* [PATCH 4.14 001/186] Bluetooth: bfusb: fix division by zero in send path
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 002/186] USB: core: Fix bug in resuming hubs handling of wakeup requests Greg Kroah-Hartman
` (185 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Johan Hovold, Marcel Holtmann
From: Johan Hovold <johan@kernel.org>
commit b5e6fa7a12572c82f1e7f2f51fbb02a322291291 upstream.
Add the missing bulk-out endpoint sanity check to probe() to avoid
division by zero in bfusb_send_frame() in case a malicious device has
broken descriptors (or when doing descriptor fuzz testing).
Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/bluetooth/bfusb.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -644,6 +644,9 @@ static int bfusb_probe(struct usb_interf
data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress;
data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
+ if (!data->bulk_pkt_size)
+ goto done;
+
rwlock_init(&data->lock);
data->reassembly = NULL;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 002/186] USB: core: Fix bug in resuming hubs handling of wakeup requests
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 001/186] Bluetooth: bfusb: fix division by zero in send path Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 003/186] USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status Greg Kroah-Hartman
` (184 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jonathan McDowell, Alan Stern
From: Alan Stern <stern@rowland.harvard.edu>
commit 0f663729bb4afc92a9986b66131ebd5b8a9254d1 upstream.
Bugzilla #213839 reports a 7-port hub that doesn't work properly when
devices are plugged into some of the ports; the kernel goes into an
unending disconnect/reinitialize loop as shown in the bug report.
This "7-port hub" comprises two four-port hubs with one plugged into
the other; the failures occur when a device is plugged into one of the
downstream hub's ports. (These hubs have other problems too. For
example, they bill themselves as USB-2.0 compliant but they only run
at full speed.)
It turns out that the failures are caused by bugs in both the kernel
and the hub. The hub's bug is that it reports a different
bmAttributes value in its configuration descriptor following a remote
wakeup (0xe0 before, 0xc0 after -- the wakeup-support bit has
changed).
The kernel's bug is inside the hub driver's resume handler. When
hub_activate() sees that one of the hub's downstream ports got a
wakeup request from a child device, it notes this fact by setting the
corresponding bit in the hub->change_bits variable. But this variable
is meant for connection changes, not wakeup events; setting it causes
the driver to believe the downstream port has been disconnected and
then connected again (in addition to having received a wakeup
request).
Because of this, the hub driver then tries to check whether the device
currently plugged into the downstream port is the same as the device
that had been attached there before. Normally this check succeeds and
wakeup handling continues with no harm done (which is why the bug
remained undetected until now). But with these dodgy hubs, the check
fails because the config descriptor has changed. This causes the hub
driver to reinitialize the child device, leading to the
disconnect/reinitialize loop described in the bug report.
The proper way to note reception of a downstream wakeup request is
to set a bit in the hub->event_bits variable instead of
hub->change_bits. That way the hub driver will realize that something
has happened to the port but will not think the port and child device
have been disconnected. This patch makes that change.
Cc: <stable@vger.kernel.org>
Tested-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/YdCw7nSfWYPKWQoD@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/core/hub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1192,7 +1192,7 @@ static void hub_activate(struct usb_hub
*/
if (portchange || (hub_is_superspeed(hub->hdev) &&
port_resumed))
- set_bit(port1, hub->change_bits);
+ set_bit(port1, hub->event_bits);
} else if (udev->persist_enabled) {
#ifdef CONFIG_PM
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 003/186] USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 001/186] Bluetooth: bfusb: fix division by zero in send path Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 002/186] USB: core: Fix bug in resuming hubs handling of wakeup requests Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 004/186] mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe() Greg Kroah-Hartman
` (183 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alan Stern, syzbot+3ae6a2b06f131ab9849f
From: Alan Stern <stern@rowland.harvard.edu>
commit 1d7d4c07932e04355d6e6528d44a2f2c9e354346 upstream.
When the USB core code for getting root-hub status reports was
originally written, it was assumed that the hub driver would be its
only caller. But this isn't true now; user programs can use usbfs to
communicate with root hubs and get status reports. When they do this,
they may use a transfer_buffer that is smaller than the data returned
by the HCD, which will lead to a buffer overflow error when
usb_hcd_poll_rh_status() tries to store the status data. This was
discovered by syzbot:
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]
BUG: KASAN: slab-out-of-bounds in usb_hcd_poll_rh_status+0x5f4/0x780 drivers/usb/core/hcd.c:776
Write of size 2 at addr ffff88801da403c0 by task syz-executor133/4062
This patch fixes the bug by reducing the amount of status data if it
won't fit in the transfer_buffer. If some data gets discarded then
the URB's completion status is set to -EOVERFLOW rather than 0, to let
the user know what happened.
Reported-and-tested-by: syzbot+3ae6a2b06f131ab9849f@syzkaller.appspotmail.com
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/Yc+3UIQJ2STbxNua@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/core/hcd.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -761,6 +761,7 @@ void usb_hcd_poll_rh_status(struct usb_h
{
struct urb *urb;
int length;
+ int status;
unsigned long flags;
char buffer[6]; /* Any root hubs with > 31 ports? */
@@ -778,11 +779,17 @@ void usb_hcd_poll_rh_status(struct usb_h
if (urb) {
clear_bit(HCD_FLAG_POLL_PENDING, &hcd->flags);
hcd->status_urb = NULL;
+ if (urb->transfer_buffer_length >= length) {
+ status = 0;
+ } else {
+ status = -EOVERFLOW;
+ length = urb->transfer_buffer_length;
+ }
urb->actual_length = length;
memcpy(urb->transfer_buffer, buffer, length);
usb_hcd_unlink_urb_from_ep(hcd, urb);
- usb_hcd_giveback_urb(hcd, urb, 0);
+ usb_hcd_giveback_urb(hcd, urb, status);
} else {
length = 0;
set_bit(HCD_FLAG_POLL_PENDING, &hcd->flags);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 004/186] mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (2 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 003/186] USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 005/186] can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data Greg Kroah-Hartman
` (182 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Orlando Chamberlain, Aditya Garg,
Andy Shevchenko, Lee Jones
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
commit c9e143084d1a602f829115612e1ec79df3727c8b upstream.
The runtime PM callback may be called as soon as the runtime PM facility
is enabled and activated. It means that ->suspend() may be called before
we finish probing the device in the ACPI case. Hence, NULL pointer
dereference:
intel-lpss INT34BA:00: IRQ index 0 not found
BUG: kernel NULL pointer dereference, address: 0000000000000030
...
Workqueue: pm pm_runtime_work
RIP: 0010:intel_lpss_suspend+0xb/0x40 [intel_lpss]
To fix this, first try to register the device and only after that enable
runtime PM facility.
Fixes: 4b45efe85263 ("mfd: Add support for Intel Sunrisepoint LPSS devices")
Reported-by: Orlando Chamberlain <redecorating@protonmail.com>
Reported-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211101190008.86473-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mfd/intel-lpss-acpi.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/mfd/intel-lpss-acpi.c
+++ b/drivers/mfd/intel-lpss-acpi.c
@@ -80,6 +80,7 @@ static int intel_lpss_acpi_probe(struct
{
struct intel_lpss_platform_info *info;
const struct acpi_device_id *id;
+ int ret;
id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev);
if (!id)
@@ -93,10 +94,14 @@ static int intel_lpss_acpi_probe(struct
info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
info->irq = platform_get_irq(pdev, 0);
+ ret = intel_lpss_probe(&pdev->dev, info);
+ if (ret)
+ return ret;
+
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
- return intel_lpss_probe(&pdev->dev, info);
+ return 0;
}
static int intel_lpss_acpi_remove(struct platform_device *pdev)
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 005/186] can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (3 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 004/186] mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 006/186] can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved} Greg Kroah-Hartman
` (181 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Marc Kleine-Budde
From: Marc Kleine-Budde <mkl@pengutronix.de>
commit 4a8737ff068724f509d583fef404d349adba80d6 upstream.
The received data contains the channel the received data is associated
with. If the channel number is bigger than the actual number of
channels assume broken or malicious USB device and shut it down.
This fixes the error found by clang:
| drivers/net/can/usb/gs_usb.c:386:6: error: variable 'dev' is used
| uninitialized whenever 'if' condition is true
| if (hf->channel >= GS_MAX_INTF)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| drivers/net/can/usb/gs_usb.c:474:10: note: uninitialized use occurs here
| hf, dev->gs_hf_size, gs_usb_receive_bulk_callback,
| ^~~
Link: https://lore.kernel.org/all/20211210091158.408326-1-mkl@pengutronix.de
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/can/usb/gs_usb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -328,7 +328,7 @@ static void gs_usb_receive_bulk_callback
/* device reports out of range channel id */
if (hf->channel >= GS_MAX_INTF)
- goto resubmit_urb;
+ goto device_detach;
dev = usbcan->canch[hf->channel];
@@ -413,6 +413,7 @@ static void gs_usb_receive_bulk_callback
/* USB failure take down all interfaces */
if (rc == -ENODEV) {
+ device_detach:
for (rc = 0; rc < GS_MAX_INTF; rc++) {
if (usbcan->canch[rc])
netif_device_detach(usbcan->canch[rc]->netdev);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 006/186] can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved}
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (4 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 005/186] can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 007/186] random: fix data race on crng_node_pool Greg Kroah-Hartman
` (180 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Brian Silverman, Marc Kleine-Budde
From: Brian Silverman <brian.silverman@bluerivertech.com>
commit 89d58aebe14a365c25ba6645414afdbf4e41cea4 upstream.
No information is deliberately sent in hf->flags in host -> device
communications, but the open-source candleLight firmware echoes it
back, which can result in the GS_CAN_FLAG_OVERFLOW flag being set and
generating spurious ERRORFRAMEs.
While there also initialize the reserved member with 0.
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/all/20220106002952.25883-1-brian.silverman@bluerivertech.com
Link: https://github.com/candle-usb/candleLight_fw/issues/87
Cc: stable@vger.kernel.org
Signed-off-by: Brian Silverman <brian.silverman@bluerivertech.com>
[mkl: initialize the reserved member, too]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/can/usb/gs_usb.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -515,6 +515,8 @@ static netdev_tx_t gs_can_start_xmit(str
hf->echo_id = idx;
hf->channel = dev->channel;
+ hf->flags = 0;
+ hf->reserved = 0;
cf = (struct can_frame *)skb->data;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 007/186] random: fix data race on crng_node_pool
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (5 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 006/186] can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved} Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 008/186] random: fix data race on crng init time Greg Kroah-Hartman
` (179 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Biggers, Paul E. McKenney,
Jason A. Donenfeld
From: Eric Biggers <ebiggers@google.com>
commit 5d73d1e320c3fd94ea15ba5f79301da9a8bcc7de upstream.
extract_crng() and crng_backtrack_protect() load crng_node_pool with a
plain load, which causes undefined behavior if do_numa_crng_init()
modifies it concurrently.
Fix this by using READ_ONCE(). Note: as per the previous discussion
https://lore.kernel.org/lkml/20211219025139.31085-1-ebiggers@kernel.org/T/#u,
READ_ONCE() is believed to be sufficient here, and it was requested that
it be used here instead of smp_load_acquire().
Also change do_numa_crng_init() to set crng_node_pool using
cmpxchg_release() instead of mb() + cmpxchg(), as the former is
sufficient here but is more lightweight.
Fixes: 1e7f583af67b ("random: make /dev/urandom scalable for silly userspace programs")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/random.c | 42 ++++++++++++++++++++++--------------------
1 file changed, 22 insertions(+), 20 deletions(-)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -813,8 +813,8 @@ static void do_numa_crng_init(struct wor
crng_initialize(crng);
pool[i] = crng;
}
- mb();
- if (cmpxchg(&crng_node_pool, NULL, pool)) {
+ /* pairs with READ_ONCE() in select_crng() */
+ if (cmpxchg_release(&crng_node_pool, NULL, pool) != NULL) {
for_each_node(i)
kfree(pool[i]);
kfree(pool);
@@ -827,8 +827,26 @@ static void numa_crng_init(void)
{
schedule_work(&numa_crng_init_work);
}
+
+static struct crng_state *select_crng(void)
+{
+ struct crng_state **pool;
+ int nid = numa_node_id();
+
+ /* pairs with cmpxchg_release() in do_numa_crng_init() */
+ pool = READ_ONCE(crng_node_pool);
+ if (pool && pool[nid])
+ return pool[nid];
+
+ return &primary_crng;
+}
#else
static void numa_crng_init(void) {}
+
+static struct crng_state *select_crng(void)
+{
+ return &primary_crng;
+}
#endif
/*
@@ -977,15 +995,7 @@ static void _extract_crng(struct crng_st
static void extract_crng(__u8 out[CHACHA20_BLOCK_SIZE])
{
- struct crng_state *crng = NULL;
-
-#ifdef CONFIG_NUMA
- if (crng_node_pool)
- crng = crng_node_pool[numa_node_id()];
- if (crng == NULL)
-#endif
- crng = &primary_crng;
- _extract_crng(crng, out);
+ _extract_crng(select_crng(), out);
}
/*
@@ -1014,15 +1024,7 @@ static void _crng_backtrack_protect(stru
static void crng_backtrack_protect(__u8 tmp[CHACHA20_BLOCK_SIZE], int used)
{
- struct crng_state *crng = NULL;
-
-#ifdef CONFIG_NUMA
- if (crng_node_pool)
- crng = crng_node_pool[numa_node_id()];
- if (crng == NULL)
-#endif
- crng = &primary_crng;
- _crng_backtrack_protect(crng, tmp, used);
+ _crng_backtrack_protect(select_crng(), tmp, used);
}
static ssize_t extract_crng_user(void __user *buf, size_t nbytes)
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 008/186] random: fix data race on crng init time
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (6 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 007/186] random: fix data race on crng_node_pool Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 009/186] staging: wlan-ng: Avoid bitwise vs logical OR warning in hfa384x_usb_throttlefn() Greg Kroah-Hartman
` (178 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Biggers, Paul E. McKenney,
Jason A. Donenfeld
From: Eric Biggers <ebiggers@google.com>
commit 009ba8568be497c640cab7571f7bfd18345d7b24 upstream.
_extract_crng() does plain loads of crng->init_time and
crng_global_init_time, which causes undefined behavior if
crng_reseed() and RNDRESEEDCRNG modify these corrently.
Use READ_ONCE() and WRITE_ONCE() to make the behavior defined.
Don't fix the race on crng->init_time by protecting it with crng->lock,
since it's not a problem for duplicate reseedings to occur. I.e., the
lockless access with READ_ONCE() is fine.
Fixes: d848e5f8e1eb ("random: add new ioctl RNDRESEEDCRNG")
Fixes: e192be9d9a30 ("random: replace non-blocking pool with a Chacha20-based CRNG")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/random.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -951,7 +951,7 @@ static void crng_reseed(struct crng_stat
crng->state[i+4] ^= buf.key[i] ^ rv;
}
memzero_explicit(&buf, sizeof(buf));
- crng->init_time = jiffies;
+ WRITE_ONCE(crng->init_time, jiffies);
spin_unlock_irqrestore(&crng->lock, flags);
if (crng == &primary_crng && crng_init < 2) {
invalidate_batched_entropy();
@@ -978,12 +978,15 @@ static void crng_reseed(struct crng_stat
static void _extract_crng(struct crng_state *crng,
__u8 out[CHACHA20_BLOCK_SIZE])
{
- unsigned long v, flags;
+ unsigned long v, flags, init_time;
- if (crng_ready() &&
- (time_after(crng_global_init_time, crng->init_time) ||
- time_after(jiffies, crng->init_time + CRNG_RESEED_INTERVAL)))
- crng_reseed(crng, crng == &primary_crng ? &input_pool : NULL);
+ if (crng_ready()) {
+ init_time = READ_ONCE(crng->init_time);
+ if (time_after(READ_ONCE(crng_global_init_time), init_time) ||
+ time_after(jiffies, init_time + CRNG_RESEED_INTERVAL))
+ crng_reseed(crng, crng == &primary_crng ?
+ &input_pool : NULL);
+ }
spin_lock_irqsave(&crng->lock, flags);
if (arch_get_random_long(&v))
crng->state[14] ^= v;
@@ -1987,7 +1990,7 @@ static long random_ioctl(struct file *f,
if (crng_init < 2)
return -ENODATA;
crng_reseed(&primary_crng, &input_pool);
- crng_global_init_time = jiffies - 1;
+ WRITE_ONCE(crng_global_init_time, jiffies - 1);
return 0;
default:
return -EINVAL;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 009/186] staging: wlan-ng: Avoid bitwise vs logical OR warning in hfa384x_usb_throttlefn()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (7 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 008/186] random: fix data race on crng init time Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 010/186] drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk() Greg Kroah-Hartman
` (177 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Nathan Chancellor
From: Nathan Chancellor <nathan@kernel.org>
commit 502408a61f4b7eb4713f44bd77f4a48e6cb1b59a upstream.
A new warning in clang points out a place in this file where a bitwise
OR is being used with boolean expressions:
In file included from drivers/staging/wlan-ng/prism2usb.c:2:
drivers/staging/wlan-ng/hfa384x_usb.c:3787:7: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/wlan-ng/hfa384x_usb.c:3787:7: note: cast one or both operands to int to silence this warning
1 warning generated.
The comment explains that short circuiting here is undesirable, as the
calls to test_and_{clear,set}_bit() need to happen for both sides of the
expression.
Clang's suggestion would work to silence the warning but the readability
of the expression would suffer even more. To clean up the warning and
make the block more readable, use a variable for each side of the
bitwise expression.
Link: https://github.com/ClangBuiltLinux/linux/issues/1478
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211014215703.3705371-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/wlan-ng/hfa384x_usb.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -3904,18 +3904,18 @@ static void hfa384x_usb_throttlefn(unsig
spin_lock_irqsave(&hw->ctlxq.lock, flags);
- /*
- * We need to check BOTH the RX and the TX throttle controls,
- * so we use the bitwise OR instead of the logical OR.
- */
pr_debug("flags=0x%lx\n", hw->usb_flags);
- if (!hw->wlandev->hwremoved &&
- ((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
- !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags)) |
- (test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) &&
- !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags))
- )) {
- schedule_work(&hw->usb_work);
+ if (!hw->wlandev->hwremoved) {
+ bool rx_throttle = test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
+ !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags);
+ bool tx_throttle = test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) &&
+ !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags);
+ /*
+ * We need to check BOTH the RX and the TX throttle controls,
+ * so we use the bitwise OR instead of the logical OR.
+ */
+ if (rx_throttle | tx_throttle)
+ schedule_work(&hw->usb_work);
}
spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 010/186] drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (8 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 009/186] staging: wlan-ng: Avoid bitwise vs logical OR warning in hfa384x_usb_throttlefn() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 011/186] orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() Greg Kroah-Hartman
` (176 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nick Desaulniers, Nathan Chancellor,
Dávid Bolvanský, Ville Syrjälä
From: Nathan Chancellor <nathan@kernel.org>
commit 2e70570656adfe1c5d9a29940faa348d5f132199 upstream.
A new warning in clang points out a place in this file where a bitwise
OR is being used with boolean types:
drivers/gpu/drm/i915/intel_pm.c:3066:12: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This construct is intentional, as it allows every one of the calls to
ilk_increase_wm_latency() to occur (instead of short circuiting with
logical OR) while still caring about the result of each call.
To make this clearer to the compiler, use the '|=' operator to assign
the result of each ilk_increase_wm_latency() call to changed, which
keeps the meaning of the code the same but makes it obvious that every
one of these calls is expected to happen.
Link: https://github.com/ClangBuiltLinux/linux/issues/1473
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Dávid Bolvanský <david.bolvansky@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014211916.3550122-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/i915/intel_pm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2985,9 +2985,9 @@ static void snb_wm_latency_quirk(struct
* The BIOS provided WM memory latency values are often
* inadequate for high resolution displays. Adjust them.
*/
- changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) |
- ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, 12) |
- ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, 12);
+ changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12);
+ changed |= ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, 12);
+ changed |= ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, 12);
if (!changed)
return;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 011/186] orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (9 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 010/186] drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 012/186] media: uvcvideo: fix division by zero at stream start Greg Kroah-Hartman
` (175 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Mike Marshall
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
commit 40a74870b2d1d3d44e13b3b73c6571dd34f5614d upstream.
'buffer_index_array' really looks like a bitmap. So it should be allocated
as such.
When kzalloc is called, a number of bytes is expected, but a number of
longs is passed instead.
In get(), if not enough memory is allocated, un-allocated memory may be
read or written.
So use bitmap_zalloc() to safely allocate the correct memory size and
avoid un-expected behavior.
While at it, change the corresponding kfree() into bitmap_free() to keep
the semantic.
