd68f45a8df 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -785,6 +785,9 @@ static void rxstate(struct musb *musb, struct musb_request *req)
musb_writew(epio, MUSB_RXCSR, csr);
buffer_aint_mapped:
+ fifo_count = min_t(unsigned int,
+ request->length - request->actual,
+ (unsigned int)fifo_count);
musb_read_fifo(musb_ep->hw_ep, fifo_count, (u8 *)
(request->buf + request->actual));
request->actual += fifo_count;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 201/210] Revert "usb: storage: Add quirk for Samsung Fit flash"
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (199 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 200/210] usb: musb: Fix musb_gadget.c rxstate overflow bug Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:31 ` [PATCH 4.14 202/210] usb: idmouse: fix an uninit-value in idmouse_open Greg Kroah-Hartman
` (11 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, sunghwan jung, Sasha Levin
From: sunghwan jung <onenowy@gmail.com>
[ Upstream commit ad5dbfc123e6ffbbde194e2a4603323e09f741ee ]
This reverts commit 86d92f5465958752481269348d474414dccb1552,
which fix the timeout issue for "Samsung Fit Flash".
But the commit affects not only "Samsung Fit Flash" but also other usb
storages that use the same controller and causes severe performance
regression.
# hdparm -t /dev/sda (without the quirk)
Timing buffered disk reads: 622 MB in 3.01 seconds = 206.66 MB/sec
# hdparm -t /dev/sda (with the quirk)
Timing buffered disk reads: 220 MB in 3.00 seconds = 73.32 MB/sec
The commit author mentioned that "Issue was reproduced after device has
bad block", so this quirk should be applied when we have the timeout
issue with a device that has bad blocks.
We revert the commit so that we apply this quirk by adding kernel
paramters using a bootloader or other ways when we really need it,
without the performance regression with devices that don't have the
issue.
Signed-off-by: sunghwan jung <onenowy@gmail.com>
Link: https://lore.kernel.org/r/20220913114913.3073-1-onenowy@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/storage/unusual_devs.h | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 8c186ab5b5f7..8b38dd7d89b7 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1294,12 +1294,6 @@ UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999,
USB_SC_RBC, USB_PR_BULK, NULL,
0 ),
-UNUSUAL_DEV(0x090c, 0x1000, 0x1100, 0x1100,
- "Samsung",
- "Flash Drive FIT",
- USB_SC_DEVICE, USB_PR_DEVICE, NULL,
- US_FL_MAX_SECTORS_64),
-
/* aeb */
UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff,
"Feiya",
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 202/210] usb: idmouse: fix an uninit-value in idmouse_open
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (200 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 201/210] Revert "usb: storage: Add quirk for Samsung Fit flash" Greg Kroah-Hartman
@ 2022-10-24 11:31 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 203/210] perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc Greg Kroah-Hartman
` (10 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:31 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+79832d33eb89fb3cd092,
Dongliang Mu, Sasha Levin
From: Dongliang Mu <mudongliangabcd@gmail.com>
[ Upstream commit bce2b0539933e485d22d6f6f076c0fcd6f185c4c ]
In idmouse_create_image, if any ftip_command fails, it will
go to the reset label. However, this leads to the data in
bulk_in_buffer[HEADER..IMGSIZE] uninitialized. And the check
for valid image incurs an uninitialized dereference.
Fix this by moving the check before reset label since this
check only be valid if the data after bulk_in_buffer[HEADER]
has concrete data.
Note that this is found by KMSAN, so only kernel compilation
is tested.
Reported-by: syzbot+79832d33eb89fb3cd092@syzkaller.appspotmail.com
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20220922134847.1101921-1-dzm91@hust.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/misc/idmouse.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index 01ef2551be46..974b8d0621bd 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -182,10 +182,6 @@ static int idmouse_create_image(struct usb_idmouse *dev)
bytes_read += bulk_read;
}
- /* reset the device */
-reset:
- ftip_command(dev, FTIP_RELEASE, 0, 0);
-
/* check for valid image */
/* right border should be black (0x00) */
for (bytes_read = sizeof(HEADER)-1 + WIDTH-1; bytes_read < IMGSIZE; bytes_read += WIDTH)
@@ -197,6 +193,10 @@ static int idmouse_create_image(struct usb_idmouse *dev)
if (dev->bulk_in_buffer[bytes_read] != 0xFF)
return -EAGAIN;
+ /* reset the device */
+reset:
+ ftip_command(dev, FTIP_RELEASE, 0, 0);
+
/* should be IMGSIZE == 65040 */
dev_dbg(&dev->interface->dev, "read %d bytes fingerprint data\n",
bytes_read);
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 203/210] perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (201 preceding siblings ...)
2022-10-24 11:31 ` [PATCH 4.14 202/210] usb: idmouse: fix an uninit-value in idmouse_open Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 204/210] net: ieee802154: return -EINVAL for unknown addr type Greg Kroah-Hartman
` (9 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Adrian Hunter, Namhyung Kim,
Ian Rogers, Jiri Olsa, Arnaldo Carvalho de Melo
From: Adrian Hunter <adrian.hunter@intel.com>
commit 5a3d47071f0ced0431ef82a5fb6bd077ed9493db upstream.
uClibc segfaulted because NULL was passed as the format to fprintf().
That happened because one of the format strings was missing and
intel_pt_print_info() didn't check that before calling fprintf().