Fixes: ea2c9c9f6574 ("orangefs: bufmap rewrite")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/orangefs/orangefs-bufmap.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/fs/orangefs/orangefs-bufmap.c
+++ b/fs/orangefs/orangefs-bufmap.c
@@ -179,7 +179,7 @@ orangefs_bufmap_free(struct orangefs_buf
{
kfree(bufmap->page_array);
kfree(bufmap->desc_array);
- kfree(bufmap->buffer_index_array);
+ bitmap_free(bufmap->buffer_index_array);
kfree(bufmap);
}
@@ -243,8 +243,7 @@ orangefs_bufmap_alloc(struct ORANGEFS_de
bufmap->desc_size = user_desc->size;
bufmap->desc_shift = ilog2(bufmap->desc_size);
- bufmap->buffer_index_array =
- kzalloc(DIV_ROUND_UP(bufmap->desc_count, BITS_PER_LONG), GFP_KERNEL);
+ bufmap->buffer_index_array = bitmap_zalloc(bufmap->desc_count, GFP_KERNEL);
if (!bufmap->buffer_index_array)
goto out_free_bufmap;
@@ -267,7 +266,7 @@ orangefs_bufmap_alloc(struct ORANGEFS_de
out_free_desc_array:
kfree(bufmap->desc_array);
out_free_index_array:
- kfree(bufmap->buffer_index_array);
+ bitmap_free(bufmap->buffer_index_array);
out_free_bufmap:
kfree(bufmap);
out:
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 012/186] media: uvcvideo: fix division by zero at stream start
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (10 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 011/186] orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 013/186] rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled Greg Kroah-Hartman
` (174 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Kieran Bingham,
Laurent Pinchart, Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit 8aa637bf6d70d2fb2ad4d708d8b9dd02b1c095df upstream.
Add the missing bulk-endpoint max-packet sanity check to
uvc_video_start_transfer() to avoid division by zero in
uvc_alloc_urb_buffers() in case a malicious device has broken
descriptors (or when doing descriptor fuzz testing).
Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).
Fixes: c0efd232929c ("V4L/DVB (8145a): USB Video Class driver")
Cc: stable@vger.kernel.org # 2.6.26
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/uvc/uvc_video.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -1711,6 +1711,10 @@ static int uvc_init_video(struct uvc_str
if (ep == NULL)
return -EIO;
+ /* Reject broken descriptors. */
+ if (usb_endpoint_maxp(&ep->desc) == 0)
+ return -EIO;
+
ret = uvc_init_video_bulk(stream, ep, gfp_flags);
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 013/186] rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (11 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 012/186] media: uvcvideo: fix division by zero at stream start Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 014/186] Bluetooth: schedule SCO timeouts with delayed_work Greg Kroah-Hartman
` (173 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+cce1ee31614c171f5595,
Larry Finger, Kalle Valo
From: Larry Finger <Larry.Finger@lwfinger.net>
commit 8b144dedb928e4e2f433a328d58f44c3c098d63e upstream.
Syzbot reports the following WARNING:
[200~raw_local_irq_restore() called with IRQs enabled
WARNING: CPU: 1 PID: 1206 at kernel/locking/irqflag-debug.c:10
warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10
Hardware initialization for the rtl8188cu can run for as long as 350 ms,
and the routine may be called with interrupts disabled. To avoid locking
the machine for this long, the current routine saves the interrupt flags
and enables local interrupts. The problem is that it restores the flags
at the end without disabling local interrupts first.
This patch fixes commit a53268be0cb9 ("rtlwifi: rtl8192cu: Fix too long
disable of IRQs").
Reported-by: syzbot+cce1ee31614c171f5595@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Fixes: a53268be0cb9 ("rtlwifi: rtl8192cu: Fix too long disable of IRQs")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211215171105.20623-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
@@ -1020,6 +1020,7 @@ int rtl92cu_hw_init(struct ieee80211_hw
_InitPABias(hw);
rtl92c_dm_init(hw);
exit:
+ local_irq_disable();
local_irq_restore(flags);
return err;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 014/186] Bluetooth: schedule SCO timeouts with delayed_work
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (12 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 013/186] rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 015/186] Bluetooth: fix init and cleanup of sco_conn.timeout_work Greg Kroah-Hartman
` (172 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+2f6d7c28bb4bf7e82060,
Desmond Cheong Zhi Xi, Luiz Augusto von Dentz, Ovidiu Panait
From: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
commit ba316be1b6a00db7126ed9a39f9bee434a508043 upstream.
struct sock.sk_timer should be used as a sock cleanup timer. However,
SCO uses it to implement sock timeouts.
This causes issues because struct sock.sk_timer's callback is run in
an IRQ context, and the timer callback function sco_sock_timeout takes
a spin lock on the socket. However, other functions such as
sco_conn_del and sco_conn_ready take the spin lock with interrupts
enabled.
This inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} lock usage could
lead to deadlocks as reported by Syzbot [1]:
CPU0
----
lock(slock-AF_BLUETOOTH-BTPROTO_SCO);
<Interrupt>
lock(slock-AF_BLUETOOTH-BTPROTO_SCO);
To fix this, we use delayed work to implement SCO sock timouts
instead. This allows us to avoid taking the spin lock on the socket in
an IRQ context, and corrects the misuse of struct sock.sk_timer.
As a note, cancel_delayed_work is used instead of
cancel_delayed_work_sync in sco_sock_set_timer and
sco_sock_clear_timer to avoid a deadlock. In the future, the call to
bh_lock_sock inside sco_sock_timeout should be changed to lock_sock to
synchronize with other functions using lock_sock. However, since
sco_sock_set_timer and sco_sock_clear_timer are sometimes called under
the locked socket (in sco_connect and __sco_sock_close),
cancel_delayed_work_sync might cause them to sleep until an
sco_sock_timeout that has started finishes running. But
sco_sock_timeout would also sleep until it can grab the lock_sock.
Using cancel_delayed_work is fine because sco_sock_timeout does not
change from run to run, hence there is no functional difference
between:
1. waiting for a timeout to finish running before scheduling another
timeout
2. scheduling another timeout while a timeout is running.
Link: https://syzkaller.appspot.com/bug?id=9089d89de0502e120f234ca0fc8a703f7368b31e [1]
Reported-by: syzbot+2f6d7c28bb4bf7e82060@syzkaller.appspotmail.com
Tested-by: syzbot+2f6d7c28bb4bf7e82060@syzkaller.appspotmail.com
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[OP: adjusted context for 4.14]
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/bluetooth/sco.c | 35 +++++++++++++++++++++++++++++------
1 file changed, 29 insertions(+), 6 deletions(-)
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -48,6 +48,8 @@ struct sco_conn {
spinlock_t lock;
struct sock *sk;
+ struct delayed_work timeout_work;
+
unsigned int mtu;
};
@@ -73,9 +75,20 @@ struct sco_pinfo {
#define SCO_CONN_TIMEOUT (HZ * 40)
#define SCO_DISCONN_TIMEOUT (HZ * 2)
-static void sco_sock_timeout(unsigned long arg)
+static void sco_sock_timeout(struct work_struct *work)
{
- struct sock *sk = (struct sock *)arg;
+ struct sco_conn *conn = container_of(work, struct sco_conn,
+ timeout_work.work);
+ struct sock *sk;
+
+ sco_conn_lock(conn);
+ sk = conn->sk;
+ if (sk)
+ sock_hold(sk);
+ sco_conn_unlock(conn);
+
+ if (!sk)
+ return;
BT_DBG("sock %p state %d", sk, sk->sk_state);
@@ -89,14 +102,21 @@ static void sco_sock_timeout(unsigned lo
static void sco_sock_set_timer(struct sock *sk, long timeout)
{
+ if (!sco_pi(sk)->conn)
+ return;
+
BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout);
- sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout);
+ cancel_delayed_work(&sco_pi(sk)->conn->timeout_work);
+ schedule_delayed_work(&sco_pi(sk)->conn->timeout_work, timeout);
}
static void sco_sock_clear_timer(struct sock *sk)
{
+ if (!sco_pi(sk)->conn)
+ return;
+
BT_DBG("sock %p state %d", sk, sk->sk_state);
- sk_stop_timer(sk, &sk->sk_timer);
+ cancel_delayed_work(&sco_pi(sk)->conn->timeout_work);
}
/* ---- SCO connections ---- */
@@ -176,6 +196,9 @@ static void sco_conn_del(struct hci_conn
sco_chan_del(sk, err);
bh_unlock_sock(sk);
sock_put(sk);
+
+ /* Ensure no more work items will run before freeing conn. */
+ cancel_delayed_work_sync(&conn->timeout_work);
}
hcon->sco_data = NULL;
@@ -190,6 +213,8 @@ static void __sco_chan_add(struct sco_co
sco_pi(sk)->conn = conn;
conn->sk = sk;
+ INIT_DELAYED_WORK(&conn->timeout_work, sco_sock_timeout);
+
if (parent)
bt_accept_enqueue(parent, sk, true);
}
@@ -466,8 +491,6 @@ static struct sock *sco_sock_alloc(struc
sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;
- setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk);
-
bt_sock_link(&sco_sk_list, sk);
return sk;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 015/186] Bluetooth: fix init and cleanup of sco_conn.timeout_work
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (13 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 014/186] Bluetooth: schedule SCO timeouts with delayed_work Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 016/186] HID: uhid: Fix worker destroying device without any protection Greg Kroah-Hartman
` (171 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Desmond Cheong Zhi Xi,
Luiz Augusto von Dentz, Ovidiu Panait
From: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
commit 49d8a5606428ca0962d09050a5af81461ff90fbb upstream.
Before freeing struct sco_conn, all delayed timeout work should be
cancelled. Otherwise, sco_sock_timeout could potentially use the
sco_conn after it has been freed.
Additionally, sco_conn.timeout_work should be initialized when the
connection is allocated, not when the channel is added. This is
because an sco_conn can create channels with multiple sockets over its
lifetime, which happens if sockets are released but the connection
isn't deleted.
Fixes: ba316be1b6a0 ("Bluetooth: schedule SCO timeouts with delayed_work")
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[OP: adjusted context for 4.14]
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/bluetooth/sco.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -133,6 +133,7 @@ static struct sco_conn *sco_conn_add(str
return NULL;
spin_lock_init(&conn->lock);
+ INIT_DELAYED_WORK(&conn->timeout_work, sco_sock_timeout);
hcon->sco_data = conn;
conn->hcon = hcon;
@@ -196,11 +197,11 @@ static void sco_conn_del(struct hci_conn
sco_chan_del(sk, err);
bh_unlock_sock(sk);
sock_put(sk);
-
- /* Ensure no more work items will run before freeing conn. */
- cancel_delayed_work_sync(&conn->timeout_work);
}
+ /* Ensure no more work items will run before freeing conn. */
+ cancel_delayed_work_sync(&conn->timeout_work);
+
hcon->sco_data = NULL;
kfree(conn);
}
@@ -213,8 +214,6 @@ static void __sco_chan_add(struct sco_co
sco_pi(sk)->conn = conn;
conn->sk = sk;
- INIT_DELAYED_WORK(&conn->timeout_work, sco_sock_timeout);
-
if (parent)
bt_accept_enqueue(parent, sk, true);
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 016/186] HID: uhid: Fix worker destroying device without any protection
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (14 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 015/186] Bluetooth: fix init and cleanup of sco_conn.timeout_work Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 017/186] HID: wacom: Ignore the confidence flag when a touch is removed Greg Kroah-Hartman
` (170 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jann Horn, Jiri Kosina
From: Jann Horn <jannh@google.com>
commit 4ea5763fb79ed89b3bdad455ebf3f33416a81624 upstream.
uhid has to run hid_add_device() from workqueue context while allowing
parallel use of the userspace API (which is protected with ->devlock).
But hid_add_device() can fail. Currently, that is handled by immediately
destroying the associated HID device, without using ->devlock - but if
there are concurrent requests from userspace, that's wrong and leads to
NULL dereferences and/or memory corruption (via use-after-free).
Fix it by leaving the HID device as-is in the worker. We can clean it up
later, either in the UHID_DESTROY command handler or in the ->release()
handler.
Cc: stable@vger.kernel.org
Fixes: 67f8ecc550b5 ("HID: uhid: fix timeout when probe races with IO")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hid/uhid.c | 29 +++++++++++++++++++++++++----
1 file changed, 25 insertions(+), 4 deletions(-)
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -32,11 +32,22 @@
struct uhid_device {
struct mutex devlock;
+
+ /* This flag tracks whether the HID device is usable for commands from
+ * userspace. The flag is already set before hid_add_device(), which
+ * runs in workqueue context, to allow hid_add_device() to communicate
+ * with userspace.
+ * However, if hid_add_device() fails, the flag is cleared without
+ * holding devlock.
+ * We guarantee that if @running changes from true to false while you're
+ * holding @devlock, it's still fine to access @hid.
+ */
bool running;
__u8 *rd_data;
uint rd_size;
+ /* When this is NULL, userspace may use UHID_CREATE/UHID_CREATE2. */
struct hid_device *hid;
struct uhid_event input_buf;
@@ -67,9 +78,18 @@ static void uhid_device_add_worker(struc
if (ret) {
hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret);
- hid_destroy_device(uhid->hid);
- uhid->hid = NULL;
+ /* We used to call hid_destroy_device() here, but that's really
+ * messy to get right because we have to coordinate with
+ * concurrent writes from userspace that might be in the middle
+ * of using uhid->hid.
+ * Just leave uhid->hid as-is for now, and clean it up when
+ * userspace tries to close or reinitialize the uhid instance.
+ *
+ * However, we do have to clear the ->running flag and do a
+ * wakeup to make sure userspace knows that the device is gone.
+ */
uhid->running = false;
+ wake_up_interruptible(&uhid->report_wait);
}
}
@@ -478,7 +498,7 @@ static int uhid_dev_create2(struct uhid_
void *rd_data;
int ret;
- if (uhid->running)
+ if (uhid->hid)
return -EALREADY;
rd_size = ev->u.create2.rd_size;
@@ -559,7 +579,7 @@ static int uhid_dev_create(struct uhid_d
static int uhid_dev_destroy(struct uhid_device *uhid)
{
- if (!uhid->running)
+ if (!uhid->hid)
return -EINVAL;
uhid->running = false;
@@ -568,6 +588,7 @@ static int uhid_dev_destroy(struct uhid_
cancel_work_sync(&uhid->worker);
hid_destroy_device(uhid->hid);
+ uhid->hid = NULL;
kfree(uhid->rd_data);
return 0;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 017/186] HID: wacom: Ignore the confidence flag when a touch is removed
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (15 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 016/186] HID: uhid: Fix worker destroying device without any protection Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 018/186] HID: wacom: Avoid using stale array indicies to read contact count Greg Kroah-Hartman
` (169 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jason Gerecke, Ping Cheng, Jiri Kosina
From: Jason Gerecke <killertofu@gmail.com>
commit df03e9bd6d4806619b4cdc91a3d7695818a8e2b7 upstream.
AES hardware may internally re-classify a contact that it thought was
intentional as a palm. Intentional contacts are reported as "down" with
the confidence bit set. When this re-classification occurs, however, the
state transitions to "up" with the confidence bit cleared. This kind of
transition appears to be legal according to Microsoft docs, but we do
not handle it correctly. Because the confidence bit is clear, we don't
call `wacom_wac_finger_slot` and update userspace. This causes hung
touches that confuse userspace and interfere with pen arbitration.
This commit adds a special case to ignore the confidence flag if a contact
is reported as removed. This ensures we do not leave a hung touch if one
of these re-classification events occured. Ideally we'd have some way to
also let userspace know that the touch has been re-classified as a palm
and needs to be canceled, but that's not possible right now :)
Link: https://github.com/linuxwacom/input-wacom/issues/288
Fixes: 7fb0413baa7f (HID: wacom: Use "Confidence" flag to prevent reporting invalid contacts)
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hid/wacom_wac.c | 29 ++++++++++++++++++++++++++---
1 file changed, 26 insertions(+), 3 deletions(-)
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2424,6 +2424,24 @@ static void wacom_wac_finger_slot(struct
}
}
+static bool wacom_wac_slot_is_active(struct input_dev *dev, int key)
+{
+ struct input_mt *mt = dev->mt;
+ struct input_mt_slot *s;
+
+ if (!mt)
+ return false;
+
+ for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+ if (s->key == key &&
+ input_mt_get_value(s, ABS_MT_TRACKING_ID) >= 0) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
static void wacom_wac_finger_event(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage, __s32 value)
{
@@ -2466,9 +2484,14 @@ static void wacom_wac_finger_event(struc
if (usage->usage_index + 1 == field->report_count) {
- if (equivalent_usage == wacom_wac->hid_data.last_slot_field &&
- wacom_wac->hid_data.confidence)
- wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
+ if (equivalent_usage == wacom_wac->hid_data.last_slot_field) {
+ bool touch_removed = wacom_wac_slot_is_active(wacom_wac->touch_input,
+ wacom_wac->hid_data.id) && !wacom_wac->hid_data.tipswitch;
+
+ if (wacom_wac->hid_data.confidence || touch_removed) {
+ wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
+ }
+ }
}
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 018/186] HID: wacom: Avoid using stale array indicies to read contact count
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (16 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 017/186] HID: wacom: Ignore the confidence flag when a touch is removed Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 019/186] nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind() Greg Kroah-Hartman
` (168 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jason Gerecke, Ping Cheng, Jiri Kosina
From: Jason Gerecke <killertofu@gmail.com>
commit 20f3cf5f860f9f267a6a6e5642d3d0525edb1814 upstream.
If we ever see a touch report with contact count data we initialize
several variables used to read the contact count in the pre-report
phase. These variables are never reset if we process a report which
doesn't contain a contact count, however. This can cause the pre-
report function to trigger a read of arbitrary memory (e.g. NULL
if we're lucky) and potentially crash the driver.
This commit restores resetting of the variables back to default
"none" values that were used prior to the commit mentioned
below.
Link: https://github.com/linuxwacom/input-wacom/issues/276
Fixes: 003f50ab673c (HID: wacom: Update last_slot_field during pre_report phase)
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hid/wacom_wac.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2505,6 +2505,10 @@ static void wacom_wac_finger_pre_report(
hid_data->confidence = true;
+ hid_data->cc_report = 0;
+ hid_data->cc_index = -1;
+ hid_data->cc_value_index = -1;
+
for (i = 0; i < report->maxfield; i++) {
struct hid_field *field = report->field[i];
int j;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 019/186] nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (17 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 018/186] HID: wacom: Avoid using stale array indicies to read contact count Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 020/186] rtc: cmos: take rtc_lock while reading from CMOS Greg Kroah-Hartman
` (167 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Krzysztof Kozlowski, David S. Miller,
syzbot+7f23bcddf626e0593a39
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
commit dded08927ca3c31a5c37f8e7f95fe98770475dd4 upstream.
Syzbot detected a NULL pointer dereference of nfc_llcp_sock->dev pointer
(which is a 'struct nfc_dev *') with calls to llcp_sock_sendmsg() after
a failed llcp_sock_bind(). The message being sent is a SOCK_DGRAM.
KASAN report:
BUG: KASAN: null-ptr-deref in nfc_alloc_send_skb+0x2d/0xc0
Read of size 4 at addr 00000000000005c8 by task llcp_sock_nfc_a/899
CPU: 5 PID: 899 Comm: llcp_sock_nfc_a Not tainted 5.16.0-rc6-next-20211224-00001-gc6437fbf18b0 #125
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x45/0x59
? nfc_alloc_send_skb+0x2d/0xc0
__kasan_report.cold+0x117/0x11c
? mark_lock+0x480/0x4f0
? nfc_alloc_send_skb+0x2d/0xc0
kasan_report+0x38/0x50
nfc_alloc_send_skb+0x2d/0xc0
nfc_llcp_send_ui_frame+0x18c/0x2a0
? nfc_llcp_send_i_frame+0x230/0x230
? __local_bh_enable_ip+0x86/0xe0
? llcp_sock_connect+0x470/0x470
? llcp_sock_connect+0x470/0x470
sock_sendmsg+0x8e/0xa0
____sys_sendmsg+0x253/0x3f0
...
The issue was visible only with multiple simultaneous calls to bind() and
sendmsg(), which resulted in most of the bind() calls to fail. The
bind() was failing on checking if there is available WKS/SDP/SAP
(respective bit in 'struct nfc_llcp_local' fields). When there was no
available WKS/SDP/SAP, the bind returned error but the sendmsg() to such
socket was able to trigger mentioned NULL pointer dereference of
nfc_llcp_sock->dev.
The code looks simply racy and currently it protects several paths
against race with checks for (!nfc_llcp_sock->local) which is NULL-ified
in error paths of bind(). The llcp_sock_sendmsg() did not have such
check but called function nfc_llcp_send_ui_frame() had, although not
protected with lock_sock().
Therefore the race could look like (same socket is used all the time):
CPU0 CPU1
==== ====
llcp_sock_bind()
- lock_sock()
- success
- release_sock()
- return 0
llcp_sock_sendmsg()
- lock_sock()
- release_sock()
llcp_sock_bind(), same socket
- lock_sock()
- error
- nfc_llcp_send_ui_frame()
- if (!llcp_sock->local)
- llcp_sock->local = NULL
- nfc_put_device(dev)
- dereference llcp_sock->dev
- release_sock()
- return -ERRNO
The nfc_llcp_send_ui_frame() checked llcp_sock->local outside of the
lock, which is racy and ineffective check. Instead, its caller
llcp_sock_sendmsg(), should perform the check inside lock_sock().