Add the missing format string, and check format is not NULL before calling
fprintf().
Fixes: 11fa7cb86b56d361 ("perf tools: Pass Intel PT information for decoding MTC and CYC")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221012082259.22394-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/perf/util/intel-pt.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -2411,6 +2411,7 @@ static const char * const intel_pt_info_
[INTEL_PT_SNAPSHOT_MODE] = " Snapshot mode %"PRId64"\n",
[INTEL_PT_PER_CPU_MMAPS] = " Per-cpu maps %"PRId64"\n",
[INTEL_PT_MTC_BIT] = " MTC bit %#"PRIx64"\n",
+ [INTEL_PT_MTC_FREQ_BITS] = " MTC freq bits %#"PRIx64"\n",
[INTEL_PT_TSC_CTC_N] = " TSC:CTC numerator %"PRIu64"\n",
[INTEL_PT_TSC_CTC_D] = " TSC:CTC denominator %"PRIu64"\n",
[INTEL_PT_CYC_BIT] = " CYC bit %#"PRIx64"\n",
@@ -2425,8 +2426,12 @@ static void intel_pt_print_info(u64 *arr
if (!dump_trace)
return;
- for (i = start; i <= finish; i++)
- fprintf(stdout, intel_pt_info_fmts[i], arr[i]);
+ for (i = start; i <= finish; i++) {
+ const char *fmt = intel_pt_info_fmts[i];
+
+ if (fmt)
+ fprintf(stdout, fmt, arr[i]);
+ }
}
static void intel_pt_print_info_str(const char *name, const char *str)
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 204/210] net: ieee802154: return -EINVAL for unknown addr type
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (202 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 203/210] perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 205/210] net/ieee802154: dont warn zero-sized raw_sendmsg() Greg Kroah-Hartman
` (8 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Alexander Aring, David S. Miller
From: Alexander Aring <aahringo@redhat.com>
commit 30393181fdbc1608cc683b4ee99dcce05ffcc8c7 upstream.
This patch adds handling to return -EINVAL for an unknown addr type. The
current behaviour is to return 0 as successful but the size of an
unknown addr type is not defined and should return an error like -EINVAL.
Fixes: 94160108a70c ("net/ieee802154: fix uninit value bug in dgram_sendmsg")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/net/ieee802154_netdev.h | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -193,21 +193,27 @@ static inline int
ieee802154_sockaddr_check_size(struct sockaddr_ieee802154 *daddr, int len)
{
struct ieee802154_addr_sa *sa;
+ int ret = 0;
sa = &daddr->addr;
if (len < IEEE802154_MIN_NAMELEN)
return -EINVAL;
switch (sa->addr_type) {
+ case IEEE802154_ADDR_NONE:
+ break;
case IEEE802154_ADDR_SHORT:
if (len < IEEE802154_NAMELEN_SHORT)
- return -EINVAL;
+ ret = -EINVAL;
break;
case IEEE802154_ADDR_LONG:
if (len < IEEE802154_NAMELEN_LONG)
- return -EINVAL;
+ ret = -EINVAL;
+ break;
+ default:
+ ret = -EINVAL;
break;
}
- return 0;
+ return ret;
}
static inline void ieee802154_addr_from_sa(struct ieee802154_addr *a,
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 205/210] net/ieee802154: dont warn zero-sized raw_sendmsg()
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (203 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 204/210] net: ieee802154: return -EINVAL for unknown addr type Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 206/210] ext4: continue to expand file system when the target size doesnt reach Greg Kroah-Hartman
` (7 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot, Tetsuo Handa,
Alexander Aring, Stefan Schmidt, Sasha Levin
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
[ Upstream commit b12e924a2f5b960373459c8f8a514f887adf5cac ]
syzbot is hitting skb_assert_len() warning at __dev_queue_xmit() [1],
for PF_IEEE802154 socket's zero-sized raw_sendmsg() request is hitting
__dev_queue_xmit() with skb->len == 0.
Since PF_IEEE802154 socket's zero-sized raw_sendmsg() request was
able to return 0, don't call __dev_queue_xmit() if packet length is 0.
----------
#include <sys/socket.h>
#include <netinet/in.h>
int main(int argc, char *argv[])
{
struct sockaddr_in addr = { .sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK) };
struct iovec iov = { };
struct msghdr hdr = { .msg_name = &addr, .msg_namelen = sizeof(addr), .msg_iov = &iov, .msg_iovlen = 1 };
sendmsg(socket(PF_IEEE802154, SOCK_RAW, 0), &hdr, 0);
return 0;
}
----------
Note that this might be a sign that commit fd1894224407c484 ("bpf: Don't
redirect packets with invalid pkt_len") should be reverted, for
skb->len == 0 was acceptable for at least PF_IEEE802154 socket.
Link: https://syzkaller.appspot.com/bug?extid=5ea725c25d06fb9114c4 [1]
Reported-by: syzbot <syzbot+5ea725c25d06fb9114c4@syzkaller.appspotmail.com>
Fixes: fd1894224407c484 ("bpf: Don't redirect packets with invalid pkt_len")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20221005014750.3685555-2-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ieee802154/socket.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index 16bf114118c3..a8929675b5ab 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -284,6 +284,10 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
err = -EMSGSIZE;
goto out_dev;
}
+ if (!size) {
+ err = 0;
+ goto out_dev;
+ }
hlen = LL_RESERVED_SPACE(dev);
tlen = dev->needed_tailroom;
--
2.35.1
^ permalink raw reply related [flat|nested] 214+ messages in thread* [PATCH 4.14 206/210] ext4: continue to expand file system when the target size doesnt reach
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (204 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 205/210] net/ieee802154: dont warn zero-sized raw_sendmsg() Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 207/210] md: Replace snprintf with scnprintf Greg Kroah-Hartman
` (6 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jerry Lee, Theodore Tso
From: Jerry Lee 李修賢 <jerrylee@qnap.com>
commit df3cb754d13d2cd5490db9b8d536311f8413a92e upstream.
When expanding a file system from (16TiB-2MiB) to 18TiB, the operation
exits early which leads to result inconsistency between resize2fs and
Ext4 kernel driver.
=== before ===
○ → resize2fs /dev/mapper/thin
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/mapper/thin is mounted on /mnt/test; on-line resizing required
old_desc_blocks = 2048, new_desc_blocks = 2304
The filesystem on /dev/mapper/thin is now 4831837696 (4k) blocks long.
[ 865.186308] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
[ 912.091502] dm-4: detected capacity change from 34359738368 to 38654705664
[ 970.030550] dm-5: detected capacity change from 34359734272 to 38654701568
[ 1000.012751] EXT4-fs (dm-5): resizing filesystem from 4294966784 to 4831837696 blocks
[ 1000.012878] EXT4-fs (dm-5): resized filesystem to 4294967296
=== after ===
[ 129.104898] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
[ 143.773630] dm-4: detected capacity change from 34359738368 to 38654705664
[ 198.203246] dm-5: detected capacity change from 34359734272 to 38654701568
[ 207.918603] EXT4-fs (dm-5): resizing filesystem from 4294966784 to 4831837696 blocks
[ 207.918754] EXT4-fs (dm-5): resizing filesystem from 4294967296 to 4831837696 blocks
[ 207.918758] EXT4-fs (dm-5): Converting file system to meta_bg
[ 207.918790] EXT4-fs (dm-5): resizing filesystem from 4294967296 to 4831837696 blocks
[ 221.454050] EXT4-fs (dm-5): resized to 4658298880 blocks
[ 227.634613] EXT4-fs (dm-5): resized filesystem to 4831837696
Signed-off-by: Jerry Lee <jerrylee@qnap.com>
Link: https://lore.kernel.org/r/PU1PR04MB22635E739BD21150DC182AC6A18C9@PU1PR04MB2263.apcprd04.prod.outlook.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/resize.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -2062,7 +2062,7 @@ retry:
goto out;
}
- if (ext4_blocks_count(es) == n_blocks_count)
+ if (ext4_blocks_count(es) == n_blocks_count && n_blocks_count_retry == 0)
goto out;
err = ext4_alloc_flex_bg_array(sb, n_group + 1);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 207/210] md: Replace snprintf with scnprintf
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (205 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 206/210] ext4: continue to expand file system when the target size doesnt reach Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 208/210] efi: libstub: drop pointless get_memory_map() call Greg Kroah-Hartman
` (5 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Kelley, Guoqing Jiang,
Saurabh Sengar, Song Liu
From: Saurabh Sengar <ssengar@linux.microsoft.com>
commit 1727fd5015d8f93474148f94e34cda5aa6ad4a43 upstream.
Current code produces a warning as shown below when total characters
in the constituent block device names plus the slashes exceeds 200.
snprintf() returns the number of characters generated from the given
input, which could cause the expression “200 – len” to wrap around
to a large positive number. Fix this by using scnprintf() instead,
which returns the actual number of characters written into the buffer.
[ 1513.267938] ------------[ cut here ]------------
[ 1513.267943] WARNING: CPU: 15 PID: 37247 at <snip>/lib/vsprintf.c:2509 vsnprintf+0x2c8/0x510
[ 1513.267944] Modules linked in: <snip>
[ 1513.267969] CPU: 15 PID: 37247 Comm: mdadm Not tainted 5.4.0-1085-azure #90~18.04.1-Ubuntu
[ 1513.267969] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022
[ 1513.267971] RIP: 0010:vsnprintf+0x2c8/0x510
<-snip->
[ 1513.267982] Call Trace:
[ 1513.267986] snprintf+0x45/0x70
[ 1513.267990] ? disk_name+0x71/0xa0
[ 1513.267993] dump_zones+0x114/0x240 [raid0]
[ 1513.267996] ? _cond_resched+0x19/0x40
[ 1513.267998] raid0_run+0x19e/0x270 [raid0]
[ 1513.268000] md_run+0x5e0/0xc50
[ 1513.268003] ? security_capable+0x3f/0x60
[ 1513.268005] do_md_run+0x19/0x110
[ 1513.268006] md_ioctl+0x195e/0x1f90
[ 1513.268007] blkdev_ioctl+0x91f/0x9f0
[ 1513.268010] block_ioctl+0x3d/0x50
[ 1513.268012] do_vfs_ioctl+0xa9/0x640
[ 1513.268014] ? __fput+0x162/0x260
[ 1513.268016] ksys_ioctl+0x75/0x80
[ 1513.268017] __x64_sys_ioctl+0x1a/0x20
[ 1513.268019] do_syscall_64+0x5e/0x200
[ 1513.268021] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: 766038846e875 ("md/raid0: replace printk() with pr_*()")
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Acked-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/md/raid0.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -70,8 +70,8 @@ static void dump_zones(struct mddev *mdd
int len = 0;
for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
- len += snprintf(line+len, 200-len, "%s%s", k?"/":"",
- bdevname(conf->devlist[j*raid_disks
+ len += scnprintf(line+len, 200-len, "%s%s", k?"/":"",
+ bdevname(conf->devlist[j*raid_disks
+ k]->bdev, b));
pr_debug("md: zone%d=[%s]\n", j, line);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 208/210] efi: libstub: drop pointless get_memory_map() call
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (206 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 207/210] md: Replace snprintf with scnprintf Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 209/210] inet: fully convert sk->sk_rx_dst to RCU rules Greg Kroah-Hartman
` (4 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Ard Biesheuvel
From: Ard Biesheuvel <ardb@kernel.org>
commit d80ca810f096ff66f451e7a3ed2f0cd9ef1ff519 upstream.