Reported-and-tested-by: syzbot+7f23bcddf626e0593a39@syzkaller.appspotmail.com
Fixes: b874dec21d1c ("NFC: Implement LLCP connection less Tx path")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/nfc/llcp_sock.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -797,6 +797,11 @@ static int llcp_sock_sendmsg(struct sock
lock_sock(sk);
+ if (!llcp_sock->local) {
+ release_sock(sk);
+ return -ENODEV;
+ }
+
if (sk->sk_type == SOCK_DGRAM) {
DECLARE_SOCKADDR(struct sockaddr_nfc_llcp *, addr,
msg->msg_name);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 020/186] rtc: cmos: take rtc_lock while reading from CMOS
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (18 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 019/186] nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 021/186] media: flexcop-usb: fix control-message timeouts Greg Kroah-Hartman
` (166 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mateusz Jończyk,
Nobuhiro Iwamatsu, Alessandro Zummo, Alexandre Belloni
From: Mateusz Jończyk <mat.jonczyk@o2.pl>
commit 454f47ff464325223129b9b5b8d0b61946ec704d upstream.
Reading from the CMOS involves writing to the index register and then
reading from the data register. Therefore access to the CMOS has to be
serialized with rtc_lock. This invocation of CMOS_READ was not
serialized, which could cause trouble when other code is accessing CMOS
at the same time.
Use spin_lock_irq() like the rest of the function.
Nothing in kernel modifies the RTC_DM_BINARY bit, so there could be a
separate pair of spin_lock_irq() / spin_unlock_irq() before doing the
math.
Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211210200131.153887-2-mat.jonczyk@o2.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/rtc/rtc-cmos.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -421,7 +421,10 @@ static int cmos_set_alarm(struct device
min = t->time.tm_min;
sec = t->time.tm_sec;
+ spin_lock_irq(&rtc_lock);
rtc_control = CMOS_READ(RTC_CONTROL);
+ spin_unlock_irq(&rtc_lock);
+
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
/* Writing 0xff means "don't care" or "match all". */
mon = (mon <= 12) ? bin2bcd(mon) : 0xff;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 021/186] media: flexcop-usb: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (19 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 020/186] rtc: cmos: take rtc_lock while reading from CMOS Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 022/186] media: mceusb: " Greg Kroah-Hartman
` (165 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit cd1798a387825cc4a51282f5a611ad05bb1ad75f upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Note that the driver was multiplying some of the timeout values with HZ
twice resulting in 3000-second timeouts with HZ=1000.
Also note that two of the timeout defines are currently unused.
Fixes: 2154be651b90 ("[media] redrat3: new rc-core IR transceiver device driver")
Cc: stable@vger.kernel.org # 3.0
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/b2c2/flexcop-usb.c | 10 +++++-----
drivers/media/usb/b2c2/flexcop-usb.h | 12 ++++++------
2 files changed, 11 insertions(+), 11 deletions(-)
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -86,7 +86,7 @@ static int flexcop_usb_readwrite_dw(stru
0,
fc_usb->data,
sizeof(u32),
- B2C2_WAIT_FOR_OPERATION_RDW * HZ);
+ B2C2_WAIT_FOR_OPERATION_RDW);
if (ret != sizeof(u32)) {
err("error while %s dword from %d (%d).", read ? "reading" :
@@ -154,7 +154,7 @@ static int flexcop_usb_v8_memory_req(str
wIndex,
fc_usb->data,
buflen,
- nWaitTime * HZ);
+ nWaitTime);
if (ret != buflen)
ret = -EIO;
@@ -248,13 +248,13 @@ static int flexcop_usb_i2c_req(struct fl
/* DKT 020208 - add this to support special case of DiSEqC */
case USB_FUNC_I2C_CHECKWRITE:
pipe = B2C2_USB_CTRL_PIPE_OUT;
- nWaitTime = 2;
+ nWaitTime = 2000;
request_type |= USB_DIR_OUT;
break;
case USB_FUNC_I2C_READ:
case USB_FUNC_I2C_REPEATREAD:
pipe = B2C2_USB_CTRL_PIPE_IN;
- nWaitTime = 2;
+ nWaitTime = 2000;
request_type |= USB_DIR_IN;
break;
default:
@@ -281,7 +281,7 @@ static int flexcop_usb_i2c_req(struct fl
wIndex,
fc_usb->data,
buflen,
- nWaitTime * HZ);
+ nWaitTime);
if (ret != buflen)
ret = -EIO;
--- a/drivers/media/usb/b2c2/flexcop-usb.h
+++ b/drivers/media/usb/b2c2/flexcop-usb.h
@@ -91,13 +91,13 @@ typedef enum {
UTILITY_SRAM_TESTVERIFY = 0x16,
} flexcop_usb_utility_function_t;
-#define B2C2_WAIT_FOR_OPERATION_RW (1*HZ)
-#define B2C2_WAIT_FOR_OPERATION_RDW (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_WDW (1*HZ)
+#define B2C2_WAIT_FOR_OPERATION_RW 1000
+#define B2C2_WAIT_FOR_OPERATION_RDW 3000
+#define B2C2_WAIT_FOR_OPERATION_WDW 1000
-#define B2C2_WAIT_FOR_OPERATION_V8READ (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_V8WRITE (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_V8FLASH (3*HZ)
+#define B2C2_WAIT_FOR_OPERATION_V8READ 3000
+#define B2C2_WAIT_FOR_OPERATION_V8WRITE 3000
+#define B2C2_WAIT_FOR_OPERATION_V8FLASH 3000
typedef enum {
V8_MEMORY_PAGE_DVB_CI = 0x20,
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 022/186] media: mceusb: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (20 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 021/186] media: flexcop-usb: fix control-message timeouts Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 023/186] media: em28xx: " Greg Kroah-Hartman
` (164 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit 16394e998cbb050730536bdf7e89f5a70efbd974 upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: 66e89522aff7 ("V4L/DVB: IR: add mceusb IR receiver driver")
Cc: stable@vger.kernel.org # 2.6.36
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/rc/mceusb.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1124,7 +1124,7 @@ static void mceusb_gen1_init(struct mceu
*/
ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
- data, USB_CTRL_MSG_SZ, HZ * 3);
+ data, USB_CTRL_MSG_SZ, 3000);
dev_dbg(dev, "set address - ret = %d", ret);
dev_dbg(dev, "set address - data[0] = %d, data[1] = %d",
data[0], data[1]);
@@ -1132,20 +1132,20 @@ static void mceusb_gen1_init(struct mceu
/* set feature: bit rate 38400 bps */
ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
- 0xc04e, 0x0000, NULL, 0, HZ * 3);
+ 0xc04e, 0x0000, NULL, 0, 3000);
dev_dbg(dev, "set feature - ret = %d", ret);
/* bRequest 4: set char length to 8 bits */
ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
4, USB_TYPE_VENDOR,
- 0x0808, 0x0000, NULL, 0, HZ * 3);
+ 0x0808, 0x0000, NULL, 0, 3000);
dev_dbg(dev, "set char length - retB = %d", ret);
/* bRequest 2: set handshaking to use DTR/DSR */
ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
2, USB_TYPE_VENDOR,
- 0x0000, 0x0100, NULL, 0, HZ * 3);
+ 0x0000, 0x0100, NULL, 0, 3000);
dev_dbg(dev, "set handshake - retC = %d", ret);
/* device resume */
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 023/186] media: em28xx: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (21 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 022/186] media: mceusb: " Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 024/186] media: cpia2: " Greg Kroah-Hartman
` (163 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit d9b7e8df3aa9b8c10708aab60e72e79ac08237e4 upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: a6c2ba283565 ("[PATCH] v4l: 716: support for em28xx board family")
Cc: stable@vger.kernel.org # 2.6.16
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/em28xx/em28xx-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -94,7 +94,7 @@ int em28xx_read_reg_req_len(struct em28x
mutex_lock(&dev->ctrl_urb_lock);
ret = usb_control_msg(udev, pipe, req,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0x0000, reg, dev->urb_buf, len, HZ);
+ 0x0000, reg, dev->urb_buf, len, 1000);
if (ret < 0) {
em28xx_regdbg("(pipe 0x%08x): IN: %02x %02x %02x %02x %02x %02x %02x %02x failed with error %i\n",
pipe, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
@@ -162,7 +162,7 @@ int em28xx_write_regs_req(struct em28xx
memcpy(dev->urb_buf, buf, len);
ret = usb_control_msg(udev, pipe, req,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0x0000, reg, dev->urb_buf, len, HZ);
+ 0x0000, reg, dev->urb_buf, len, 1000);
mutex_unlock(&dev->ctrl_urb_lock);
if (ret < 0) {
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 024/186] media: cpia2: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (22 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 023/186] media: em28xx: " Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 025/186] media: s2255: " Greg Kroah-Hartman
` (162 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit 10729be03327f53258cb196362015ad5c6eabe02 upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: ab33d5071de7 ("V4L/DVB (3376): Add cpia2 camera support")
Cc: stable@vger.kernel.org # 2.6.17
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/cpia2/cpia2_usb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/media/usb/cpia2/cpia2_usb.c
+++ b/drivers/media/usb/cpia2/cpia2_usb.c
@@ -559,7 +559,7 @@ static int write_packet(struct usb_devic
0, /* index */
buf, /* buffer */
size,
- HZ);
+ 1000);
kfree(buf);
return ret;
@@ -591,7 +591,7 @@ static int read_packet(struct usb_device
0, /* index */
buf, /* buffer */
size,
- HZ);
+ 1000);
if (ret >= 0)
memcpy(registers, buf, size);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 025/186] media: s2255: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (23 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 024/186] media: cpia2: " Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 026/186] media: dib0700: fix undefined behavior in tuner shutdown Greg Kroah-Hartman
` (161 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit f71d272ad4e354097020a4e6b1dc6e4b59feb50f upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Use the common control-message timeout define for the five-second
timeouts.
Fixes: 38f993ad8b1f ("V4L/DVB (8125): This driver adds support for the Sensoray 2255 devices.")
Cc: stable@vger.kernel.org # 2.6.27
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/s2255/s2255drv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/media/usb/s2255/s2255drv.c
+++ b/drivers/media/usb/s2255/s2255drv.c
@@ -1911,7 +1911,7 @@ static long s2255_vendor_req(struct s225
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
USB_DIR_IN,
Value, Index, buf,
- TransferBufferLength, HZ * 5);
+ TransferBufferLength, USB_CTRL_SET_TIMEOUT);
if (r >= 0)
memcpy(TransferBuffer, buf, TransferBufferLength);
@@ -1920,7 +1920,7 @@ static long s2255_vendor_req(struct s225
r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
Value, Index, buf,
- TransferBufferLength, HZ * 5);
+ TransferBufferLength, USB_CTRL_SET_TIMEOUT);
}
kfree(buf);
return r;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 026/186] media: dib0700: fix undefined behavior in tuner shutdown
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (24 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 025/186] media: s2255: " Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 027/186] media: redrat3: fix control-message timeouts Greg Kroah-Hartman
` (160 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Kuron, Mauro Carvalho Chehab
From: Michael Kuron <michael.kuron@gmail.com>
commit f7b77ebe6d2f49c7747b2d619586d1aa33f9ea91 upstream.
This fixes a problem where closing the tuner would leave it in a state
where it would not tune to any channel when reopened. This problem was
discovered as part of https://github.com/hselasky/webcamd/issues/16.
Since adap->id is 0 or 1, this bit-shift overflows, which is undefined
behavior. The driver still worked in practice as the overflow would in
most environments result in 0, which rendered the line a no-op. When
running the driver as part of webcamd however, the overflow could lead
to 0xff due to optimizations by the compiler, which would, in the end,
improperly shut down the tuner.
The bug is a regression introduced in the commit referenced below. The
present patch causes identical behavior to before that commit for
adap->id equal to 0 or 1. The driver does not contain support for
dib0700 devices with more adapters, assuming such even exist.
Tests have been performed with the Xbox One Digital TV Tuner on amd64.
Not all dib0700 devices are expected to be affected by the regression;
this code path is only taken by those with incorrect endpoint numbers.
Link: https://lore.kernel.org/linux-media/1d2fc36d94ced6f67c7cc21dcc469d5e5bdd8201.1632689033.git.mchehab+huawei@kernel.org
Cc: stable@vger.kernel.org
Fixes: 7757ddda6f4f ("[media] DiB0700: add function to change I2C-speed")
Signed-off-by: Michael Kuron <michael.kuron@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/dvb-usb/dib0700_core.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/media/usb/dvb-usb/dib0700_core.c
+++ b/drivers/media/usb/dvb-usb/dib0700_core.c
@@ -619,8 +619,6 @@ int dib0700_streaming_ctrl(struct dvb_us
deb_info("the endpoint number (%i) is not correct, use the adapter id instead", adap->fe_adap[0].stream.props.endpoint);
if (onoff)
st->channel_state |= 1 << (adap->id);
- else
- st->channel_state |= 1 << ~(adap->id);
} else {
if (onoff)
st->channel_state |= 1 << (adap->fe_adap[0].stream.props.endpoint-2);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 027/186] media: redrat3: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (25 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 026/186] media: dib0700: fix undefined behavior in tuner shutdown Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 028/186] media: pvrusb2: " Greg Kroah-Hartman
` (159 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit 2adc965c8bfa224e11ecccf9c92fd458c4236428 upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: 2154be651b90 ("[media] redrat3: new rc-core IR transceiver device driver")
Cc: stable@vger.kernel.org # 3.0
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/rc/redrat3.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
--- a/drivers/media/rc/redrat3.c
+++ b/drivers/media/rc/redrat3.c
@@ -415,7 +415,7 @@ static int redrat3_send_cmd(int cmd, str
udev = rr3->udev;
res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0x0000, 0x0000, data, sizeof(u8), HZ * 10);
+ 0x0000, 0x0000, data, sizeof(u8), 10000);
if (res < 0) {
dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d",
@@ -491,7 +491,7 @@ static u32 redrat3_get_timeout(struct re
pipe = usb_rcvctrlpipe(rr3->udev, 0);
ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5);
+ RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, 5000);
if (ret != len)
dev_warn(rr3->dev, "Failed to read timeout from hardware\n");
else {
@@ -521,7 +521,7 @@ static int redrat3_set_timeout(struct rc
ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
RR3_IR_IO_SIG_TIMEOUT, 0, timeout, sizeof(*timeout),
- HZ * 25);
+ 25000);
dev_dbg(dev, "set ir parm timeout %d ret 0x%02x\n",
be32_to_cpu(*timeout), ret);
@@ -553,32 +553,32 @@ static void redrat3_reset(struct redrat3
*val = 0x01;
rc = usb_control_msg(udev, rxpipe, RR3_RESET,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25);
+ RR3_CPUCS_REG_ADDR, 0, val, len, 25000);
dev_dbg(dev, "reset returned 0x%02x\n", rc);
*val = length_fuzz;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25);
+ RR3_IR_IO_LENGTH_FUZZ, 0, val, len, 25000);
dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc);
*val = (65536 - (minimum_pause * 2000)) / 256;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_MIN_PAUSE, 0, val, len, HZ * 25);
+ RR3_IR_IO_MIN_PAUSE, 0, val, len, 25000);
dev_dbg(dev, "set ir parm min pause %d rc 0x%02x\n", *val, rc);
*val = periods_measure_carrier;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_PERIODS_MF, 0, val, len, HZ * 25);
+ RR3_IR_IO_PERIODS_MF, 0, val, len, 25000);
dev_dbg(dev, "set ir parm periods measure carrier %d rc 0x%02x", *val,
rc);
*val = RR3_DRIVER_MAXLENS;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25);
+ RR3_IR_IO_MAX_LENGTHS, 0, val, len, 25000);
dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc);
kfree(val);
@@ -596,7 +596,7 @@ static void redrat3_get_firmware_rev(str
rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0),
RR3_FW_VERSION,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5);
+ 0, 0, buffer, RR3_FW_VERSION_LEN, 5000);
if (rc >= 0)
dev_info(rr3->dev, "Firmware rev: %s", buffer);
@@ -836,14 +836,14 @@ static int redrat3_transmit_ir(struct rc
pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress);
ret = usb_bulk_msg(rr3->udev, pipe, irdata,
- sendbuf_len, &ret_len, 10 * HZ);
+ sendbuf_len, &ret_len, 10000);
dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret);
/* now tell the hardware to transmit what we sent it */
pipe = usb_rcvctrlpipe(rr3->udev, 0);
ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0, 0, irdata, 2, HZ * 10);
+ 0, 0, irdata, 2, 10000);
if (ret < 0)
dev_err(dev, "Error: control msg send failed, rc %d\n", ret);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 028/186] media: pvrusb2: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (26 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 027/186] media: redrat3: fix control-message timeouts Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 029/186] media: stk1160: " Greg Kroah-Hartman
` (158 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit b82bf9b9dc305d7d3d93eab106d70dbf2171b43e upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: d855497edbfb ("V4L/DVB (4228a): pvrusb2 to kernel 2.6.18")
Cc: stable@vger.kernel.org # 2.6.18
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -1476,7 +1476,7 @@ static int pvr2_upload_firmware1(struct
for (address = 0; address < fwsize; address += 0x800) {
memcpy(fw_ptr, fw_entry->data + address, 0x800);
ret += usb_control_msg(hdw->usb_dev, pipe, 0xa0, 0x40, address,
- 0, fw_ptr, 0x800, HZ);
+ 0, fw_ptr, 0x800, 1000);
}
trace_firmware("Upload done, releasing device's CPU");
@@ -1614,7 +1614,7 @@ int pvr2_upload_firmware2(struct pvr2_hd
((u32 *)fw_ptr)[icnt] = swab32(((u32 *)fw_ptr)[icnt]);
ret |= usb_bulk_msg(hdw->usb_dev, pipe, fw_ptr,bcnt,
- &actual_length, HZ);
+ &actual_length, 1000);
ret |= (actual_length != bcnt);
if (ret) break;
fw_done += bcnt;
@@ -3433,7 +3433,7 @@ void pvr2_hdw_cpufw_set_enabled(struct p
0xa0,0xc0,
address,0,
hdw->fw_buffer+address,
- 0x800,HZ);
+ 0x800,1000);
if (ret < 0) break;
}
@@ -3961,7 +3961,7 @@ void pvr2_hdw_cpureset_assert(struct pvr
/* Write the CPUCS register on the 8051. The lsb of the register
is the reset bit; a 1 asserts reset while a 0 clears it. */
pipe = usb_sndctrlpipe(hdw->usb_dev, 0);
- ret = usb_control_msg(hdw->usb_dev,pipe,0xa0,0x40,0xe600,0,da,1,HZ);
+ ret = usb_control_msg(hdw->usb_dev,pipe,0xa0,0x40,0xe600,0,da,1,1000);
if (ret < 0) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"cpureset_assert(%d) error=%d",val,ret);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 029/186] media: stk1160: fix control-message timeouts
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (27 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 028/186] media: pvrusb2: " Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 030/186] can: softing_cs: softingcs_probe(): fix memleak on registration failure Greg Kroah-Hartman
` (157 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab
From: Johan Hovold <johan@kernel.org>
commit 6aa6e70cdb5b863a57bad61310bf89b6617a5d2d upstream.
USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.
Fixes: 9cb2173e6ea8 ("[media] media: Add stk1160 new driver (easycap replacement)")
Cc: stable@vger.kernel.org # 3.7
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/stk1160/stk1160-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/media/usb/stk1160/stk1160-core.c
+++ b/drivers/media/usb/stk1160/stk1160-core.c
@@ -75,7 +75,7 @@ int stk1160_read_reg(struct stk1160 *dev
return -ENOMEM;
ret = usb_control_msg(dev->udev, pipe, 0x00,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0x00, reg, buf, sizeof(u8), HZ);
+ 0x00, reg, buf, sizeof(u8), 1000);
if (ret < 0) {
stk1160_err("read failed on reg 0x%x (%d)\n",
reg, ret);
@@ -95,7 +95,7 @@ int stk1160_write_reg(struct stk1160 *de
ret = usb_control_msg(dev->udev, pipe, 0x01,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, reg, NULL, 0, HZ);
+ value, reg, NULL, 0, 1000);
if (ret < 0) {
stk1160_err("write failed on reg 0x%x (%d)\n",
reg, ret);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 030/186] can: softing_cs: softingcs_probe(): fix memleak on registration failure
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (28 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 029/186] media: stk1160: " Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 031/186] shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode Greg Kroah-Hartman
` (156 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Johan Hovold, Marc Kleine-Budde
From: Johan Hovold <johan@kernel.org>
commit ced4913efb0acc844ed65cc01d091a85d83a2082 upstream.
In case device registration fails during probe, the driver state and
the embedded platform device structure needs to be freed using
platform_device_put() to properly free all resources (e.g. the device
name).
Fixes: 0a0b7a5f7a04 ("can: add driver for Softing card")
Link: https://lore.kernel.org/all/20211222104843.6105-1-johan@kernel.org
Cc: stable@vger.kernel.org # 2.6.38
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/can/softing/softing_cs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/can/softing/softing_cs.c
+++ b/drivers/net/can/softing/softing_cs.c
@@ -304,7 +304,7 @@ static int softingcs_probe(struct pcmcia
return 0;
platform_failed:
- kfree(dev);
+ platform_device_put(pdev);
mem_failed:
pcmcia_bad:
pcmcia_failed:
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 031/186] shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (29 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 030/186] can: softing_cs: softingcs_probe(): fix memleak on registration failure Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 032/186] PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller Greg Kroah-Hartman
` (155 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Gang Li, Muchun Song,
Kirill A. Shutemov, Hugh Dickins, Andrew Morton, Linus Torvalds
From: Gang Li <ligang.bdlg@bytedance.com>
commit 62c9827cbb996c2c04f615ecd783ce28bcea894b upstream.
Fix a data race in commit 779750d20b93 ("shmem: split huge pages beyond
i_size under memory pressure").
Here are call traces causing race:
Call Trace 1:
shmem_unused_huge_shrink+0x3ae/0x410
? __list_lru_walk_one.isra.5+0x33/0x160
super_cache_scan+0x17c/0x190
shrink_slab.part.55+0x1ef/0x3f0
shrink_node+0x10e/0x330
kswapd+0x380/0x740
kthread+0xfc/0x130
? mem_cgroup_shrink_node+0x170/0x170
? kthread_create_on_node+0x70/0x70
ret_from_fork+0x1f/0x30
Call Trace 2:
shmem_evict_inode+0xd8/0x190
evict+0xbe/0x1c0
do_unlinkat+0x137/0x330
do_syscall_64+0x76/0x120
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
A simple explanation:
Image there are 3 items in the local list (@list). In the first
traversal, A is not deleted from @list.
1) A->B->C
^
|
pos (leave)
In the second traversal, B is deleted from @list. Concurrently, A is
deleted from @list through shmem_evict_inode() since last reference
counter of inode is dropped by other thread. Then the @list is corrupted.
2) A->B->C
^ ^
| |
evict pos (drop)
We should make sure the inode is either on the global list or deleted from
any local list before iput().
Fixed by moving inodes back to global list before we put them.
[akpm@linux-foundation.org: coding style fixes]
Link: https://lkml.kernel.org/r/20211125064502.99983-1-ligang.bdlg@bytedance.com
Fixes: 779750d20b93 ("shmem: split huge pages beyond i_size under memory pressure")
Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.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>
---
mm/shmem.c | 37 +++++++++++++++++++++----------------
1 file changed, 21 insertions(+), 16 deletions(-)
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -450,7 +450,7 @@ static unsigned long shmem_unused_huge_s
struct shmem_inode_info *info;
struct page *page;
unsigned long batch = sc ? sc->nr_to_scan : 128;
- int removed = 0, split = 0;
+ int split = 0;
if (list_empty(&sbinfo->shrinklist))
return SHRINK_STOP;
@@ -465,7 +465,6 @@ static unsigned long shmem_unused_huge_s
/* inode is about to be evicted */
if (!inode) {
list_del_init(&info->shrinklist);
- removed++;
goto next;
}
@@ -473,12 +472,12 @@ static unsigned long shmem_unused_huge_s
if (round_up(inode->i_size, PAGE_SIZE) ==
round_up(inode->i_size, HPAGE_PMD_SIZE)) {
list_move(&info->shrinklist, &to_remove);
- removed++;
goto next;
}
list_move(&info->shrinklist, &list);
next:
+ sbinfo->shrinklist_len--;
if (!--batch)
break;
}
@@ -498,7 +497,7 @@ next:
inode = &info->vfs_inode;
if (nr_to_split && split >= nr_to_split)
- goto leave;
+ goto move_back;
page = find_get_page(inode->i_mapping,
(inode->i_size & HPAGE_PMD_MASK) >> PAGE_SHIFT);
@@ -512,38 +511,44 @@ next:
}
/*
- * Leave the inode on the list if we failed to lock
- * the page at this time.
+ * Move the inode on the list back to shrinklist if we failed
+ * to lock the page at this time.
*
* Waiting for the lock may lead to deadlock in the
* reclaim path.
*/
if (!trylock_page(page)) {
put_page(page);
- goto leave;
+ goto move_back;
}
ret = split_huge_page(page);
unlock_page(page);
put_page(page);
- /* If split failed leave the inode on the list */
+ /* If split failed move the inode on the list back to shrinklist */
if (ret)
- goto leave;
+ goto move_back;
split++;
drop:
list_del_init(&info->shrinklist);
- removed++;
-leave:
+ goto put;
+move_back:
+ /*
+ * Make sure the inode is either on the global list or deleted
+ * from any local list before iput() since it could be deleted
+ * in another thread once we put the inode (then the local list
+ * is corrupted).
+ */
+ spin_lock(&sbinfo->shrinklist_lock);
+ list_move(&info->shrinklist, &sbinfo->shrinklist);
+ sbinfo->shrinklist_len++;
+ spin_unlock(&sbinfo->shrinklist_lock);
+put:
iput(inode);
}
- spin_lock(&sbinfo->shrinklist_lock);
- list_splice_tail(&list, &sbinfo->shrinklist);
- sbinfo->shrinklist_len -= removed;
- spin_unlock(&sbinfo->shrinklist_lock);
-
return split;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 032/186] PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (30 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 031/186] shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 033/186] Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails Greg Kroah-Hartman
` (154 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sam Bingner, Yifeng Li,
Bjorn Helgaas, Krzysztof Wilczyński
From: Yifeng Li <tomli@tomli.me>
commit e445375882883f69018aa669b67cbb37ec873406 upstream.
Like other SATA controller chips in the Marvell 88SE91xx series, the
Marvell 88SE9125 has the same DMA requester ID hardware bug that prevents
it from working under IOMMU. Add it to the list of devices that need the
quirk.
Without this patch, device initialization fails with DMA errors:
ata8: softreset failed (1st FIS failed)
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Write NO_PASID] Request device [03:00.1] fault addr 0xfffc0000 [fault reason 0x02] Present bit in context entry is clear
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Read NO_PASID] Request device [03:00.1] fault addr 0xfffc0000 [fault reason 0x02] Present bit in context entry is clear
After applying the patch, the controller can be successfully initialized:
ata8: SATA link up 1.5 Gbps (SStatus 113 SControl 330)
ata8.00: ATAPI: PIONEER BD-RW BDR-207M, 1.21, max UDMA/100
ata8.00: configured for UDMA/100
scsi 7:0:0:0: CD-ROM PIONEER BD-RW BDR-207M 1.21 PQ: 0 ANSI: 5
Link: https://lore.kernel.org/r/YahpKVR+McJVDdkD@work
Reported-by: Sam Bingner <sam@bingner.com>
Tested-by: Sam Bingner <sam@bingner.com>
Tested-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/pci/quirks.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4004,6 +4004,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_M
quirk_dma_func1_alias);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9123,
quirk_dma_func1_alias);
+/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c136 */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9125,
+ quirk_dma_func1_alias);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9128,
quirk_dma_func1_alias);
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 033/186] Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (31 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 032/186] PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 034/186] clk: bcm-2835: Pick the closest clock rate Greg Kroah-Hartman
` (153 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wang Hai,
Marcel Holtmann, Sasha Levin
From: Wang Hai <wanghai38@huawei.com>
[ Upstream commit 2a7ca7459d905febf519163bd9e3eed894de6bb7 ]
I got a kernel BUG report when doing fault injection test:
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:45!
...
RIP: 0010:__list_del_entry_valid.cold+0x12/0x4d
...
Call Trace:
proto_unregister+0x83/0x220
cmtp_cleanup_sockets+0x37/0x40 [cmtp]
cmtp_exit+0xe/0x1f [cmtp]
do_syscall_64+0x35/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
If cmtp_init_sockets() in cmtp_init() fails, cmtp_init() still returns
success. This will cause a kernel bug when accessing uncreated ctmp
related data when the module exits.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/cmtp/core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 9873684a9d8ff..4764ed73f33bf 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -499,9 +499,7 @@ static int __init cmtp_init(void)
{
BT_INFO("CMTP (CAPI Emulation) ver %s", VERSION);
- cmtp_init_sockets();
-
- return 0;
+ return cmtp_init_sockets();
}
static void __exit cmtp_exit(void)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 034/186] clk: bcm-2835: Pick the closest clock rate
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (32 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 033/186] Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 035/186] clk: bcm-2835: Remove rounding up the dividers Greg Kroah-Hartman
` (152 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Ripard, Stephen Boyd,
Nicolas Saenz Julienne, Michael Stapelberg, Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit 5517357a4733d7cf7c17fc79d0530cfa47add372 ]
The driver currently tries to pick the closest rate that is lower than
the rate being requested.
This causes an issue with clk_set_min_rate() since it actively checks
for the rounded rate to be above the minimum that was just set.
Let's change the logic a bit to pick the closest rate to the requested
rate, no matter if it's actually higher or lower.
Fixes: 6d18b8adbe67 ("clk: bcm2835: Support for clock parent selection")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Nicolas Saenz Julienne <nsaenz@kernel.org> # boot and basic functionality
Tested-by: Michael Stapelberg <michael@stapelberg.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210922125419.4125779-2-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/bcm/clk-bcm2835.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 98295b9703178..d6cd1cc3f8e4d 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1233,7 +1233,7 @@ static int bcm2835_clock_determine_rate(struct clk_hw *hw,
rate = bcm2835_clock_choose_div_and_prate(hw, i, req->rate,
&div, &prate,
&avgrate);
- if (rate > best_rate && rate <= req->rate) {
+ if (abs(req->rate - rate) < abs(req->rate - best_rate)) {
best_parent = parent;
best_prate = prate;
best_rate = rate;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 035/186] clk: bcm-2835: Remove rounding up the dividers
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (33 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 034/186] clk: bcm-2835: Pick the closest clock rate Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 036/186] wcn36xx: Indicate beacon not connection loss on MISSED_BEACON_IND Greg Kroah-Hartman
` (151 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Ripard, Stephen Boyd,
Nicolas Saenz Julienne, Michael Stapelberg, Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit 8ca011ef4af48a7af7b15afd8a4a44039dd04cea ]
The driver, once it found a divider, tries to round it up by increasing
the least significant bit of the fractional part by one when the
round_up argument is set and there's a remainder.
However, since it increases the divider it will actually reduce the
clock rate below what we were asking for, leading to issues with
clk_set_min_rate() that will complain that our rounded clock rate is
below the minimum of the rate.
Since the dividers are fairly precise already, let's remove that part so
that we can have clk_set_min_rate() working.
This is effectively a revert of 9c95b32ca093 ("clk: bcm2835: add a round
up ability to the clock divisor").
Fixes: 9c95b32ca093 ("clk: bcm2835: add a round up ability to the clock divisor")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Nicolas Saenz Julienne <nsaenz@kernel.org> # boot and basic functionality
Tested-by: Michael Stapelberg <michael@stapelberg.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210922125419.4125779-3-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/bcm/clk-bcm2835.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index d6cd1cc3f8e4d..8ccd72cc66bab 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -949,8 +949,7 @@ static int bcm2835_clock_is_on(struct clk_hw *hw)
static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
unsigned long rate,
- unsigned long parent_rate,
- bool round_up)
+ unsigned long parent_rate)
{
struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
const struct bcm2835_clock_data *data = clock->data;
@@ -962,10 +961,6 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
rem = do_div(temp, rate);
div = temp;
-
- /* Round up and mask off the unused bits */
- if (round_up && ((div & unused_frac_mask) != 0 || rem != 0))
- div += unused_frac_mask + 1;
div &= ~unused_frac_mask;
/* different clamping limits apply for a mash clock */
@@ -1096,7 +1091,7 @@ static int bcm2835_clock_set_rate(struct clk_hw *hw,
struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
struct bcm2835_cprman *cprman = clock->cprman;
const struct bcm2835_clock_data *data = clock->data;
- u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate, false);
+ u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate);
u32 ctl;
spin_lock(&cprman->regs_lock);
@@ -1147,7 +1142,7 @@ static unsigned long bcm2835_clock_choose_div_and_prate(struct clk_hw *hw,
if (!(BIT(parent_idx) & data->set_rate_parent)) {
*prate = clk_hw_get_rate(parent);
- *div = bcm2835_clock_choose_div(hw, rate, *prate, true);
+ *div = bcm2835_clock_choose_div(hw, rate, *prate);
*avgrate = bcm2835_clock_rate_from_divisor(clock, *prate, *div);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 036/186] wcn36xx: Indicate beacon not connection loss on MISSED_BEACON_IND
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (34 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 035/186] clk: bcm-2835: Remove rounding up the dividers Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 037/186] media: em28xx: fix memory leak in em28xx_init_dev Greg Kroah-Hartman
` (150 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bryan ODonoghue, Kalle Valo, Sasha Levin
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
[ Upstream commit 588b45c88ae130fe373a8c50edaf54735c3f4fe3 ]
Firmware can trigger a missed beacon indication, this is not the same as a
lost signal.
Flag to Linux the missed beacon and let the WiFi stack decide for itself if
the link is up or down by sending its own probe to determine this.
We should only be signalling the link is lost when the firmware indicates
Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027232529.657764-1-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/wcn36xx/smd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index c5b5fbcd2066c..3073c5af7dae8 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -2053,7 +2053,7 @@ static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
tmp->bss_index);
vif = wcn36xx_priv_to_vif(tmp);
- ieee80211_connection_loss(vif);
+ ieee80211_beacon_loss(vif);
}
return 0;
}
@@ -2068,7 +2068,7 @@ static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
rsp->bss_index);
vif = wcn36xx_priv_to_vif(tmp);
- ieee80211_connection_loss(vif);
+ ieee80211_beacon_loss(vif);
return 0;
}
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 037/186] media: em28xx: fix memory leak in em28xx_init_dev
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (35 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 036/186] wcn36xx: Indicate beacon not connection loss on MISSED_BEACON_IND Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 038/186] Bluetooth: stop proccessing malicious adv data Greg Kroah-Hartman
` (149 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Dongliang Mu,
syzkaller, Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Dongliang Mu <mudongliangabcd@gmail.com>
[ Upstream commit 22be5a10d0b24eec9e45decd15d7e6112b25f080 ]
In the em28xx_init_rev, if em28xx_audio_setup fails, this function fails
to deallocate the media_dev allocated in the em28xx_media_device_init.
Fix this by adding em28xx_unregister_media_device to free media_dev.
BTW, this patch is tested in my local syzkaller instance, and it can
prevent the memory leak from occurring again.
CC: Pavel Skripkin <paskripkin@gmail.com>
Fixes: 37ecc7b1278f ("[media] em28xx: add media controller support")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/em28xx/em28xx-cards.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 9747e23aad271..b736c027a0bd0 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -3386,8 +3386,10 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
if (dev->is_audio_only) {
retval = em28xx_audio_setup(dev);
- if (retval)
- return -ENODEV;
+ if (retval) {
+ retval = -ENODEV;
+ goto err_deinit_media;
+ }
em28xx_init_extension(dev);
return 0;
@@ -3417,7 +3419,7 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
dev_err(&dev->intf->dev,
"%s: em28xx_i2c_register bus 0 - error [%d]!\n",
__func__, retval);
- return retval;
+ goto err_deinit_media;
}
/* register i2c bus 1 */
@@ -3433,9 +3435,7 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
"%s: em28xx_i2c_register bus 1 - error [%d]!\n",
__func__, retval);
- em28xx_i2c_unregister(dev, 0);
-
- return retval;
+ goto err_unreg_i2c;
}
}
@@ -3443,6 +3443,12 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
em28xx_card_setup(dev);
return 0;
+
+err_unreg_i2c:
+ em28xx_i2c_unregister(dev, 0);
+err_deinit_media:
+ em28xx_unregister_media_device(dev);
+ return retval;
}
/* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 038/186] Bluetooth: stop proccessing malicious adv data
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (36 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 037/186] media: em28xx: fix memory leak in em28xx_init_dev Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 039/186] media: dmxdev: fix UAF when dvb_register_device() fails Greg Kroah-Hartman
` (148 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Marcel Holtmann,
Sasha Levin, syzbot+e3fcb9c4f3c2a931dc40
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit 3a56ef719f0b9682afb8a86d64b2399e36faa4e6 ]
Syzbot reported slab-out-of-bounds read in hci_le_adv_report_evt(). The
problem was in missing validaion check.
We should check if data is not malicious and we can read next data block.
If we won't check ptr validness, code can read a way beyond skb->end and
it can cause problems, of course.
Fixes: e95beb414168 ("Bluetooth: hci_le_adv_report_evt code refactoring")
Reported-and-tested-by: syzbot+e3fcb9c4f3c2a931dc40@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/hci_event.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 5186f199d892c..eca596a56f46b 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4967,7 +4967,8 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
struct hci_ev_le_advertising_info *ev = ptr;
s8 rssi;
- if (ev->length <= HCI_MAX_AD_LENGTH) {
+ if (ev->length <= HCI_MAX_AD_LENGTH &&
+ ev->data + ev->length <= skb_tail_pointer(skb)) {
rssi = ev->data[ev->length];
process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
ev->bdaddr_type, NULL, 0, rssi,
@@ -4977,6 +4978,11 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
}
ptr += sizeof(*ev) + ev->length + 1;
+
+ if (ptr > (void *) skb_tail_pointer(skb) - sizeof(*ev)) {
+ bt_dev_err(hdev, "Malicious advertising data. Stopping processing");
+ break;
+ }
}
hci_dev_unlock(hdev);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 039/186] media: dmxdev: fix UAF when dvb_register_device() fails
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (37 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 038/186] Bluetooth: stop proccessing malicious adv data Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 040/186] crypto: qce - fix uaf on qce_ahash_register_one Greg Kroah-Hartman
` (147 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wang Hai,
Mauro Carvalho Chehab, Sasha Levin
From: Wang Hai <wanghai38@huawei.com>
[ Upstream commit ab599eb11882f834951c436cc080c3455ba32b9b ]
I got a use-after-free report:
dvbdev: dvb_register_device: failed to create device dvb1.dvr0 (-12)
...
==================================================================
BUG: KASAN: use-after-free in dvb_dmxdev_release+0xce/0x2f0
...
Call Trace:
dump_stack_lvl+0x6c/0x8b
print_address_description.constprop.0+0x48/0x70
kasan_report.cold+0x82/0xdb
__asan_load4+0x6b/0x90
dvb_dmxdev_release+0xce/0x2f0
...
Allocated by task 7666:
kasan_save_stack+0x23/0x50
__kasan_kmalloc+0x83/0xa0
kmem_cache_alloc_trace+0x22e/0x470
dvb_register_device+0x12f/0x980
dvb_dmxdev_init+0x1f3/0x230
...
Freed by task 7666:
kasan_save_stack+0x23/0x50
kasan_set_track+0x20/0x30
kasan_set_free_info+0x24/0x40
__kasan_slab_free+0xf2/0x130
kfree+0xd1/0x5c0
dvb_register_device.cold+0x1ac/0x1fa
dvb_dmxdev_init+0x1f3/0x230
...
When dvb_register_device() in dvb_dmxdev_init() fails, dvb_dmxdev_init()
does not return a failure, and the memory pointed to by dvbdev or
dvr_dvbdev is invalid at this point. If they are used subsequently, it
will result in UFA or null-ptr-deref.
If dvb_register_device() in dvb_dmxdev_init() fails, fix the bug by making
dvb_dmxdev_init() return an error as well.
Link: https://lore.kernel.org/linux-media/20211015085741.1203283-1-wanghai38@huawei.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/dvb-core/dmxdev.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index 51009b2718a3e..ab9c4dba2a695 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -1209,7 +1209,7 @@ static const struct dvb_device dvbdev_dvr = {
};
int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
{
- int i;
+ int i, ret;
if (dmxdev->demux->open(dmxdev->demux) < 0)
return -EUSERS;
@@ -1227,14 +1227,26 @@ int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
DMXDEV_STATE_FREE);
}
- dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
+ ret = dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
DVB_DEVICE_DEMUX, dmxdev->filternum);
- dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
+ if (ret < 0)
+ goto err_register_dvbdev;
+
+ ret = dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
dmxdev, DVB_DEVICE_DVR, dmxdev->filternum);
+ if (ret < 0)
+ goto err_register_dvr_dvbdev;
dvb_ringbuffer_init(&dmxdev->dvr_buffer, NULL, 8192);
return 0;
+
+err_register_dvr_dvbdev:
+ dvb_unregister_device(dmxdev->dvbdev);
+err_register_dvbdev:
+ vfree(dmxdev->filter);
+ dmxdev->filter = NULL;
+ return ret;
}
EXPORT_SYMBOL(dvb_dmxdev_init);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 040/186] crypto: qce - fix uaf on qce_ahash_register_one
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (38 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 039/186] media: dmxdev: fix UAF when dvb_register_device() fails Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 041/186] tty: serial: atmel: Check return code of dmaengine_submit() Greg Kroah-Hartman
` (146 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chengfeng Ye, Thara Gopinath,
Herbert Xu, Sasha Levin
From: Chengfeng Ye <cyeaa@connect.ust.hk>
[ Upstream commit b4cb4d31631912842eb7dce02b4350cbb7562d5e ]
Pointer base points to sub field of tmpl, it
is dereferenced after tmpl is freed. Fix
this by accessing base before free tmpl.