Currently, the non-x86 stub code calls get_memory_map() redundantly,
given that the data it returns is never used anywhere. So drop the call.
Cc: <stable@vger.kernel.org> # v4.14+
Fixes: 24d7c494ce46 ("efi/arm-stub: Round up FDT allocation to mapping size")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/firmware/efi/libstub/fdt.c | 8 --------
1 file changed, 8 deletions(-)
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -301,14 +301,6 @@ efi_status_t allocate_new_fdt_and_exit_b
goto fail;
}
- /*
- * Now that we have done our final memory allocation (and free)
- * we can get the memory map key needed for exit_boot_services().
- */
- status = efi_get_memory_map(sys_table, &map);
- if (status != EFI_SUCCESS)
- goto fail_free_new_fdt;
-
status = update_fdt(sys_table, (void *)fdt_addr, fdt_size,
(void *)*new_fdt_addr, MAX_FDT_SIZE, cmdline_ptr,
initrd_addr, initrd_size);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 209/210] inet: fully convert sk->sk_rx_dst to RCU rules
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (207 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 208/210] efi: libstub: drop pointless get_memory_map() call Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 11:32 ` [PATCH 4.14 210/210] thermal: intel_powerclamp: Use first online CPU as control_cpu Greg Kroah-Hartman
` (3 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Jakub Kicinski, Carlos Llamas
From: Eric Dumazet <edumazet@google.com>
commit 8f905c0e7354ef261360fb7535ea079b1082c105 upstream.
syzbot reported various issues around early demux,
one being included in this changelog [1]
sk->sk_rx_dst is using RCU protection without clearly
documenting it.
And following sequences in tcp_v4_do_rcv()/tcp_v6_do_rcv()
are not following standard RCU rules.
[a] dst_release(dst);
[b] sk->sk_rx_dst = NULL;
They look wrong because a delete operation of RCU protected
pointer is supposed to clear the pointer before
the call_rcu()/synchronize_rcu() guarding actual memory freeing.
In some cases indeed, dst could be freed before [b] is done.
We could cheat by clearing sk_rx_dst before calling
dst_release(), but this seems the right time to stick
to standard RCU annotations and debugging facilities.
[1]
BUG: KASAN: use-after-free in dst_check include/net/dst.h:470 [inline]
BUG: KASAN: use-after-free in tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792
Read of size 2 at addr ffff88807f1cb73a by task syz-executor.5/9204
CPU: 0 PID: 9204 Comm: syz-executor.5 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247
__kasan_report mm/kasan/report.c:433 [inline]
kasan_report.cold+0x83/0xdf mm/kasan/report.c:450
dst_check include/net/dst.h:470 [inline]
tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792
ip_rcv_finish_core.constprop.0+0x15de/0x1e80 net/ipv4/ip_input.c:340
ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583
ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]
ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644
__netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
__netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556
__netif_receive_skb_list net/core/dev.c:5608 [inline]
netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699
gro_normal_list net/core/dev.c:5853 [inline]
gro_normal_list net/core/dev.c:5849 [inline]
napi_complete_done+0x1f1/0x880 net/core/dev.c:6590
virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557
__napi_poll+0xaf/0x440 net/core/dev.c:7023
napi_poll net/core/dev.c:7090 [inline]
net_rx_action+0x801/0xb40 net/core/dev.c:7177
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
common_interrupt+0x52/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0033:0x7f5e972bfd57
Code: 39 d1 73 14 0f 1f 80 00 00 00 00 48 8b 50 f8 48 83 e8 08 48 39 ca 77 f3 48 39 c3 73 3e 48 89 13 48 8b 50 f8 48 89 38 49 8b 0e <48> 8b 3e 48 83 c3 08 48 83 c6 08 eb bc 48 39 d1 72 9e 48 39 d0 73
RSP: 002b:00007fff8a413210 EFLAGS: 00000283
RAX: 00007f5e97108990 RBX: 00007f5e97108338 RCX: ffffffff81d3aa45
RDX: ffffffff81d3aa45 RSI: 00007f5e97108340 RDI: ffffffff81d3aa45
RBP: 00007f5e97107eb8 R08: 00007f5e97108d88 R09: 0000000093c2e8d9
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f5e97107eb0
R13: 00007f5e97108338 R14: 00007f5e97107ea8 R15: 0000000000000019
</TASK>
Allocated by task 13:
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:3234 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247
dst_alloc+0x146/0x1f0 net/core/dst.c:92
rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613
ip_route_input_slow+0x1817/0x3a20 net/ipv4/route.c:2340
ip_route_input_rcu net/ipv4/route.c:2470 [inline]
ip_route_input_noref+0x116/0x2a0 net/ipv4/route.c:2415
ip_rcv_finish_core.constprop.0+0x288/0x1e80 net/ipv4/ip_input.c:354
ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583
ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]
ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644
__netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
__netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556
__netif_receive_skb_list net/core/dev.c:5608 [inline]
netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699
gro_normal_list net/core/dev.c:5853 [inline]
gro_normal_list net/core/dev.c:5849 [inline]
napi_complete_done+0x1f1/0x880 net/core/dev.c:6590
virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557
__napi_poll+0xaf/0x440 net/core/dev.c:7023
napi_poll net/core/dev.c:7090 [inline]
net_rx_action+0x801/0xb40 net/core/dev.c:7177
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
Freed by task 13:
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free mm/kasan/common.c:328 [inline]
__kasan_slab_free+0xff/0x130 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:1723 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749
slab_free mm/slub.c:3513 [inline]
kmem_cache_free+0xbd/0x5d0 mm/slub.c:3530
dst_destroy+0x2d6/0x3f0 net/core/dst.c:127
rcu_do_batch kernel/rcu/tree.c:2506 [inline]
rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2741
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
Last potentially related work creation:
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
__kasan_record_aux_stack+0xf5/0x120 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:2985 [inline]
call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065
dst_release net/core/dst.c:177 [inline]
dst_release+0x79/0xe0 net/core/dst.c:167
tcp_v4_do_rcv+0x612/0x8d0 net/ipv4/tcp_ipv4.c:1712
sk_backlog_rcv include/net/sock.h:1030 [inline]
__release_sock+0x134/0x3b0 net/core/sock.c:2768
release_sock+0x54/0x1b0 net/core/sock.c:3300
tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1441
inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
sock_write_iter+0x289/0x3c0 net/socket.c:1057
call_write_iter include/linux/fs.h:2162 [inline]
new_sync_write+0x429/0x660 fs/read_write.c:503
vfs_write+0x7cd/0xae0 fs/read_write.c:590
ksys_write+0x1ee/0x250 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
The buggy address belongs to the object at ffff88807f1cb700
which belongs to the cache ip_dst_cache of size 176
The buggy address is located 58 bytes inside of
176-byte region [ffff88807f1cb700, ffff88807f1cb7b0)
The buggy address belongs to the page:
page:ffffea0001fc72c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7f1cb
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 dead000000000100 dead000000000122 ffff8881413bb780
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5, ts 108466983062, free_ts 108048976062
prep_new_page mm/page_alloc.c:2418 [inline]
get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369
alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
alloc_slab_page mm/slub.c:1793 [inline]
allocate_slab mm/slub.c:1930 [inline]
new_slab+0x32d/0x4a0 mm/slub.c:1993
___slab_alloc+0x918/0xfe0 mm/slub.c:3022
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
slab_alloc_node mm/slub.c:3200 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc+0x35c/0x3a0 mm/slub.c:3247
dst_alloc+0x146/0x1f0 net/core/dst.c:92
rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613
__mkroute_output net/ipv4/route.c:2564 [inline]
ip_route_output_key_hash_rcu+0x921/0x2d00 net/ipv4/route.c:2791
ip_route_output_key_hash+0x18b/0x300 net/ipv4/route.c:2619
__ip_route_output_key include/net/route.h:126 [inline]
ip_route_output_flow+0x23/0x150 net/ipv4/route.c:2850
ip_route_output_key include/net/route.h:142 [inline]
geneve_get_v4_rt+0x3a6/0x830 drivers/net/geneve.c:809
geneve_xmit_skb drivers/net/geneve.c:899 [inline]
geneve_xmit+0xc4a/0x3540 drivers/net/geneve.c:1082
__netdev_start_xmit include/linux/netdevice.h:4994 [inline]
netdev_start_xmit include/linux/netdevice.h:5008 [inline]
xmit_one net/core/dev.c:3590 [inline]
dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3606
__dev_queue_xmit+0x299a/0x3650 net/core/dev.c:4229
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1338 [inline]
free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389
free_unref_page_prepare mm/page_alloc.c:3309 [inline]
free_unref_page+0x19/0x690 mm/page_alloc.c:3388
qlink_free mm/kasan/quarantine.c:146 [inline]
qlist_free_all+0x5a/0xc0 mm/kasan/quarantine.c:165
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
__kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:3234 [inline]
kmem_cache_alloc_node+0x255/0x3f0 mm/slub.c:3270
__alloc_skb+0x215/0x340 net/core/skbuff.c:414
alloc_skb include/linux/skbuff.h:1126 [inline]
alloc_skb_with_frags+0x93/0x620 net/core/skbuff.c:6078
sock_alloc_send_pskb+0x783/0x910 net/core/sock.c:2575
mld_newpack+0x1df/0x770 net/ipv6/mcast.c:1754