Fixes: ec8f5d8f ("crypto: qce - Qualcomm crypto engine driver")
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/qce/sha.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index 47e114ac09d01..ff1e788f92767 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c
@@ -544,8 +544,8 @@ static int qce_ahash_register_one(const struct qce_ahash_def *def,
ret = crypto_register_ahash(alg);
if (ret) {
- kfree(tmpl);
dev_err(qce->dev, "%s registration failed\n", base->cra_name);
+ kfree(tmpl);
return ret;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 041/186] tty: serial: atmel: Check return code of dmaengine_submit()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (39 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 040/186] crypto: qce - fix uaf on qce_ahash_register_one Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 042/186] tty: serial: atmel: Call dma_async_issue_pending() Greg Kroah-Hartman
` (145 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tudor Ambarus, Richard Genoud, Sasha Levin
From: Tudor Ambarus <tudor.ambarus@microchip.com>
[ Upstream commit 1e67bd2b8cb90b66e89562598e9c2046246832d3 ]
The tx_submit() method of struct dma_async_tx_descriptor is entitled
to do sanity checks and return errors if encountered. It's not the
case for the DMA controller drivers that this client is using
(at_h/xdmac), because they currently don't do sanity checks and always
return a positive cookie at tx_submit() method. In case the controller
drivers will implement sanity checks and return errors, print a message
so that the client will be informed that something went wrong at
tx_submit() level.
Fixes: 08f738be88bb ("serial: at91: add tx dma support")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Link: https://lore.kernel.org/r/20211125090028.786832-3-tudor.ambarus@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/atmel_serial.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index a00227d312d3f..9a56b88df95f8 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -925,6 +925,11 @@ static void atmel_tx_dma(struct uart_port *port)
desc->callback = atmel_complete_tx_dma;
desc->callback_param = atmel_port;
atmel_port->cookie_tx = dmaengine_submit(desc);
+ if (dma_submit_error(atmel_port->cookie_tx)) {
+ dev_err(port->dev, "dma_submit_error %d\n",
+ atmel_port->cookie_tx);
+ return;
+ }
}
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@@ -1183,6 +1188,11 @@ static int atmel_prepare_rx_dma(struct uart_port *port)
desc->callback_param = port;
atmel_port->desc_rx = desc;
atmel_port->cookie_rx = dmaengine_submit(desc);
+ if (dma_submit_error(atmel_port->cookie_rx)) {
+ dev_err(port->dev, "dma_submit_error %d\n",
+ atmel_port->cookie_rx);
+ goto chan_err;
+ }
return 0;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 042/186] tty: serial: atmel: Call dma_async_issue_pending()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (40 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 041/186] tty: serial: atmel: Check return code of dmaengine_submit() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 043/186] media: mtk-vcodec: call v4l2_m2m_ctx_release first when file is released Greg Kroah-Hartman
` (144 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Tudor Ambarus, Sasha Levin
From: Tudor Ambarus <tudor.ambarus@microchip.com>
[ Upstream commit 4f4b9b5895614eb2e2b5f4cab7858f44bd113e1b ]
The driver wrongly assummed that tx_submit() will start the transfer,
which is not the case, now that the at_xdmac driver is fixed. tx_submit
is supposed to push the current transaction descriptor to a pending queue,
waiting for issue_pending to be called. issue_pending must start the
transfer, not tx_submit.
Fixes: 34df42f59a60 ("serial: at91: add rx dma support")
Fixes: 08f738be88bb ("serial: at91: add tx dma support")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211125090028.786832-4-tudor.ambarus@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/atmel_serial.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 9a56b88df95f8..4da5604d7385a 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -930,6 +930,8 @@ static void atmel_tx_dma(struct uart_port *port)
atmel_port->cookie_tx);
return;
}
+
+ dma_async_issue_pending(chan);
}
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@@ -1194,6 +1196,8 @@ static int atmel_prepare_rx_dma(struct uart_port *port)
goto chan_err;
}
+ dma_async_issue_pending(atmel_port->chan_rx);
+
return 0;
chan_err:
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 043/186] media: mtk-vcodec: call v4l2_m2m_ctx_release first when file is released
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (41 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 042/186] tty: serial: atmel: Call dma_async_issue_pending() Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:41 ` [PATCH 4.14 044/186] netfilter: bridge: add support for pppoe filtering Greg Kroah-Hartman
` (143 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dafna Hirschfeld, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
[ Upstream commit 9f89c881bffbdffe4060ffaef3489a2830a6dd9c ]
The func v4l2_m2m_ctx_release waits for currently running jobs
to finish and then stop streaming both queues and frees the buffers.
All this should be done before the call to mtk_vcodec_enc_release
which frees the encoder handler. This fixes null-pointer dereference bug:
[ 638.028076] Mem abort info:
[ 638.030932] ESR = 0x96000004
[ 638.033978] EC = 0x25: DABT (current EL), IL = 32 bits
[ 638.039293] SET = 0, FnV = 0
[ 638.042338] EA = 0, S1PTW = 0
[ 638.045474] FSC = 0x04: level 0 translation fault
[ 638.050349] Data abort info:
[ 638.053224] ISV = 0, ISS = 0x00000004
[ 638.057055] CM = 0, WnR = 0
[ 638.060018] user pgtable: 4k pages, 48-bit VAs, pgdp=000000012b6db000
[ 638.066485] [00000000000001a0] pgd=0000000000000000, p4d=0000000000000000
[ 638.073277] Internal error: Oops: 96000004 [#1] SMP
[ 638.078145] Modules linked in: rfkill mtk_vcodec_dec mtk_vcodec_enc uvcvideo mtk_mdp mtk_vcodec_common videobuf2_dma_contig v4l2_h264 cdc_ether v4l2_mem2mem videobuf2_vmalloc usbnet videobuf2_memops videobuf2_v4l2 r8152 videobuf2_common videodev cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf elan_i2c elants_i2c sbs_battery mc cros_usbpd_charger cros_ec_chardev cros_usbpd_logger crct10dif_ce mtk_vpu fuse ip_tables x_tables ipv6
[ 638.118583] CPU: 0 PID: 212 Comm: kworker/u8:5 Not tainted 5.15.0-06427-g58a1d4dcfc74-dirty #109
[ 638.127357] Hardware name: Google Elm (DT)
[ 638.131444] Workqueue: mtk-vcodec-enc mtk_venc_worker [mtk_vcodec_enc]
[ 638.137974] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 638.144925] pc : vp8_enc_encode+0x34/0x2b0 [mtk_vcodec_enc]
[ 638.150493] lr : venc_if_encode+0xac/0x1b0 [mtk_vcodec_enc]
[ 638.156060] sp : ffff8000124d3c40
[ 638.159364] x29: ffff8000124d3c40 x28: 0000000000000000 x27: 0000000000000000
[ 638.166493] x26: 0000000000000000 x25: ffff0000e7f252d0 x24: ffff8000124d3d58
[ 638.173621] x23: ffff8000124d3d58 x22: ffff8000124d3d60 x21: 0000000000000001
[ 638.180750] x20: ffff80001137e000 x19: 0000000000000000 x18: 0000000000000001
[ 638.187878] x17: 000000040044ffff x16: 00400032b5503510 x15: 0000000000000000
[ 638.195006] x14: ffff8000118536c0 x13: ffff8000ee1da000 x12: 0000000030d4d91d
[ 638.202134] x11: 0000000000000000 x10: 0000000000000980 x9 : ffff8000124d3b20
[ 638.209262] x8 : ffff0000c18d4ea0 x7 : ffff0000c18d44c0 x6 : ffff0000c18d44c0
[ 638.216391] x5 : ffff80000904a3b0 x4 : ffff8000124d3d58 x3 : ffff8000124d3d60
[ 638.223519] x2 : ffff8000124d3d78 x1 : 0000000000000001 x0 : ffff80001137efb8
[ 638.230648] Call trace:
[ 638.233084] vp8_enc_encode+0x34/0x2b0 [mtk_vcodec_enc]
[ 638.238304] venc_if_encode+0xac/0x1b0 [mtk_vcodec_enc]
[ 638.243525] mtk_venc_worker+0x110/0x250 [mtk_vcodec_enc]
[ 638.248918] process_one_work+0x1f8/0x498
[ 638.252923] worker_thread+0x140/0x538
[ 638.256664] kthread+0x148/0x158
[ 638.259884] ret_from_fork+0x10/0x20
[ 638.263455] Code: f90023f9 2a0103f5 aa0303f6 aa0403f8 (f940d277)
[ 638.269538] ---[ end trace e374fc10f8e181f5 ]---
[gst-master] root@debian:~/gst-build# [ 638.019193] Unable to handle kernel NULL pointer dereference at virtual address 00000000000001a0
Fixes: 4e855a6efa547 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 83f859e8509c9..b95006a864c26 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -217,11 +217,11 @@ static int fops_vcodec_release(struct file *file)
mtk_v4l2_debug(1, "[%d] encoder", ctx->id);
mutex_lock(&dev->dev_mutex);
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
mtk_vcodec_enc_release(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
- v4l2_m2m_ctx_release(ctx->m2m_ctx);
list_del_init(&ctx->list);
kfree(ctx);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 044/186] netfilter: bridge: add support for pppoe filtering
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (42 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 043/186] media: mtk-vcodec: call v4l2_m2m_ctx_release first when file is released Greg Kroah-Hartman
@ 2022-01-24 18:41 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 045/186] arm64: dts: qcom: msm8916: fix MMC controller aliases Greg Kroah-Hartman
` (142 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:41 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Florian Westphal, Pablo Neira Ayuso,
Sasha Levin, Amish Chana
From: Florian Westphal <fw@strlen.de>
[ Upstream commit 28b78ecffea8078d81466b2e01bb5a154509f1ba ]
This makes 'bridge-nf-filter-pppoe-tagged' sysctl work for
bridged traffic.
Looking at the original commit it doesn't appear this ever worked:
static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
[..]
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(skb, VLAN_HLEN);
skb->network_header += VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_pull(skb, PPPOE_SES_HLEN);
+ skb->network_header += PPPOE_SES_HLEN;
}
[..]
NF_HOOK(... POST_ROUTING, ...)
... but the adjusted offsets are never restored.
The alternative would be to rip this code out for good,
but otoh we'd have to keep this anyway for the vlan handling
(which works because vlan tag info is in the skb, not the packet
payload).
Reported-and-tested-by: Amish Chana <amish@3g.co.za>
Fixes: 516299d2f5b6f97 ("[NETFILTER]: bridge-nf: filter bridged IPv4/IPv6 encapsulated in pppoe traffic")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bridge/br_netfilter_hooks.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 8155c3d811a14..7e50bd9f36112 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -724,6 +724,9 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff
if (nf_bridge->frag_max_size && nf_bridge->frag_max_size < mtu)
mtu = nf_bridge->frag_max_size;
+ nf_bridge_update_protocol(skb);
+ nf_bridge_push_encap_header(skb);
+
if (skb_is_gso(skb) || skb->len + mtu_reserved <= mtu) {
nf_bridge_info_free(skb);
return br_dev_queue_push_xmit(net, sk, skb);
@@ -741,8 +744,6 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff
IPCB(skb)->frag_max_size = nf_bridge->frag_max_size;
- nf_bridge_update_protocol(skb);
-
data = this_cpu_ptr(&brnf_frag_data_storage);
data->vlan_tci = skb->vlan_tci;
@@ -765,8 +766,6 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff
IP6CB(skb)->frag_max_size = nf_bridge->frag_max_size;
- nf_bridge_update_protocol(skb);
-
data = this_cpu_ptr(&brnf_frag_data_storage);
data->encap_size = nf_bridge_encap_header_len(skb);
data->size = ETH_HLEN + data->encap_size;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 045/186] arm64: dts: qcom: msm8916: fix MMC controller aliases
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (43 preceding siblings ...)
2022-01-24 18:41 ` [PATCH 4.14 044/186] netfilter: bridge: add support for pppoe filtering Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 046/186] drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode() Greg Kroah-Hartman
` (141 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dmitry Baryshkov, Bjorn Andersson,
Sasha Levin
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
[ Upstream commit b0293c19d42f6d6951c2fab9a47fed50baf2c14d ]
Change sdhcN aliases to mmcN to make them actually work. Currently the
board uses non-standard aliases sdhcN, which do not work, resulting in
mmc0 and mmc1 hosts randomly changing indices between boots.
Fixes: c4da5a561627 ("arm64: dts: qcom: Add msm8916 sdhci configuration nodes")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211201020559.1611890-1-dmitry.baryshkov@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/qcom/msm8916.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 94697bab3805f..a961b81060004 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -26,8 +26,8 @@
#size-cells = <2>;
aliases {
- sdhc1 = &sdhc_1; /* SDC1 eMMC slot */
- sdhc2 = &sdhc_2; /* SDC2 SD card slot */
+ mmc0 = &sdhc_1; /* SDC1 eMMC slot */
+ mmc1 = &sdhc_2; /* SDC2 SD card slot */
};
chosen { };
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 046/186] drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (44 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 045/186] arm64: dts: qcom: msm8916: fix MMC controller aliases Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 047/186] drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms() Greg Kroah-Hartman
` (140 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Alex Deucher, Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit b220110e4cd442156f36e1d9b4914bb9e87b0d00 ]
In amdgpu_connector_lcd_native_mode(), the return value of
drm_mode_duplicate() is assigned to mode, and there is a dereference
of it in amdgpu_connector_lcd_native_mode(), which will lead to a NULL
pointer dereference on failure of drm_mode_duplicate().
Fix this bug add a check of mode.
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_DRM_AMDGPU=m show no new warnings, and
our static analyzer no longer warns about this code.
Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
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 | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 54f414279037e..0894bb98dc517 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -404,6 +404,9 @@ amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
native_mode->vdisplay != 0 &&
native_mode->clock != 0) {
mode = drm_mode_duplicate(dev, native_mode);
+ if (!mode)
+ return NULL;
+
mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
drm_mode_set_name(mode);
@@ -418,6 +421,9 @@ amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
* simpler.
*/
mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
+ if (!mode)
+ return NULL;
+
mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 047/186] drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (45 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 046/186] drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 048/186] serial: amba-pl011: do not request memory region twice Greg Kroah-Hartman
` (139 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christian König, Zhou Qingyang,
Alex Deucher, Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit ab50cb9df8896b39aae65c537a30de2c79c19735 ]
In radeon_driver_open_kms(), radeon_vm_bo_add() is assigned to
vm->ib_bo_va and passes and used in radeon_vm_bo_set_addr(). In
radeon_vm_bo_set_addr(), there is a dereference of vm->ib_bo_va,
which could lead to a NULL pointer dereference on failure of
radeon_vm_bo_add().
Fix this bug by adding a check of vm->ib_bo_va.
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_DRM_RADEON=m show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: cc9e67e3d700 ("drm/radeon: fix VM IB handling")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/radeon/radeon_kms.c | 36 ++++++++++++++++-------------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 4973bd241aec3..fb292b9f3d402 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -655,6 +655,8 @@ void radeon_driver_lastclose_kms(struct drm_device *dev)
int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
{
struct radeon_device *rdev = dev->dev_private;
+ struct radeon_fpriv *fpriv;
+ struct radeon_vm *vm;
int r;
file_priv->driver_priv = NULL;
@@ -667,8 +669,6 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
/* new gpu have virtual address space support */
if (rdev->family >= CHIP_CAYMAN) {
- struct radeon_fpriv *fpriv;
- struct radeon_vm *vm;
fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
if (unlikely(!fpriv)) {
@@ -679,35 +679,39 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
if (rdev->accel_working) {
vm = &fpriv->vm;
r = radeon_vm_init(rdev, vm);
- if (r) {
- kfree(fpriv);
- goto out_suspend;
- }
+ if (r)
+ goto out_fpriv;
r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
- if (r) {
- radeon_vm_fini(rdev, vm);
- kfree(fpriv);
- goto out_suspend;
- }
+ if (r)
+ goto out_vm_fini;
/* map the ib pool buffer read only into
* virtual address space */
vm->ib_bo_va = radeon_vm_bo_add(rdev, vm,
rdev->ring_tmp_bo.bo);
+ if (!vm->ib_bo_va) {
+ r = -ENOMEM;
+ goto out_vm_fini;
+ }
+
r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
RADEON_VA_IB_OFFSET,
RADEON_VM_PAGE_READABLE |
RADEON_VM_PAGE_SNOOPED);
- if (r) {
- radeon_vm_fini(rdev, vm);
- kfree(fpriv);
- goto out_suspend;
- }
+ if (r)
+ goto out_vm_fini;
}
file_priv->driver_priv = fpriv;
}
+ if (!r)
+ goto out_suspend;
+
+out_vm_fini:
+ radeon_vm_fini(rdev, vm);
+out_fpriv:
+ kfree(fpriv);
out_suspend:
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 048/186] serial: amba-pl011: do not request memory region twice
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (46 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 047/186] drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 049/186] floppy: Fix hang in watchdog when disk is ejected Greg Kroah-Hartman
` (138 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Lino Sanfilippo, Sasha Levin
From: Lino Sanfilippo <LinoSanfilippo@gmx.de>
[ Upstream commit d1180405c7b5c7a1c6bde79d5fc24fe931430737 ]
With commit 3873e2d7f63a ("drivers: PL011: refactor pl011_probe()") the
function devm_ioremap() called from pl011_setup_port() was replaced with
devm_ioremap_resource(). Since this function not only remaps but also
requests the ports io memory region it now collides with the .config_port()
callback which requests the same region at uart port registration.
Since devm_ioremap_resource() already claims the memory successfully, the
request in .config_port() fails.
Later at uart port deregistration the attempt to release the unclaimed
memory also fails. The failure results in a “Trying to free nonexistent
resource" warning.
Fix these issues by removing the callbacks that implement the redundant
memory allocation/release. Also make sure that changing the drivers io
memory base address via TIOCSSERIAL is not allowed any more.
Fixes: 3873e2d7f63a ("drivers: PL011: refactor pl011_probe()")
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Link: https://lore.kernel.org/r/20211129174238.8333-1-LinoSanfilippo@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/amba-pl011.c | 27 +++------------------------
1 file changed, 3 insertions(+), 24 deletions(-)
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index dcf84d5020c65..a9aa8cd7f29c8 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2111,32 +2111,13 @@ static const char *pl011_type(struct uart_port *port)
return uap->port.type == PORT_AMBA ? uap->type : NULL;
}
-/*
- * Release the memory region(s) being used by 'port'
- */
-static void pl011_release_port(struct uart_port *port)
-{
- release_mem_region(port->mapbase, SZ_4K);
-}
-
-/*
- * Request the memory region(s) being used by 'port'
- */
-static int pl011_request_port(struct uart_port *port)
-{
- return request_mem_region(port->mapbase, SZ_4K, "uart-pl011")
- != NULL ? 0 : -EBUSY;
-}
-
/*
* Configure/autoconfigure the port.
*/
static void pl011_config_port(struct uart_port *port, int flags)
{
- if (flags & UART_CONFIG_TYPE) {
+ if (flags & UART_CONFIG_TYPE)
port->type = PORT_AMBA;
- pl011_request_port(port);
- }
}
/*
@@ -2151,6 +2132,8 @@ static int pl011_verify_port(struct uart_port *port, struct serial_struct *ser)
ret = -EINVAL;
if (ser->baud_base < 9600)
ret = -EINVAL;
+ if (port->mapbase != (unsigned long) ser->iomem_base)
+ ret = -EINVAL;
return ret;
}
@@ -2168,8 +2151,6 @@ static const struct uart_ops amba_pl011_pops = {
.flush_buffer = pl011_dma_flush_buffer,
.set_termios = pl011_set_termios,
.type = pl011_type,
- .release_port = pl011_release_port,
- .request_port = pl011_request_port,
.config_port = pl011_config_port,
.verify_port = pl011_verify_port,
#ifdef CONFIG_CONSOLE_POLL
@@ -2199,8 +2180,6 @@ static const struct uart_ops sbsa_uart_pops = {
.shutdown = sbsa_uart_shutdown,
.set_termios = sbsa_uart_set_termios,
.type = pl011_type,
- .release_port = pl011_release_port,
- .request_port = pl011_request_port,
.config_port = pl011_config_port,
.verify_port = pl011_verify_port,
#ifdef CONFIG_CONSOLE_POLL
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 049/186] floppy: Fix hang in watchdog when disk is ejected
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (47 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 048/186] serial: amba-pl011: do not request memory region twice Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 050/186] media: dib8000: Fix a memleak in dib8000_init() Greg Kroah-Hartman
` (137 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tasos Sahanidis, Denis Efremov,
Jens Axboe, Sasha Levin
From: Tasos Sahanidis <tasos@tasossah.com>
[ Upstream commit fb48febce7e30baed94dd791e19521abd2c3fd83 ]
When the watchdog detects a disk change, it calls cancel_activity(),
which in turn tries to cancel the fd_timer delayed work.