add_grhead+0x265/0x330 net/ipv6/mcast.c:1857
add_grec+0x1053/0x14e0 net/ipv6/mcast.c:1995
mld_send_initial_cr.part.0+0xf6/0x230 net/ipv6/mcast.c:2242
mld_send_initial_cr net/ipv6/mcast.c:1232 [inline]
mld_dad_work+0x1d3/0x690 net/ipv6/mcast.c:2268
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
Memory state around the buggy address:
ffff88807f1cb600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807f1cb680: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
>ffff88807f1cb700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807f1cb780: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
ffff88807f1cb800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
Fixes: 41063e9dd119 ("ipv4: Early TCP socket demux.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20211220143330.680945-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[cmllamas: fixed trivial merge conflict]
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/net/sock.h | 2 +-
net/ipv4/af_inet.c | 2 +-
net/ipv4/tcp.c | 3 +--
net/ipv4/tcp_input.c | 2 +-
net/ipv4/tcp_ipv4.c | 11 +++++++----
net/ipv4/udp.c | 6 +++---
net/ipv6/tcp_ipv6.c | 11 +++++++----
net/ipv6/udp.c | 4 ++--
8 files changed, 23 insertions(+), 18 deletions(-)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -389,7 +389,7 @@ struct sock {
#ifdef CONFIG_XFRM
struct xfrm_policy __rcu *sk_policy[2];
#endif
- struct dst_entry *sk_rx_dst;
+ struct dst_entry __rcu *sk_rx_dst;
struct dst_entry __rcu *sk_dst_cache;
atomic_t sk_omem_alloc;
int sk_sndbuf;
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -156,7 +156,7 @@ void inet_sock_destruct(struct sock *sk)
kfree(rcu_dereference_protected(inet->inet_opt, 1));
dst_release(rcu_dereference_check(sk->sk_dst_cache, 1));
- dst_release(sk->sk_rx_dst);
+ dst_release(rcu_dereference_protected(sk->sk_rx_dst, 1));
sk_refcnt_debug_dec(sk);
}
EXPORT_SYMBOL(inet_sock_destruct);
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2385,8 +2385,7 @@ int tcp_disconnect(struct sock *sk, int
tcp_init_send_head(sk);
memset(&tp->rx_opt, 0, sizeof(tp->rx_opt));
__sk_dst_reset(sk);
- dst_release(sk->sk_rx_dst);
- sk->sk_rx_dst = NULL;
+ dst_release(xchg((__force struct dst_entry **)&sk->sk_rx_dst, NULL));
tcp_saved_syn_free(tp);
tp->segs_in = 0;
tp->segs_out = 0;
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5452,7 +5452,7 @@ void tcp_rcv_established(struct sock *sk
struct tcp_sock *tp = tcp_sk(sk);
tcp_mstamp_refresh(tp);
- if (unlikely(!sk->sk_rx_dst))
+ if (unlikely(!rcu_access_pointer(sk->sk_rx_dst)))
inet_csk(sk)->icsk_af_ops->sk_rx_dst_set(sk, skb);
/*
* Header prediction.
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1473,15 +1473,18 @@ int tcp_v4_do_rcv(struct sock *sk, struc
struct sock *rsk;
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst;
+
+ dst = rcu_dereference_protected(sk->sk_rx_dst,
+ lockdep_sock_is_held(sk));
sock_rps_save_rxhash(sk, skb);
sk_mark_napi_id(sk, skb);
if (dst) {
if (inet_sk(sk)->rx_dst_ifindex != skb->skb_iif ||
!dst->ops->check(dst, 0)) {
+ RCU_INIT_POINTER(sk->sk_rx_dst, NULL);
dst_release(dst);
- sk->sk_rx_dst = NULL;
}
}
tcp_rcv_established(sk, skb, tcp_hdr(skb));
@@ -1556,7 +1559,7 @@ int tcp_v4_early_demux(struct sk_buff *s
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk_fullsock(sk)) {
- struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
+ struct dst_entry *dst = rcu_dereference(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, 0);
@@ -1849,7 +1852,7 @@ void inet_sk_rx_dst_set(struct sock *sk,
struct dst_entry *dst = skb_dst(skb);
if (dst && dst_hold_safe(dst)) {
- sk->sk_rx_dst = dst;
+ rcu_assign_pointer(sk->sk_rx_dst, dst);
inet_sk(sk)->rx_dst_ifindex = skb->skb_iif;
}
}
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1955,7 +1955,7 @@ bool udp_sk_rx_dst_set(struct sock *sk,
struct dst_entry *old;
if (dst_hold_safe(dst)) {
- old = xchg(&sk->sk_rx_dst, dst);
+ old = xchg((__force struct dst_entry **)&sk->sk_rx_dst, dst);
dst_release(old);
return old != dst;
}
@@ -2145,7 +2145,7 @@ int __udp4_lib_rcv(struct sk_buff *skb,
struct dst_entry *dst = skb_dst(skb);
int ret;
- if (unlikely(sk->sk_rx_dst != dst))
+ if (unlikely(rcu_dereference(sk->sk_rx_dst) != dst))
udp_sk_rx_dst_set(sk, dst);
ret = udp_unicast_rcv_skb(sk, skb, uh);
@@ -2303,7 +2303,7 @@ int udp_v4_early_demux(struct sk_buff *s
skb->sk = sk;
skb->destructor = sock_efree;
- dst = READ_ONCE(sk->sk_rx_dst);
+ dst = rcu_dereference(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, 0);
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -95,7 +95,7 @@ static void inet6_sk_rx_dst_set(struct s
if (dst && dst_hold_safe(dst)) {
const struct rt6_info *rt = (const struct rt6_info *)dst;
- sk->sk_rx_dst = dst;
+ rcu_assign_pointer(sk->sk_rx_dst, dst);