In the above scenario, fd_timer_fn is set to fd_watchdog(), meaning
it is trying to cancel its own work.
This results in a hang as cancel_delayed_work_sync() is waiting for the
watchdog (itself) to return, which never happens.
This can be reproduced relatively consistently by attempting to read a
broken floppy, and ejecting it while IO is being attempted and retried.
To resolve this, this patch calls cancel_delayed_work() instead, which
cancels the work without waiting for the watchdog to return and finish.
Before this regression was introduced, the code in this section used
del_timer(), and not del_timer_sync() to delete the watchdog timer.
Link: https://lore.kernel.org/r/399e486c-6540-db27-76aa-7a271b061f76@tasossah.com
Fixes: 070ad7e793dc ("floppy: convert to delayed work and single-thread wq")
Signed-off-by: Tasos Sahanidis <tasos@tasossah.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/block/floppy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index cbf74731cfce6..b6c99cf1ce745 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -994,7 +994,7 @@ static DECLARE_DELAYED_WORK(fd_timer, fd_timer_workfn);
static void cancel_activity(void)
{
do_floppy = NULL;
- cancel_delayed_work_sync(&fd_timer);
+ cancel_delayed_work(&fd_timer);
cancel_work_sync(&floppy_work);
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 050/186] media: dib8000: Fix a memleak in dib8000_init()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (48 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 049/186] floppy: Fix hang in watchdog when disk is ejected Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 051/186] media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach() Greg Kroah-Hartman
` (136 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit 8dbdcc7269a83305ee9d677b75064d3530a48ee2 ]
In dib8000_init(), the variable fe is not freed or passed out on the
failure of dib8000_identify(&state->i2c), which could lead to a memleak.
Fix this bug by adding a kfree of fe in the error path.
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_DVB_DIB8000=m show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: 77e2c0f5d471 ("V4L/DVB (12900): DiB8000: added support for DiBcom ISDB-T/ISDB-Tsb demodulator DiB8000")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/dvb-frontends/dib8000.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
index 59ab01dc62b19..c429392ebbe63 100644
--- a/drivers/media/dvb-frontends/dib8000.c
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -4476,8 +4476,10 @@ static struct dvb_frontend *dib8000_init(struct i2c_adapter *i2c_adap, u8 i2c_ad
state->timf_default = cfg->pll->timf;
- if (dib8000_identify(&state->i2c) == 0)
+ if (dib8000_identify(&state->i2c) == 0) {
+ kfree(fe);
goto error;
+ }
dibx000_init_i2c_master(&state->i2c_master, DIB8000, state->i2c.adap, state->i2c.addr);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 051/186] media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (49 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 050/186] media: dib8000: Fix a memleak in dib8000_init() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 052/186] media: si2157: Fix "warm" tuner state detection Greg Kroah-Hartman
` (135 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit 0407c49ebe330333478440157c640fffd986f41b ]
In mxb_attach(dev, info), saa7146_vv_init() is called to allocate a
new memory for dev->vv_data. saa7146_vv_release() will be called on
failure of mxb_probe(dev). There is a dereference of dev->vv_data
in saa7146_vv_release(), which could lead to a NULL pointer dereference
on failure of saa7146_vv_init().
Fix this bug by adding a check of saa7146_vv_init().
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_VIDEO_MXB=m show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: 03b1930efd3c ("V4L/DVB: saa7146: fix regression of the av7110/budget-av driver")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/saa7146/mxb.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/media/pci/saa7146/mxb.c b/drivers/media/pci/saa7146/mxb.c
index 2e7bd82282caa..b2260deab94cc 100644
--- a/drivers/media/pci/saa7146/mxb.c
+++ b/drivers/media/pci/saa7146/mxb.c
@@ -694,10 +694,16 @@ static struct saa7146_ext_vv vv_data;
static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
{
struct mxb *mxb;
+ int ret;
DEB_EE("dev:%p\n", dev);
- saa7146_vv_init(dev, &vv_data);
+ ret = saa7146_vv_init(dev, &vv_data);
+ if (ret) {
+ ERR("Error in saa7146_vv_init()");
+ return ret;
+ }
+
if (mxb_probe(dev)) {
saa7146_vv_release(dev);
return -1;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 052/186] media: si2157: Fix "warm" tuner state detection
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (50 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 051/186] media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 053/186] sched/rt: Try to restart rt period timer when rt runtime exceeded Greg Kroah-Hartman
` (134 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Robert Schlabbach,
Mauro Carvalho Chehab, Sasha Levin
From: Robert Schlabbach <robert_s@gmx.net>
[ Upstream commit a6441ea29cb2c9314654e093a1cd8020b9b851c8 ]
Commit e955f959ac52 ("media: si2157: Better check for running tuner in
init") completely broke the "warm" tuner detection of the si2157 driver
due to a simple endian error: The Si2157 CRYSTAL_TRIM property code is
0x0402 and needs to be transmitted LSB first. However, it was inserted
MSB first, causing the warm detection to always fail and spam the kernel
log with tuner initialization messages each time the DVB frontend
device was closed and reopened:
[ 312.215682] si2157 16-0060: found a 'Silicon Labs Si2157-A30'
[ 312.264334] si2157 16-0060: firmware version: 3.0.5
[ 342.248593] si2157 16-0060: found a 'Silicon Labs Si2157-A30'
[ 342.295743] si2157 16-0060: firmware version: 3.0.5
[ 372.328574] si2157 16-0060: found a 'Silicon Labs Si2157-A30'
[ 372.385035] si2157 16-0060: firmware version: 3.0.5
Also, the reinitializations were observed disturb _other_ tuners on
multi-tuner cards such as the Hauppauge WinTV-QuadHD, leading to missed
or errored packets when one of the other DVB frontend devices on that
card was opened.
Fix the order of the property code bytes to make the warm detection work
again, also reducing the tuner initialization message in the kernel log
to once per power-on, as well as fixing the interference with other
tuners.
Link: https://lore.kernel.org/linux-media/trinity-2a86eb9d-6264-4387-95e1-ba7b79a4050f-1638392923493@3c-app-gmx-bap03
Fixes: e955f959ac52 ("media: si2157: Better check for running tuner in init")
Reported-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/tuners/si2157.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index c826997f54330..229fea019e99e 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -89,7 +89,7 @@ static int si2157_init(struct dvb_frontend *fe)
dev_dbg(&client->dev, "\n");
/* Try to get Xtal trim property, to verify tuner still running */
- memcpy(cmd.args, "\x15\x00\x04\x02", 4);
+ memcpy(cmd.args, "\x15\x00\x02\x04", 4);
cmd.wlen = 4;
cmd.rlen = 4;
ret = si2157_cmd_execute(client, &cmd);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 053/186] sched/rt: Try to restart rt period timer when rt runtime exceeded
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (51 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 052/186] media: si2157: Fix "warm" tuner state detection Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 054/186] media: dw2102: Fix use after free Greg Kroah-Hartman
` (133 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Li Hua,
Peter Zijlstra (Intel),
Sasha Levin
From: Li Hua <hucool.lihua@huawei.com>
[ Upstream commit 9b58e976b3b391c0cf02e038d53dd0478ed3013c ]
When rt_runtime is modified from -1 to a valid control value, it may
cause the task to be throttled all the time. Operations like the following
will trigger the bug. E.g:
1. echo -1 > /proc/sys/kernel/sched_rt_runtime_us
2. Run a FIFO task named A that executes while(1)
3. echo 950000 > /proc/sys/kernel/sched_rt_runtime_us
When rt_runtime is -1, The rt period timer will not be activated when task
A enqueued. And then the task will be throttled after setting rt_runtime to
950,000. The task will always be throttled because the rt period timer is
not activated.
Fixes: d0b27fa77854 ("sched: rt-group: synchonised bandwidth period")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211203033618.11895-1-hucool.lihua@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/rt.c | 23 ++++++++++++++++++-----
1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index cc7dd1aaf08e3..c093bb0f52eb1 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -52,11 +52,8 @@ void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime)
rt_b->rt_period_timer.function = sched_rt_period_timer;
}
-static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
+static inline void do_start_rt_bandwidth(struct rt_bandwidth *rt_b)
{
- if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
- return;
-
raw_spin_lock(&rt_b->rt_runtime_lock);
if (!rt_b->rt_period_active) {
rt_b->rt_period_active = 1;
@@ -74,6 +71,14 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
raw_spin_unlock(&rt_b->rt_runtime_lock);
}
+static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
+{
+ if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
+ return;
+
+ do_start_rt_bandwidth(rt_b);
+}
+
void init_rt_rq(struct rt_rq *rt_rq)
{
struct rt_prio_array *array;
@@ -982,13 +987,17 @@ static void update_curr_rt(struct rq *rq)
for_each_sched_rt_entity(rt_se) {
struct rt_rq *rt_rq = rt_rq_of_se(rt_se);
+ int exceeded;
if (sched_rt_runtime(rt_rq) != RUNTIME_INF) {
raw_spin_lock(&rt_rq->rt_runtime_lock);
rt_rq->rt_time += delta_exec;
- if (sched_rt_runtime_exceeded(rt_rq))
+ exceeded = sched_rt_runtime_exceeded(rt_rq);
+ if (exceeded)
resched_curr(rq);
raw_spin_unlock(&rt_rq->rt_runtime_lock);
+ if (exceeded)
+ do_start_rt_bandwidth(sched_rt_bandwidth(rt_rq));
}
}
}
@@ -2629,8 +2638,12 @@ static int sched_rt_global_validate(void)
static void sched_rt_do_global(void)
{
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&def_rt_bandwidth.rt_runtime_lock, flags);
def_rt_bandwidth.rt_runtime = global_rt_runtime();
def_rt_bandwidth.rt_period = ns_to_ktime(global_rt_period());
+ raw_spin_unlock_irqrestore(&def_rt_bandwidth.rt_runtime_lock, flags);
}
int sched_rt_handler(struct ctl_table *table, int write,
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 054/186] media: dw2102: Fix use after free
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (52 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 053/186] sched/rt: Try to restart rt period timer when rt runtime exceeded Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 055/186] media: msi001: fix possible null-ptr-deref in msi001_probe() Greg Kroah-Hartman
` (132 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Anton Vasilyev,
Mauro Carvalho Chehab, Sasha Levin
From: Anton Vasilyev <vasilyev@ispras.ru>
[ Upstream commit 589a9f0eb799f77de2c09583bf5bad221fa5d685 ]
dvb_usb_device_init stores parts of properties at d->props
and d->desc and uses it on dvb_usb_device_exit.
Free of properties on module probe leads to use after free.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204597
The patch makes properties static instead of allocated on heap to prevent
memleak and use after free.
Also fixes s421_properties.devices initialization to have 2 element
instead of 6 copied from p7500_properties.
[mchehab: fix function call alignments]
Link: https://lore.kernel.org/linux-media/20190822104147.4420-1-vasilyev@ispras.ru
Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Fixes: 299c7007e936 ("media: dw2102: Fix memleak on sequence of probes")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/dvb-usb/dw2102.c | 338 ++++++++++++++++++-----------
1 file changed, 215 insertions(+), 123 deletions(-)
diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
index 3d09e1c879217..98770a95721b9 100644
--- a/drivers/media/usb/dvb-usb/dw2102.c
+++ b/drivers/media/usb/dvb-usb/dw2102.c
@@ -2103,46 +2103,153 @@ static struct dvb_usb_device_properties s6x0_properties = {
}
};
-static const struct dvb_usb_device_description d1100 = {
- "Prof 1100 USB ",
- {&dw2102_table[PROF_1100], NULL},
- {NULL},
-};
+static struct dvb_usb_device_properties p1100_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .size_of_priv = sizeof(struct dw2102_state),
+ .firmware = P1100_FIRMWARE,
+ .no_reconnect = 1,
-static const struct dvb_usb_device_description d660 = {
- "TeVii S660 USB",
- {&dw2102_table[TEVII_S660], NULL},
- {NULL},
-};
+ .i2c_algo = &s6x0_i2c_algo,
+ .rc.core = {
+ .rc_interval = 150,
+ .rc_codes = RC_MAP_TBS_NEC,
+ .module_name = "dw2102",
+ .allowed_protos = RC_PROTO_BIT_NEC,
+ .rc_query = prof_rc_query,
+ },
-static const struct dvb_usb_device_description d480_1 = {
- "TeVii S480.1 USB",
- {&dw2102_table[TEVII_S480_1], NULL},
- {NULL},
+ .generic_bulk_ctrl_endpoint = 0x81,
+ .num_adapters = 1,
+ .download_firmware = dw2102_load_firmware,
+ .read_mac_address = s6x0_read_mac_address,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .frontend_attach = stv0288_frontend_attach,
+ .stream = {
+ .type = USB_BULK,
+ .count = 8,
+ .endpoint = 0x82,
+ .u = {
+ .bulk = {
+ .buffersize = 4096,
+ }
+ }
+ },
+ } },
+ }
+ },
+ .num_device_descs = 1,
+ .devices = {
+ {"Prof 1100 USB ",
+ {&dw2102_table[PROF_1100], NULL},
+ {NULL},
+ },
+ }
};
-static const struct dvb_usb_device_description d480_2 = {
- "TeVii S480.2 USB",
- {&dw2102_table[TEVII_S480_2], NULL},
- {NULL},
-};
+static struct dvb_usb_device_properties s660_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .size_of_priv = sizeof(struct dw2102_state),
+ .firmware = S660_FIRMWARE,
+ .no_reconnect = 1,
-static const struct dvb_usb_device_description d7500 = {
- "Prof 7500 USB DVB-S2",
- {&dw2102_table[PROF_7500], NULL},
- {NULL},
-};
+ .i2c_algo = &s6x0_i2c_algo,
+ .rc.core = {
+ .rc_interval = 150,
+ .rc_codes = RC_MAP_TEVII_NEC,
+ .module_name = "dw2102",
+ .allowed_protos = RC_PROTO_BIT_NEC,
+ .rc_query = dw2102_rc_query,
+ },
-static const struct dvb_usb_device_description d421 = {
- "TeVii S421 PCI",
- {&dw2102_table[TEVII_S421], NULL},
- {NULL},
+ .generic_bulk_ctrl_endpoint = 0x81,
+ .num_adapters = 1,
+ .download_firmware = dw2102_load_firmware,
+ .read_mac_address = s6x0_read_mac_address,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .frontend_attach = ds3000_frontend_attach,
+ .stream = {
+ .type = USB_BULK,
+ .count = 8,
+ .endpoint = 0x82,
+ .u = {
+ .bulk = {
+ .buffersize = 4096,
+ }
+ }
+ },
+ } },
+ }
+ },
+ .num_device_descs = 3,
+ .devices = {
+ {"TeVii S660 USB",
+ {&dw2102_table[TEVII_S660], NULL},
+ {NULL},
+ },
+ {"TeVii S480.1 USB",
+ {&dw2102_table[TEVII_S480_1], NULL},
+ {NULL},
+ },
+ {"TeVii S480.2 USB",
+ {&dw2102_table[TEVII_S480_2], NULL},
+ {NULL},
+ },
+ }
};
-static const struct dvb_usb_device_description d632 = {
- "TeVii S632 USB",
- {&dw2102_table[TEVII_S632], NULL},
- {NULL},
+static struct dvb_usb_device_properties p7500_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .size_of_priv = sizeof(struct dw2102_state),
+ .firmware = P7500_FIRMWARE,
+ .no_reconnect = 1,
+
+ .i2c_algo = &s6x0_i2c_algo,
+ .rc.core = {
+ .rc_interval = 150,
+ .rc_codes = RC_MAP_TBS_NEC,
+ .module_name = "dw2102",
+ .allowed_protos = RC_PROTO_BIT_NEC,
+ .rc_query = prof_rc_query,
+ },
+
+ .generic_bulk_ctrl_endpoint = 0x81,
+ .num_adapters = 1,
+ .download_firmware = dw2102_load_firmware,
+ .read_mac_address = s6x0_read_mac_address,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .frontend_attach = prof_7500_frontend_attach,
+ .stream = {
+ .type = USB_BULK,
+ .count = 8,
+ .endpoint = 0x82,
+ .u = {
+ .bulk = {
+ .buffersize = 4096,
+ }
+ }
+ },
+ } },
+ }
+ },
+ .num_device_descs = 1,
+ .devices = {
+ {"Prof 7500 USB DVB-S2",
+ {&dw2102_table[PROF_7500], NULL},
+ {NULL},
+ },
+ }
};
static struct dvb_usb_device_properties su3000_properties = {
@@ -2214,6 +2321,59 @@ static struct dvb_usb_device_properties su3000_properties = {
}
};
+static struct dvb_usb_device_properties s421_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+ .usb_ctrl = DEVICE_SPECIFIC,
+ .size_of_priv = sizeof(struct dw2102_state),
+ .power_ctrl = su3000_power_ctrl,
+ .num_adapters = 1,
+ .identify_state = su3000_identify_state,
+ .i2c_algo = &su3000_i2c_algo,
+
+ .rc.core = {
+ .rc_interval = 150,
+ .rc_codes = RC_MAP_SU3000,
+ .module_name = "dw2102",
+ .allowed_protos = RC_PROTO_BIT_RC5,
+ .rc_query = su3000_rc_query,
+ },
+
+ .read_mac_address = su3000_read_mac_address,
+
+ .generic_bulk_ctrl_endpoint = 0x01,
+
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .streaming_ctrl = su3000_streaming_ctrl,
+ .frontend_attach = m88rs2000_frontend_attach,
+ .stream = {
+ .type = USB_BULK,
+ .count = 8,
+ .endpoint = 0x82,
+ .u = {
+ .bulk = {
+ .buffersize = 4096,
+ }
+ }
+ }
+ } },
+ }
+ },
+ .num_device_descs = 2,
+ .devices = {
+ { "TeVii S421 PCI",
+ { &dw2102_table[TEVII_S421], NULL },
+ { NULL },
+ },
+ { "TeVii S632 USB",
+ { &dw2102_table[TEVII_S632], NULL },
+ { NULL },
+ },
+ }
+};
+
static struct dvb_usb_device_properties t220_properties = {
.caps = DVB_USB_IS_AN_I2C_ADAPTER,
.usb_ctrl = DEVICE_SPECIFIC,
@@ -2331,101 +2491,33 @@ static struct dvb_usb_device_properties tt_s2_4600_properties = {
static int dw2102_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
- int retval = -ENOMEM;
- struct dvb_usb_device_properties *p1100;
- struct dvb_usb_device_properties *s660;
- struct dvb_usb_device_properties *p7500;
- struct dvb_usb_device_properties *s421;
-
- p1100 = kmemdup(&s6x0_properties,
- sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
- if (!p1100)
- goto err0;
-
- /* copy default structure */
- /* fill only different fields */
- p1100->firmware = P1100_FIRMWARE;
- p1100->devices[0] = d1100;
- p1100->rc.core.rc_query = prof_rc_query;
- p1100->rc.core.rc_codes = RC_MAP_TBS_NEC;
- p1100->adapter->fe[0].frontend_attach = stv0288_frontend_attach;
-
- s660 = kmemdup(&s6x0_properties,
- sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
- if (!s660)
- goto err1;
-
- s660->firmware = S660_FIRMWARE;
- s660->num_device_descs = 3;
- s660->devices[0] = d660;
- s660->devices[1] = d480_1;
- s660->devices[2] = d480_2;
- s660->adapter->fe[0].frontend_attach = ds3000_frontend_attach;
-
- p7500 = kmemdup(&s6x0_properties,
- sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
- if (!p7500)
- goto err2;
-
- p7500->firmware = P7500_FIRMWARE;
- p7500->devices[0] = d7500;
- p7500->rc.core.rc_query = prof_rc_query;
- p7500->rc.core.rc_codes = RC_MAP_TBS_NEC;
- p7500->adapter->fe[0].frontend_attach = prof_7500_frontend_attach;
-
-
- s421 = kmemdup(&su3000_properties,
- sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
- if (!s421)
- goto err3;
-
- s421->num_device_descs = 2;
- s421->devices[0] = d421;
- s421->devices[1] = d632;
- s421->adapter->fe[0].frontend_attach = m88rs2000_frontend_attach;
-
- if (0 == dvb_usb_device_init(intf, &dw2102_properties,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, &dw2104_properties,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, &dw3101_properties,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, &s6x0_properties,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, p1100,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, s660,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, p7500,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, s421,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, &su3000_properties,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, &t220_properties,
- THIS_MODULE, NULL, adapter_nr) ||
- 0 == dvb_usb_device_init(intf, &tt_s2_4600_properties,
- THIS_MODULE, NULL, adapter_nr)) {
-
- /* clean up copied properties */
- kfree(s421);
- kfree(p7500);
- kfree(s660);
- kfree(p1100);
+ if (!(dvb_usb_device_init(intf, &dw2102_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &dw2104_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &dw3101_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &s6x0_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &p1100_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &s660_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &p7500_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &s421_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &su3000_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &t220_properties,
+ THIS_MODULE, NULL, adapter_nr) &&
+ dvb_usb_device_init(intf, &tt_s2_4600_properties,
+ THIS_MODULE, NULL, adapter_nr))) {
return 0;
}
- retval = -ENODEV;
- kfree(s421);
-err3:
- kfree(p7500);
-err2:
- kfree(s660);
-err1:
- kfree(p1100);
-err0:
- return retval;
+ return -ENODEV;
}
static void dw2102_disconnect(struct usb_interface *intf)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 055/186] media: msi001: fix possible null-ptr-deref in msi001_probe()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (53 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 054/186] media: dw2102: Fix use after free Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 056/186] usb: ftdi-elan: fix memory leak on device disconnect Greg Kroah-Hartman
` (131 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wang Hai,
Mauro Carvalho Chehab, Sasha Levin
From: Wang Hai <wanghai38@huawei.com>
[ Upstream commit 3d5831a40d3464eea158180eb12cbd81c5edfb6a ]
I got a null-ptr-deref report:
BUG: kernel NULL pointer dereference, address: 0000000000000060
...
RIP: 0010:v4l2_ctrl_auto_cluster+0x57/0x270
...
Call Trace:
msi001_probe+0x13b/0x24b [msi001]
spi_probe+0xeb/0x130
...
do_syscall_64+0x35/0xb0
In msi001_probe(), if the creation of control for bandwidth_auto
fails, there will be a null-ptr-deref issue when it is used in
v4l2_ctrl_auto_cluster().
Check dev->hdl.error before v4l2_ctrl_auto_cluster() to fix this bug.
Link: https://lore.kernel.org/linux-media/20211026112348.2878040-1-wanghai38@huawei.com
Fixes: 93203dd6c7c4 ("[media] msi001: Mirics MSi001 silicon tuner driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/tuners/msi001.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/media/tuners/msi001.c b/drivers/media/tuners/msi001.c
index 3a12ef35682b5..64d98517f470f 100644
--- a/drivers/media/tuners/msi001.c
+++ b/drivers/media/tuners/msi001.c
@@ -464,6 +464,13 @@ static int msi001_probe(struct spi_device *spi)
V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
V4L2_CID_RF_TUNER_BANDWIDTH, 200000, 8000000, 1, 200000);
+ if (dev->hdl.error) {
+ ret = dev->hdl.error;
+ dev_err(&spi->dev, "Could not initialize controls\n");
+ /* control init failed, free handler */
+ goto err_ctrl_handler_free;
+ }
+
v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
dev->lna_gain = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 056/186] usb: ftdi-elan: fix memory leak on device disconnect
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (54 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 055/186] media: msi001: fix possible null-ptr-deref in msi001_probe() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 057/186] x86/mce/inject: Avoid out-of-bounds write when setting flags Greg Kroah-Hartman
` (130 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wei Yongjun, Sasha Levin
From: Wei Yongjun <weiyongjun1@huawei.com>
[ Upstream commit 1646566b5e0c556f779180a8514e521ac735de1e ]
'ftdi' is alloced when probe device, but not free on device disconnect,
this cause a memory leak as follows:
unreferenced object 0xffff88800d584000 (size 8400):
comm "kworker/0:2", pid 3809, jiffies 4295453055 (age 13.784s)
hex dump (first 32 bytes):
00 40 58 0d 80 88 ff ff 00 40 58 0d 80 88 ff ff .@X......@X.....
00 00 00 00 00 00 00 00 00 00 00 00 ad 4e ad de .............N..
backtrace:
[<000000000d47f947>] kmalloc_order_trace+0x19/0x110 mm/slab_common.c:960
[<000000008548ac68>] ftdi_elan_probe+0x8c/0x880 drivers/usb/misc/ftdi-elan.c:2647
[<000000007f73e422>] usb_probe_interface+0x31b/0x800 drivers/usb/core/driver.c:396
[<00000000fe8d07fc>] really_probe+0x299/0xc30 drivers/base/dd.c:517
[<0000000005da7d32>] __driver_probe_device+0x357/0x500 drivers/base/dd.c:751
[<000000003c2c9579>] driver_probe_device+0x4e/0x140 drivers/base/dd.c:781
Fix it by freeing 'ftdi' after nobody use it.
Fixes: a5c66e4b2418 ("USB: ftdi-elan: client driver for ELAN Uxxx adapters")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20211217083428.2441-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/misc/ftdi-elan.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 424ff12f3b51f..0231c0cc6481d 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -206,6 +206,7 @@ static void ftdi_elan_delete(struct kref *kref)
mutex_unlock(&ftdi_module_lock);
kfree(ftdi->bulk_in_buffer);
ftdi->bulk_in_buffer = NULL;
+ kfree(ftdi);
}
static void ftdi_elan_put_kref(struct usb_ftdi *ftdi)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 057/186] x86/mce/inject: Avoid out-of-bounds write when setting flags
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (55 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 056/186] usb: ftdi-elan: fix memory leak on device disconnect Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 058/186] pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region() Greg Kroah-Hartman
` (129 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Zixun, Borislav Petkov, Sasha Levin
From: Zhang Zixun <zhang133010@icloud.com>
[ Upstream commit de768416b203ac84e02a757b782a32efb388476f ]
A contrived zero-length write, for example, by using write(2):
...
ret = write(fd, str, 0);
...
to the "flags" file causes:
BUG: KASAN: stack-out-of-bounds in flags_write
Write of size 1 at addr ffff888019be7ddf by task writefile/3787
CPU: 4 PID: 3787 Comm: writefile Not tainted 5.16.0-rc7+ #12
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
due to accessing buf one char before its start.
Prevent such out-of-bounds access.
[ bp: Productize into a proper patch. Link below is the next best
thing because the original mail didn't get archived on lore. ]
Fixes: 0451d14d0561 ("EDAC, mce_amd_inj: Modify flags attribute to use string arguments")
Signed-off-by: Zhang Zixun <zhang133010@icloud.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/linux-edac/YcnePfF1OOqoQwrX@zn.tnic/
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kernel/cpu/mcheck/mce-inject.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index 94aa91b09c288..2778b66aee8fc 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c
@@ -354,7 +354,7 @@ static ssize_t flags_write(struct file *filp, const char __user *ubuf,
char buf[MAX_FLAG_OPT_SIZE], *__buf;
int err;
- if (cnt > MAX_FLAG_OPT_SIZE)
+ if (!cnt || cnt > MAX_FLAG_OPT_SIZE)
return -EINVAL;
if (copy_from_user(&buf, ubuf, cnt))
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 058/186] pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (56 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 057/186] x86/mce/inject: Avoid out-of-bounds write when setting flags Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 059/186] pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region() Greg Kroah-Hartman
` (128 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Dominik Brodowski,
Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit ca0fe0d7c35c97528bdf621fdca75f13157c27af ]
In __nonstatic_find_io_region(), pcmcia_make_resource() is assigned to
res and used in pci_bus_alloc_resource(). There is a dereference of res
in pci_bus_alloc_resource(), which could lead to a NULL pointer
dereference on failure of pcmcia_make_resource().
Fix this bug by adding a check of res.
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_PCCARD_NONSTATIC=y show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: 49b1153adfe1 ("pcmcia: move all pcmcia_resource_ops providers into one module")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
[linux@dominikbrodowski.net: Fix typo in commit message]
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pcmcia/rsrc_nonstatic.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 5ef7b46a25786..4d244014f423f 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -693,6 +693,9 @@ static struct resource *__nonstatic_find_io_region(struct pcmcia_socket *s,
unsigned long min = base;
int ret;
+ if (!res)
+ return NULL;
+
data.mask = align - 1;
data.offset = base & data.mask;
data.map = &s_data->io_db;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 059/186] pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (57 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 058/186] pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 060/186] ppp: ensure minimum packet size in ppp_write() Greg Kroah-Hartman
` (127 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Dominik Brodowski,
Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit 977d2e7c63c3d04d07ba340b39987742e3241554 ]
In nonstatic_find_mem_region(), pcmcia_make_resource() is assigned to
res and used in pci_bus_alloc_resource(). There a dereference of res
in pci_bus_alloc_resource(), which could lead to a NULL pointer
dereference on failure of pcmcia_make_resource().
Fix this bug by adding a check of res.
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_PCCARD_NONSTATIC=y show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: 49b1153adfe1 ("pcmcia: move all pcmcia_resource_ops providers into one module")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pcmcia/rsrc_nonstatic.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 4d244014f423f..2e96d9273b780 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -815,6 +815,9 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num,
unsigned long min, max;
int ret, i, j;
+ if (!res)
+ return NULL;
+
low = low || !(s->features & SS_CAP_PAGE_REGS);
data.mask = align - 1;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 060/186] ppp: ensure minimum packet size in ppp_write()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (58 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 059/186] pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 061/186] fsl/fman: Check for null pointer after calling devm_ioremap Greg Kroah-Hartman
` (126 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Paul Mackerras,
linux-ppp, syzbot, Guillaume Nault, David S. Miller, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit 44073187990d5629804ce0627525f6ea5cfef171 ]
It seems pretty clear ppp layer assumed user space
would always be kind to provide enough data
in their write() to a ppp device.
This patch makes sure user provides at least
2 bytes.
It adds PPP_PROTO_LEN macro that could replace
in net-next many occurrences of hard-coded 2 value.
I replaced only one occurrence to ease backports
to stable kernels.
The bug manifests in the following report:
BUG: KMSAN: uninit-value in ppp_send_frame+0x28d/0x27c0 drivers/net/ppp/ppp_generic.c:1740
ppp_send_frame+0x28d/0x27c0 drivers/net/ppp/ppp_generic.c:1740
__ppp_xmit_process+0x23e/0x4b0 drivers/net/ppp/ppp_generic.c:1640
ppp_xmit_process+0x1fe/0x480 drivers/net/ppp/ppp_generic.c:1661
ppp_write+0x5cb/0x5e0 drivers/net/ppp/ppp_generic.c:513
do_iter_write+0xb0c/0x1500 fs/read_write.c:853
vfs_writev fs/read_write.c:924 [inline]
do_writev+0x645/0xe00 fs/read_write.c:967
__do_sys_writev fs/read_write.c:1040 [inline]
__se_sys_writev fs/read_write.c:1037 [inline]
__x64_sys_writev+0xe5/0x120 fs/read_write.c:1037
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x44/0xae
Uninit was created at:
slab_post_alloc_hook mm/slab.h:524 [inline]
slab_alloc_node mm/slub.c:3251 [inline]
__kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0x545/0xf90 net/core/skbuff.c:426
alloc_skb include/linux/skbuff.h:1126 [inline]
ppp_write+0x11d/0x5e0 drivers/net/ppp/ppp_generic.c:501
do_iter_write+0xb0c/0x1500 fs/read_write.c:853
vfs_writev fs/read_write.c:924 [inline]
do_writev+0x645/0xe00 fs/read_write.c:967
__do_sys_writev fs/read_write.c:1040 [inline]
__se_sys_writev fs/read_write.c:1037 [inline]
__x64_sys_writev+0xe5/0x120 fs/read_write.c:1037
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x44/0xae
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linux-ppp@vger.kernel.org
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ppp/ppp_generic.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index c6e067aae9551..81a4fe9706be6 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -72,6 +72,8 @@
#define MPHDRLEN 6 /* multilink protocol header length */
#define MPHDRLEN_SSN 4 /* ditto with short sequence numbers */
+#define PPP_PROTO_LEN 2
+
/*
* An instance of /dev/ppp can be associated with either a ppp
* interface unit or a ppp channel. In both cases, file->private_data
@@ -501,6 +503,9 @@ static ssize_t ppp_write(struct file *file, const char __user *buf,
if (!pf)
return -ENXIO;
+ /* All PPP packets should start with the 2-byte protocol */
+ if (count < PPP_PROTO_LEN)
+ return -EINVAL;
ret = -ENOMEM;
skb = alloc_skb(count + pf->hdrlen, GFP_KERNEL);
if (!skb)
@@ -1564,7 +1569,7 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb)
}
++ppp->stats64.tx_packets;
- ppp->stats64.tx_bytes += skb->len - 2;
+ ppp->stats64.tx_bytes += skb->len - PPP_PROTO_LEN;
switch (proto) {
case PPP_IP:
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 061/186] fsl/fman: Check for null pointer after calling devm_ioremap
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (59 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 060/186] ppp: ensure minimum packet size in ppp_write() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 062/186] spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe Greg Kroah-Hartman
` (125 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiasheng Jiang, David S. Miller, Sasha Levin
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ Upstream commit d5a73ec96cc57cf67e51b12820fc2354e7ca46f8 ]
As the possible failure of the allocation, the devm_ioremap() may return
NULL pointer.
Take tgec_initialization() as an example.
If allocation fails, the params->base_addr will be NULL pointer and will
be assigned to tgec->regs in tgec_config().
Then it will cause the dereference of NULL pointer in set_mac_address(),
which is called by tgec_init().
Therefore, it should be better to add the sanity check after the calling
of the devm_ioremap().
Fixes: 3933961682a3 ("fsl/fman: Add FMan MAC driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/freescale/fman/mac.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index 387eb4a88b723..3221a54202638 100644
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -96,14 +96,17 @@ static void mac_exception(void *handle, enum fman_mac_exceptions ex)
__func__, ex);
}
-static void set_fman_mac_params(struct mac_device *mac_dev,
- struct fman_mac_params *params)
+static int set_fman_mac_params(struct mac_device *mac_dev,
+ struct fman_mac_params *params)
{
struct mac_priv_s *priv = mac_dev->priv;
params->base_addr = (typeof(params->base_addr))
devm_ioremap(priv->dev, mac_dev->res->start,
resource_size(mac_dev->res));
+ if (!params->base_addr)
+ return -ENOMEM;
+
memcpy(¶ms->addr, mac_dev->addr, sizeof(mac_dev->addr));
params->max_speed = priv->max_speed;
params->phy_if = priv->phy_if;
@@ -114,6 +117,8 @@ static void set_fman_mac_params(struct mac_device *mac_dev,
params->event_cb = mac_exception;
params->dev_id = mac_dev;
params->internal_phy_node = priv->internal_phy_node;
+
+ return 0;
}
static int tgec_initialization(struct mac_device *mac_dev)
@@ -125,7 +130,9 @@ static int tgec_initialization(struct mac_device *mac_dev)
priv = mac_dev->priv;
- set_fman_mac_params(mac_dev, ¶ms);
+ err = set_fman_mac_params(mac_dev, ¶ms);
+ if (err)
+ goto _return;
mac_dev->fman_mac = tgec_config(¶ms);
if (!mac_dev->fman_mac) {
@@ -171,7 +178,9 @@ static int dtsec_initialization(struct mac_device *mac_dev)
priv = mac_dev->priv;
- set_fman_mac_params(mac_dev, ¶ms);
+ err = set_fman_mac_params(mac_dev, ¶ms);
+ if (err)
+ goto _return;
mac_dev->fman_mac = dtsec_config(¶ms);
if (!mac_dev->fman_mac) {
@@ -220,7 +229,9 @@ static int memac_initialization(struct mac_device *mac_dev)
priv = mac_dev->priv;
- set_fman_mac_params(mac_dev, ¶ms);
+ err = set_fman_mac_params(mac_dev, ¶ms);
+ if (err)
+ goto _return;
if (priv->max_speed == SPEED_10000)
params.phy_if = PHY_INTERFACE_MODE_XGMII;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 062/186] spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (60 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 061/186] fsl/fman: Check for null pointer after calling devm_ioremap Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 063/186] tpm: add request_locality before write TPM_INT_ENABLE Greg Kroah-Hartman
` (124 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Mark Brown, Sasha Levin
From: Miaoqian Lin <linmq006@gmail.com>
[ Upstream commit 69c1b87516e327a60b39f96b778fe683259408bf ]
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().
Add missing pm_runtime_disable() for meson_spifc_probe.
Fixes: c3e4bc5434d2 ("spi: meson: Add support for Amlogic Meson SPIFC")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220107075424.7774-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-meson-spifc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-meson-spifc.c b/drivers/spi/spi-meson-spifc.c
index 616566e793c62..28975b6f054fa 100644
--- a/drivers/spi/spi-meson-spifc.c
+++ b/drivers/spi/spi-meson-spifc.c
@@ -357,6 +357,7 @@ static int meson_spifc_probe(struct platform_device *pdev)
return 0;
out_clk:
clk_disable_unprepare(spifc->clk);
+ pm_runtime_disable(spifc->dev);
out_err:
spi_master_put(master);
return ret;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 063/186] tpm: add request_locality before write TPM_INT_ENABLE
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (61 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 062/186] spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 064/186] can: softing: softing_startstop(): fix set but not used variable warning Greg Kroah-Hartman
` (123 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chen Jun, Jarkko Sakkinen, Sasha Levin
From: Chen Jun <chenjun102@huawei.com>
[ Upstream commit 0ef333f5ba7f24f5d8478425c163d3097f1c7afd ]
Locality is not appropriately requested before writing the int mask.
Add the missing boilerplate.
Fixes: e6aef069b6e9 ("tpm_tis: convert to using locality callbacks")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/tpm/tpm_tis_core.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 1ac9abcdad52a..9e42943f6a599 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -809,7 +809,15 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
intmask |= TPM_INTF_CMD_READY_INT | TPM_INTF_LOCALITY_CHANGE_INT |
TPM_INTF_DATA_AVAIL_INT | TPM_INTF_STS_VALID_INT;
intmask &= ~TPM_GLOBAL_INT_ENABLE;
+
+ rc = request_locality(chip, 0);
+ if (rc < 0) {
+ rc = -ENODEV;
+ goto out_err;
+ }
+
tpm_tis_write32(priv, TPM_INT_ENABLE(priv->locality), intmask);
+ release_locality(chip, 0);
rc = tpm2_probe(chip);
if (rc)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 064/186] can: softing: softing_startstop(): fix set but not used variable warning
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (62 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 063/186] tpm: add request_locality before write TPM_INT_ENABLE Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 065/186] can: xilinx_can: xcan_probe(): check for error irq Greg Kroah-Hartman
` (122 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kurt Van Dijck, Marc Kleine-Budde,
Sasha Levin
From: Marc Kleine-Budde <mkl@pengutronix.de>
[ Upstream commit 370d988cc529598ebaec6487d4f84c2115dc696b ]
In the function softing_startstop() the variable error_reporting is
assigned but not used. The code that uses this variable is commented
out. Its stated that the functionality is not finally verified.
To fix the warning:
| drivers/net/can/softing/softing_fw.c:424:9: error: variable 'error_reporting' set but not used [-Werror,-Wunused-but-set-variable]
remove the comment, activate the code, but add a "0 &&" to the if
expression and rely on the optimizer rather than the preprocessor to
remove the code.
Link: https://lore.kernel.org/all/20220109103126.1872833-1-mkl@pengutronix.de
Fixes: 03fd3cf5a179 ("can: add driver for Softing card")
Cc: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/can/softing/softing_fw.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c
index aac58ce6e371a..209eddeb822e5 100644
--- a/drivers/net/can/softing/softing_fw.c
+++ b/drivers/net/can/softing/softing_fw.c
@@ -576,18 +576,19 @@ int softing_startstop(struct net_device *dev, int up)
if (ret < 0)
goto failed;
}
- /* enable_error_frame */
- /*
+
+ /* enable_error_frame
+ *
* Error reporting is switched off at the moment since
* the receiving of them is not yet 100% verified
* This should be enabled sooner or later
- *
- if (error_reporting) {
+ */
+ if (0 && error_reporting) {
ret = softing_fct_cmd(card, 51, "enable_error_frame");
if (ret < 0)
goto failed;
}
- */
+
/* initialize interface */
iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 2]);
iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 4]);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 065/186] can: xilinx_can: xcan_probe(): check for error irq
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (63 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 064/186] can: softing: softing_startstop(): fix set but not used variable warning Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 066/186] pcmcia: fix setting of kthread task states Greg Kroah-Hartman
` (121 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiasheng Jiang, Marc Kleine-Budde,
Sasha Levin
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ Upstream commit c6564c13dae25cd7f8e1de5127b4da4500ee5844 ]
For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().
Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq()
effectively convert that into -EINVAL, even at probe time rather than
later on. So it might be better to check just now.
Fixes: b1201e44f50b ("can: xilinx CAN controller support")
Link: https://lore.kernel.org/all/20211224021324.1447494-1-jiasheng@iscas.ac.cn
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/can/xilinx_can.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index 5a24039733efd..caab0df7b368f 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -1302,7 +1302,12 @@ static int xcan_probe(struct platform_device *pdev)
spin_lock_init(&priv->tx_lock);
/* Get IRQ for the device */
- ndev->irq = platform_get_irq(pdev, 0);
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ goto err_free;
+
+ ndev->irq = ret;
+
ndev->flags |= IFF_ECHO; /* We support local echo */
platform_set_drvdata(pdev, ndev);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 066/186] pcmcia: fix setting of kthread task states
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (64 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 065/186] can: xilinx_can: xcan_probe(): check for error irq Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 067/186] net: mcs7830: handle usb read errors properly Greg Kroah-Hartman
` (120 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Al Viro, Matthew Wilcox (Oracle),
Dominik Brodowski, Sasha Levin
From: Dominik Brodowski <linux@dominikbrodowski.net>
[ Upstream commit fbb3485f1f931102d8ba606f1c28123f5b48afa3 ]
We need to set TASK_INTERRUPTIBLE before calling kthread_should_stop().