inet_sk(sk)->rx_dst_ifindex = skb->skb_iif;
inet6_sk(sk)->rx_dst_cookie = rt6_get_cookie(rt);
}
@@ -1318,15 +1318,18 @@ static int tcp_v6_do_rcv(struct sock *sk
opt_skb = skb_clone(skb, sk_gfp_mask(sk, GFP_ATOMIC));
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst;
+
+ dst = rcu_dereference_protected(sk->sk_rx_dst,
+ lockdep_sock_is_held(sk));
sock_rps_save_rxhash(sk, skb);
sk_mark_napi_id(sk, skb);
if (dst) {
if (inet_sk(sk)->rx_dst_ifindex != skb->skb_iif ||
dst->ops->check(dst, np->rx_dst_cookie) == NULL) {
+ RCU_INIT_POINTER(sk->sk_rx_dst, NULL);
dst_release(dst);
- sk->sk_rx_dst = NULL;
}
}
@@ -1659,7 +1662,7 @@ static void tcp_v6_early_demux(struct sk
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk_fullsock(sk)) {
- struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
+ struct dst_entry *dst = rcu_dereference(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -848,7 +848,7 @@ int __udp6_lib_rcv(struct sk_buff *skb,
struct dst_entry *dst = skb_dst(skb);
int ret;
- if (unlikely(sk->sk_rx_dst != dst))
+ if (unlikely(rcu_dereference(sk->sk_rx_dst) != dst))
udp6_sk_rx_dst_set(sk, dst);
if (!uh->check && !udp_sk(sk)->no_check6_rx) {
@@ -960,7 +960,7 @@ static void udp_v6_early_demux(struct sk
skb->sk = sk;
skb->destructor = sock_efree;
- dst = READ_ONCE(sk->sk_rx_dst);
+ dst = rcu_dereference(sk->sk_rx_dst);
if (dst)
dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
^ permalink raw reply [flat|nested] 214+ messages in thread* [PATCH 4.14 210/210] thermal: intel_powerclamp: Use first online CPU as control_cpu
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (208 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 209/210] inet: fully convert sk->sk_rx_dst to RCU rules Greg Kroah-Hartman
@ 2022-10-24 11:32 ` Greg Kroah-Hartman
2022-10-24 16:41 ` [PATCH 4.14 000/210] 4.14.296-rc1 review Jon Hunter
` (2 subsequent siblings)
212 siblings, 0 replies; 214+ messages in thread
From: Greg Kroah-Hartman @ 2022-10-24 11:32 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Rafael J. Wysocki, Chen Yu
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
commit 4bb7f6c2781e46fc5bd00475a66df2ea30ef330d upstream.
Commit 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead
of smp_processor_id() to avoid crash") fixed an issue related to using
smp_processor_id() in preemptible context by replacing it with a pair
of get_cpu()/put_cpu(), but what is needed there really is any online
CPU and not necessarily the one currently running the code. Arguably,
getting the one that's running the code in there is confusing.
For this reason, simply give the control CPU role to the first online
one which automatically will be CPU0 if it is online, so one check
can be dropped from the code for an added benefit.
Link: https://lore.kernel.org/linux-pm/20221011113646.GA12080@duo.ucw.cz/
Fixes: 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/thermal/intel_powerclamp.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -549,11 +549,7 @@ static int start_power_clamp(void)
get_online_cpus();
/* prefer BSP */
- control_cpu = 0;
- if (!cpu_online(control_cpu)) {
- control_cpu = get_cpu();
- put_cpu();
- }
+ control_cpu = cpumask_first(cpu_online_mask);
clamping = true;
schedule_delayed_work(&poll_pkg_cstate_work, 0);
^ permalink raw reply [flat|nested] 214+ messages in thread* Re: [PATCH 4.14 000/210] 4.14.296-rc1 review
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (209 preceding siblings ...)
2022-10-24 11:32 ` [PATCH 4.14 210/210] thermal: intel_powerclamp: Use first online CPU as control_cpu Greg Kroah-Hartman
@ 2022-10-24 16:41 ` Jon Hunter
2022-10-25 4:29 ` Guenter Roeck
2022-10-25 17:38 ` Naresh Kamboju
212 siblings, 0 replies; 214+ messages in thread
From: Jon Hunter @ 2022-10-24 16:41 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Greg Kroah-Hartman, stable, torvalds, akpm, linux, shuah,
patches, lkft-triage, pavel, jonathanh, f.fainelli,
sudipm.mukherjee, srw, linux-tegra
On Mon, 24 Oct 2022 13:28:37 +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.14.296 release.
> There are 210 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 26 Oct 2022 11:29:24 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.296-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
All tests passing for Tegra ...
Test results for stable-v4.14:
8 builds: 8 pass, 0 fail
16 boots: 16 pass, 0 fail
32 tests: 32 pass, 0 fail
Linux version: 4.14.296-rc1-ga6ecd3a0366a
Boards tested: tegra124-jetson-tk1, tegra20-ventana,
tegra210-p2371-2180, tegra30-cardhu-a04
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Jon
^ permalink raw reply [flat|nested] 214+ messages in thread* Re: [PATCH 4.14 000/210] 4.14.296-rc1 review
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (210 preceding siblings ...)
2022-10-24 16:41 ` [PATCH 4.14 000/210] 4.14.296-rc1 review Jon Hunter
@ 2022-10-25 4:29 ` Guenter Roeck
2022-10-25 17:38 ` Naresh Kamboju
212 siblings, 0 replies; 214+ messages in thread
From: Guenter Roeck @ 2022-10-25 4:29 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: linux-kernel, stable, torvalds, akpm, shuah, patches,
lkft-triage, pavel, jonathanh, f.fainelli, sudipm.mukherjee, srw
On Mon, Oct 24, 2022 at 01:28:37PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.14.296 release.
> There are 210 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 26 Oct 2022 11:29:24 +0000.
> Anything received after that time might be too late.
>
Build results:
total: 170 pass: 170 fail: 0
Qemu test results:
total: 422 pass: 422 fail: 0
Tested-by: Guenter Roeck <linux@roeck-us.net>
Guenter
^ permalink raw reply [flat|nested] 214+ messages in thread* Re: [PATCH 4.14 000/210] 4.14.296-rc1 review
2022-10-24 11:28 [PATCH 4.14 000/210] 4.14.296-rc1 review Greg Kroah-Hartman
` (211 preceding siblings ...)
2022-10-25 4:29 ` Guenter Roeck
@ 2022-10-25 17:38 ` Naresh Kamboju
212 siblings, 0 replies; 214+ messages in thread
From: Naresh Kamboju @ 2022-10-25 17:38 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: linux-kernel, stable, torvalds, akpm, linux, shuah, patches,
lkft-triage, pavel, jonathanh, f.fainelli, sudipm.mukherjee, srw
On Mon, 24 Oct 2022 at 17:17, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 4.14.296 release.
> There are 210 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 26 Oct 2022 11:29:24 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.296-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
Results from Linaro's test farm.
No regressions on arm64, arm, x86_64, and i386.
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
## Build
* kernel: 4.14.296-rc1
* git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
* git branch: linux-4.14.y
* git commit: a6ecd3a0366ab2989ed6efc0f00a9af63cd46086
* git describe: v4.14.295-211-ga6ecd3a0366a
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-4.14.y/build/v4.14.295-211-ga6ecd3a0366a
## No Test Regressions (compared to v4.14.295)
## No Metric Regressions (compared to v4.14.295)
## No Test Fixes (compared to v4.14.295)
## No Metric Fixes (compared to v4.14.295)
## Test result summary
total: 103404, pass: 86901, fail: 1381, skip: 14220, xfail: 902
## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 313 total, 308 passed, 5 failed
* arm64: 53 total, 50 passed, 3 failed
* i386: 29 total, 28 passed, 1 failed
* mips: 41 total, 41 passed, 0 failed
* parisc: 12 total, 12 passed, 0 failed
* powerpc: 20 total, 19 passed, 1 failed
* s390: 15 total, 11 passed, 4 failed
* sh: 24 total, 24 passed, 0 failed
* sparc: 12 total, 12 passed, 0 failed
* x86_64: 50 total, 49 passed, 1 failed
## Test suites summary
* fwts
* igt-gpu-tools
* kselftest-android
* kselftest-arm64
* kselftest-arm64/arm64.btitest.bti_c_func
* kselftest-arm64/arm64.btitest.bti_j_func
* kselftest-arm64/arm64.btitest.bti_jc_func
* kselftest-arm64/arm64.btitest.bti_none_func
* kselftest-arm64/arm64.btitest.nohint_func
* kselftest-arm64/arm64.btitest.paciasp_func
* kselftest-arm64/arm64.nobtitest.bti_c_func
* kselftest-arm64/arm64.nobtitest.bti_j_func
* kselftest-arm64/arm64.nobtitest.bti_jc_func
* kselftest-arm64/arm64.nobtitest.bti_none_func
* kselftest-arm64/arm64.nobtitest.nohint_func
* kselftest-arm64/arm64.nobtitest.paciasp_func
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-drivers-dma-buf
* kselftest-efivarfs
* kselftest-filesystems
* kselftest-filesystems-binderfs
* kselftest-firmware
* kselftest-fpu
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-ir
* kselftest-kcmp
* kselftest-kexec
* kselftest-kvm
* kselftest-lib
* kselftest-livepatch
* kselftest-membarrier
* kselftest-net
* kselftest-net-forwarding
* kselftest-netfilter
* kselftest-nsfs
* kselftest-openat2
* kselftest-pid_namespace
* kselftest-pidfd
* kselftest-proc
* kselftest-pstore
* kselftest-ptrace
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-splice
* kselftest-static_keys
* kselftest-sync
* kselftest-sysctl
* kselftest-tc-testing
* kselftest-timens
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user
* kselftest-vm
* kselftest-x86
* kselftest-zram
* kunit
* kvm-unit-tests
* libhugetlbfs
* log-parser-boot
* log-parser-test
* ltp-cap_bounds
* ltp-commands
* ltp-containers
* ltp-controllers
* ltp-cpuhotplug
* ltp-crypto
* ltp-cve
* ltp-dio
* ltp-fcntl-locktests
* ltp-filecaps
* ltp-fs
* ltp-fs_bind
* ltp-fs_perms_simple
* ltp-fsx
* ltp-hugetlb
* ltp-io
* ltp-ipc
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-open-posix-tests
* ltp-pty
* ltp-sched
* ltp-securebits
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* network-basic-tests
* packetdrill
* rcutorture
* v4l2-compliance
* vdso
--
Linaro LKFT
https://lkft.linaro.org
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