Otherwise, kthread_stop() might see that the pccardd thread is still
in TASK_RUNNING state and fail to wake it up.
Additionally, we only need to set the state back to TASK_RUNNING if
kthread_should_stop() breaks the loop.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Fixes: d3046ba809ce ("pcmcia: fix a boot time warning in pcmcia cs code")
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pcmcia/cs.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 8c8caec3a72cc..182e5ef4ab83d 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -669,18 +669,16 @@ static int pccardd(void *__skt)
if (events || sysfs_events)
continue;
+ set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop())
break;
- set_current_state(TASK_INTERRUPTIBLE);
-
schedule();
- /* make sure we are running */
- __set_current_state(TASK_RUNNING);
-
try_to_freeze();
}
+ /* make sure we are running before we exit */
+ __set_current_state(TASK_RUNNING);
/* shut down socket, if a device is still present */
if (skt->state & SOCKET_PRESENT) {
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 067/186] net: mcs7830: handle usb read errors properly
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (65 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 066/186] pcmcia: fix setting of kthread task states Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 068/186] ext4: avoid trim error on fs with small groups Greg Kroah-Hartman
` (119 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Arnd Bergmann,
Jakub Kicinski, Sasha Levin, syzbot+003c0a286b9af5412510
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit d668769eb9c52b150753f1653f7f5a0aeb8239d2 ]
Syzbot reported uninit value in mcs7830_bind(). The problem was in
missing validation check for bytes read via usbnet_read_cmd().
usbnet_read_cmd() internally calls usb_control_msg(), that returns
number of bytes read. Code should validate that requested number of bytes
was actually read.
So, this patch adds missing size validation check inside
mcs7830_get_reg() to prevent uninit value bugs
Reported-and-tested-by: syzbot+003c0a286b9af5412510@syzkaller.appspotmail.com
Fixes: 2a36d7083438 ("USB: driver for mcs7830 (aka DeLOCK) USB ethernet adapter")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220106225716.7425-1-paskripkin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/usb/mcs7830.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 5a47e5510ca82..c0f52a622964f 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -121,8 +121,16 @@ static const char driver_name[] = "MOSCHIP usb-ethernet driver";
static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data)
{
- return usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ,
- 0x0000, index, data, size);
+ int ret;
+
+ ret = usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ,
+ 0x0000, index, data, size);
+ if (ret < 0)
+ return ret;
+ else if (ret < size)
+ return -ENODATA;
+
+ return ret;
}
static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 068/186] ext4: avoid trim error on fs with small groups
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (66 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 067/186] net: mcs7830: handle usb read errors properly Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 069/186] ALSA: jack: Add missing rwsem around snd_ctl_remove() calls Greg Kroah-Hartman
` (118 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lukas Czerner, Jan Kara,
Theodore Tso, Sasha Levin
From: Jan Kara <jack@suse.cz>
[ Upstream commit 173b6e383d2a204c9921ffc1eca3b87aa2106c33 ]
A user reported FITRIM ioctl failing for him on ext4 on some devices
without apparent reason. After some debugging we've found out that
these devices (being LVM volumes) report rather large discard
granularity of 42MB and the filesystem had 1k blocksize and thus group
size of 8MB. Because ext4 FITRIM implementation puts discard
granularity into minlen, ext4_trim_fs() declared the trim request as
invalid. However just silently doing nothing seems to be a more
appropriate reaction to such combination of parameters since user did
not specify anything wrong.
CC: Lukas Czerner <lczerner@redhat.com>
Fixes: 5c2ed62fd447 ("ext4: Adjust minlen with discard_granularity in the FITRIM ioctl")
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20211112152202.26614-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/ioctl.c | 2 --
fs/ext4/mballoc.c | 8 ++++++++
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 6718c7ccd6314..3bd79fc4e9487 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -992,8 +992,6 @@ resizefs_out:
sizeof(range)))
return -EFAULT;
- range.minlen = max((unsigned int)range.minlen,
- q->limits.discard_granularity);
ret = ext4_trim_fs(sb, &range);
if (ret < 0)
return ret;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index c40d3c44a1d69..28bee66c5fbf0 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -5284,6 +5284,7 @@ out:
*/
int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
{
+ struct request_queue *q = bdev_get_queue(sb->s_bdev);
struct ext4_group_info *grp;
ext4_group_t group, first_group, last_group;
ext4_grpblk_t cnt = 0, first_cluster, last_cluster;
@@ -5302,6 +5303,13 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
start >= max_blks ||
range->len < sb->s_blocksize)
return -EINVAL;
+ /* No point to try to trim less than discard granularity */
+ if (range->minlen < q->limits.discard_granularity) {
+ minlen = EXT4_NUM_B2C(EXT4_SB(sb),
+ q->limits.discard_granularity >> sb->s_blocksize_bits);
+ if (minlen > EXT4_CLUSTERS_PER_GROUP(sb))
+ goto out;
+ }
if (end >= max_blks)
end = max_blks - 1;
if (end <= first_data_blk)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 069/186] ALSA: jack: Add missing rwsem around snd_ctl_remove() calls
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (67 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 068/186] ext4: avoid trim error on fs with small groups Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 070/186] ALSA: PCM: " Greg Kroah-Hartman
` (117 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai, Sasha Levin
From: Takashi Iwai <tiwai@suse.de>
[ Upstream commit 06764dc931848c3a9bc01a63bbf76a605408bb54 ]
snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation). This patch add the missing
rwsem calls around it.
Fixes: 9058cbe1eed2 ("ALSA: jack: implement kctl creating for jack devices")
Link: https://lore.kernel.org/r/20211116071314.15065-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/core/jack.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/core/jack.c b/sound/core/jack.c
index 5ddf81f091fa9..36cfe1c54109d 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -68,10 +68,13 @@ static int snd_jack_dev_free(struct snd_device *device)
struct snd_card *card = device->card;
struct snd_jack_kctl *jack_kctl, *tmp_jack_kctl;
+ down_write(&card->controls_rwsem);
list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) {
list_del_init(&jack_kctl->list);
snd_ctl_remove(card, jack_kctl->kctl);
}
+ up_write(&card->controls_rwsem);
+
if (jack->private_free)
jack->private_free(jack);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 070/186] ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (68 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 069/186] ALSA: jack: Add missing rwsem around snd_ctl_remove() calls Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 071/186] ALSA: hda: " Greg Kroah-Hartman
` (116 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai, Sasha Levin
From: Takashi Iwai <tiwai@suse.de>
[ Upstream commit 5471e9762e1af4b7df057a96bfd46cc250979b88 ]
snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation). This patch add the missing
rwsem calls around it.
Fixes: a8ff48cb7083 ("ALSA: pcm: Free chmap at PCM free callback, too")
Link: https://lore.kernel.org/r/20211116071314.15065-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/core/pcm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 2b5caa8dea2e2..a228bf9331102 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -875,7 +875,11 @@ EXPORT_SYMBOL(snd_pcm_new_internal);
static void free_chmap(struct snd_pcm_str *pstr)
{
if (pstr->chmap_kctl) {
- snd_ctl_remove(pstr->pcm->card, pstr->chmap_kctl);
+ struct snd_card *card = pstr->pcm->card;
+
+ down_write(&card->controls_rwsem);
+ snd_ctl_remove(card, pstr->chmap_kctl);
+ up_write(&card->controls_rwsem);
pstr->chmap_kctl = NULL;
}
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 071/186] ALSA: hda: Add missing rwsem around snd_ctl_remove() calls
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (69 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 070/186] ALSA: PCM: " Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 072/186] RDMA/hns: Validate the pkey index Greg Kroah-Hartman
` (115 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai, Sasha Levin
From: Takashi Iwai <tiwai@suse.de>
[ Upstream commit 80bd64af75b4bb11c0329bc66c35da2ddfb66d88 ]
snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation). This patch add the missing
rwsem calls around it.
Fixes: d13bd412dce2 ("ALSA: hda - Manage kcontrol lists")
Link: https://lore.kernel.org/r/20211116071314.15065-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/pci/hda/hda_codec.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index a56f018d586f5..8ec73955170b4 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1680,8 +1680,11 @@ void snd_hda_ctls_clear(struct hda_codec *codec)
{
int i;
struct hda_nid_item *items = codec->mixers.list;
+
+ down_write(&codec->card->controls_rwsem);
for (i = 0; i < codec->mixers.used; i++)
snd_ctl_remove(codec->card, items[i].kctl);
+ up_write(&codec->card->controls_rwsem);
snd_array_free(&codec->mixers);
snd_array_free(&codec->nids);
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 072/186] RDMA/hns: Validate the pkey index
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (70 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 071/186] ALSA: hda: " Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 073/186] powerpc/prom_init: Fix improper check of prom_getprop() Greg Kroah-Hartman
` (114 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kamal Heib, Jason Gunthorpe, Sasha Levin
From: Kamal Heib <kamalheib1@gmail.com>
[ Upstream commit 2a67fcfa0db6b4075515bd23497750849b88850f ]
Before query pkey, make sure that the queried index is valid.
Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211117145954.123893-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hns/hns_roce_main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index d9777b662eba9..6f64dc5262c0d 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -294,6 +294,9 @@ static int hns_roce_query_gid(struct ib_device *ib_dev, u8 port_num, int index,
static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index,
u16 *pkey)
{
+ if (index > 0)
+ return -EINVAL;
+
*pkey = PKEY_ID;
return 0;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 073/186] powerpc/prom_init: Fix improper check of prom_getprop()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (71 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 072/186] RDMA/hns: Validate the pkey index Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 074/186] ALSA: oss: fix compile error when OSS_DEBUG is enabled Greg Kroah-Hartman
` (113 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peiwei Hu, Michael Ellerman, Sasha Levin
From: Peiwei Hu <jlu.hpw@foxmail.com>
[ Upstream commit 869fb7e5aecbc163003f93f36dcc26d0554319f6 ]
prom_getprop() can return PROM_ERROR. Binary operator can not identify
it.
Fixes: 94d2dde738a5 ("[POWERPC] Efika: prune fixups and make them more carefull")
Signed-off-by: Peiwei Hu <jlu.hpw@foxmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/tencent_BA28CC6897B7C95A92EB8C580B5D18589105@qq.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/prom_init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index f8782c7ef50f1..7f049a60747e9 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2774,7 +2774,7 @@ static void __init fixup_device_tree_efika_add_phy(void)
/* Check if the phy-handle property exists - bail if it does */
rv = prom_getprop(node, "phy-handle", prop, sizeof(prop));
- if (!rv)
+ if (rv <= 0)
return;
/*
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 074/186] ALSA: oss: fix compile error when OSS_DEBUG is enabled
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (72 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 073/186] powerpc/prom_init: Fix improper check of prom_getprop() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 075/186] char/mwave: Adjust io port register size Greg Kroah-Hartman
` (112 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bixuan Cui, Takashi Iwai, Sasha Levin
From: Bixuan Cui <cuibixuan@linux.alibaba.com>
[ Upstream commit 8e7daf318d97f25e18b2fc7eb5909e34cd903575 ]
Fix compile error when OSS_DEBUG is enabled:
sound/core/oss/pcm_oss.c: In function 'snd_pcm_oss_set_trigger':
sound/core/oss/pcm_oss.c:2055:10: error: 'substream' undeclared (first
use in this function); did you mean 'csubstream'?
pcm_dbg(substream->pcm, "pcm_oss: trigger = 0x%x\n", trigger);
^
Fixes: 61efcee8608c ("ALSA: oss: Use standard printk helpers")
Signed-off-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Link: https://lore.kernel.org/r/1638349134-110369-1-git-send-email-cuibixuan@linux.alibaba.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/core/oss/pcm_oss.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index b092f257c1c69..87806dab321a3 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -2070,7 +2070,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr
int err, cmd;
#ifdef OSS_DEBUG
- pcm_dbg(substream->pcm, "pcm_oss: trigger = 0x%x\n", trigger);
+ pr_debug("pcm_oss: trigger = 0x%x\n", trigger);
#endif
psubstream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 075/186] char/mwave: Adjust io port register size
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (73 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 074/186] ALSA: oss: fix compile error when OSS_DEBUG is enabled Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 076/186] uio: uio_dmem_genirq: Catch the Exception Greg Kroah-Hartman
` (111 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Kees Cook, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit f5912cc19acd7c24b2dbf65a6340bf194244f085 ]
Using MKWORD() on a byte-sized variable results in OOB read. Expand the
size of the reserved area so both MKWORD and MKBYTE continue to work
without overflow. Silences this warning on a -Warray-bounds build:
drivers/char/mwave/3780i.h:346:22: error: array subscript 'short unsigned int[0]' is partly outside array bounds of 'DSP_ISA_SLAVE_CONTROL[1]' [-Werror=array-bounds]
346 | #define MKWORD(var) (*((unsigned short *)(&var)))
| ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/char/mwave/3780i.h:356:40: note: in definition of macro 'OutWordDsp'
356 | #define OutWordDsp(index,value) outw(value,usDspBaseIO+index)
| ^~~~~
drivers/char/mwave/3780i.c:373:41: note: in expansion of macro 'MKWORD'
373 | OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
| ^~~~~~
drivers/char/mwave/3780i.c:358:31: note: while referencing 'rSlaveControl'
358 | DSP_ISA_SLAVE_CONTROL rSlaveControl;
| ^~~~~~~~~~~~~
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20211203084206.3104326-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/mwave/3780i.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/mwave/3780i.h b/drivers/char/mwave/3780i.h
index 9ccb6b270b071..95164246afd1a 100644
--- a/drivers/char/mwave/3780i.h
+++ b/drivers/char/mwave/3780i.h
@@ -68,7 +68,7 @@ typedef struct {
unsigned char ClockControl:1; /* RW: Clock control: 0=normal, 1=stop 3780i clocks */
unsigned char SoftReset:1; /* RW: Soft reset 0=normal, 1=soft reset active */
unsigned char ConfigMode:1; /* RW: Configuration mode, 0=normal, 1=config mode */
- unsigned char Reserved:5; /* 0: Reserved */
+ unsigned short Reserved:13; /* 0: Reserved */
} DSP_ISA_SLAVE_CONTROL;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 076/186] uio: uio_dmem_genirq: Catch the Exception
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (74 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 075/186] char/mwave: Adjust io port register size Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 077/186] scsi: ufs: Fix race conditions related to driver data Greg Kroah-Hartman
` (110 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jiasheng Jiang, Sasha Levin
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ Upstream commit eec91694f927d1026974444eb6a3adccd4f1cbc2 ]
The return value of dma_set_coherent_mask() is not always 0.
To catch the exception in case that dma is not support the mask.
Fixes: 0a0c3b5a24bd ("Add new uio device for dynamic memory allocation")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211204000326.1592687-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/uio/uio_dmem_genirq.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index a00b4aee6c799..a31b9d5260ca0 100644
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -194,7 +194,11 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
goto bad0;
}
- dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+ ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret) {
+ dev_err(&pdev->dev, "DMA enable failed\n");
+ return ret;
+ }
priv->uioinfo = uioinfo;
spin_lock_init(&priv->lock);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 077/186] scsi: ufs: Fix race conditions related to driver data
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (75 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 076/186] uio: uio_dmem_genirq: Catch the Exception Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 078/186] RDMA/core: Let ib_find_gid() continue search even after empty entry Greg Kroah-Hartman
` (109 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexey Dobriyan, Bean Huo,
Bart Van Assche, Martin K. Petersen, Sasha Levin
From: Bart Van Assche <bvanassche@acm.org>
[ Upstream commit 21ad0e49085deb22c094f91f9da57319a97188e4 ]
The driver data pointer must be set before any callbacks are registered
that use that pointer. Hence move the initialization of that pointer from
after the ufshcd_init() call to inside ufshcd_init().
Link: https://lore.kernel.org/r/20211203231950.193369-7-bvanassche@acm.org
Fixes: 3b1d05807a9a ("[SCSI] ufs: Segregate PCI Specific Code")
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/ufs/tc-dwc-g210-pci.c | 1 -
drivers/scsi/ufs/ufshcd-pltfrm.c | 2 --
drivers/scsi/ufs/ufshcd.c | 7 +++++++
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/tc-dwc-g210-pci.c b/drivers/scsi/ufs/tc-dwc-g210-pci.c
index 325d5e14fc0d8..a8b50fc1960d1 100644
--- a/drivers/scsi/ufs/tc-dwc-g210-pci.c
+++ b/drivers/scsi/ufs/tc-dwc-g210-pci.c
@@ -138,7 +138,6 @@ tc_dwc_g210_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return err;
}
- pci_set_drvdata(pdev, hba);
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_allow(&pdev->dev);
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 8992354d4e2c7..6f076ff35dd38 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -348,8 +348,6 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
goto dealloc_host;
}
- platform_set_drvdata(pdev, hba);
-
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index f46fa8a2f6585..694c0fc31fbf7 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7904,6 +7904,13 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
struct Scsi_Host *host = hba->host;
struct device *dev = hba->dev;
+ /*
+ * dev_set_drvdata() must be called before any callbacks are registered
+ * that use dev_get_drvdata() (frequency scaling, clock scaling, hwmon,
+ * sysfs).
+ */
+ dev_set_drvdata(dev, hba);
+
if (!mmio_base) {
dev_err(hba->dev,
"Invalid memory reference for mmio_base is NULL\n");
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 078/186] RDMA/core: Let ib_find_gid() continue search even after empty entry
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (76 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 077/186] scsi: ufs: Fix race conditions related to driver data Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 079/186] dmaengine: pxa/mmp: stop referencing config->slave_id Greg Kroah-Hartman
` (108 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Avihai Horon, Mark Zhang,
Leon Romanovsky, Jason Gunthorpe, Sasha Levin
From: Avihai Horon <avihaih@nvidia.com>
[ Upstream commit 483d805191a23191f8294bbf9b4e94836f5d92e4 ]
Currently, ib_find_gid() will stop searching after encountering the first
empty GID table entry. This behavior is wrong since neither IB nor RoCE
spec enforce tightly packed GID tables.
For example, when a valid GID entry exists at index N, and if a GID entry
is empty at index N-1, ib_find_gid() will fail to find the valid entry.
Fix it by making ib_find_gid() continue searching even after encountering
missing entries.
Fixes: 5eb620c81ce3 ("IB/core: Add helpers for uncached GID and P_Key searches")
Link: https://lore.kernel.org/r/e55d331b96cecfc2cf19803d16e7109ea966882d.1639055490.git.leonro@nvidia.com
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/core/device.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 6b0d1d8609cad..b230f156a9964 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -1075,7 +1075,8 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
for (i = 0; i < device->port_immutable[port].gid_tbl_len; ++i) {
ret = ib_query_gid(device, port, i, &tmp_gid, NULL);
if (ret)
- return ret;
+ continue;
+
if (!memcmp(&tmp_gid, gid, sizeof *gid)) {
*port_num = port;
if (index)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 079/186] dmaengine: pxa/mmp: stop referencing config->slave_id
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (77 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 078/186] RDMA/core: Let ib_find_gid() continue search even after empty entry Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 080/186] iommu/iova: Fix race between FQ timeout and teardown Greg Kroah-Hartman
` (107 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Mark Brown,
Vinod Koul, Sasha Levin
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 134c37fa250a87a7e77c80a7c59ae16c462e46e0 ]
The last driver referencing the slave_id on Marvell PXA and MMP platforms
was the SPI driver, but this stopped doing so a long time ago, so the
TODO from the earlier patch can no be removed.
Fixes: b729bf34535e ("spi/pxa2xx: Don't use slave_id of dma_slave_config")
Fixes: 13b3006b8ebd ("dma: mmp_pdma: add filter function")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211122222203.4103644-7-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/dma/mmp_pdma.c | 6 ------
drivers/dma/pxa_dma.c | 7 -------
2 files changed, 13 deletions(-)
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index eb3a1f42ab065..e8b2d3e31de80 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -722,12 +722,6 @@ static int mmp_pdma_config(struct dma_chan *dchan,
chan->dir = cfg->direction;
chan->dev_addr = addr;
- /* FIXME: drivers should be ported over to use the filter
- * function. Once that's done, the following two lines can
- * be removed.
- */
- if (cfg->slave_id)
- chan->drcmr = cfg->slave_id;
return 0;
}
diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
index b53fb618bbf6b..99a8ff130ad51 100644
--- a/drivers/dma/pxa_dma.c
+++ b/drivers/dma/pxa_dma.c
@@ -956,13 +956,6 @@ static void pxad_get_config(struct pxad_chan *chan,
*dcmd |= PXA_DCMD_BURST16;
else if (maxburst == 32)
*dcmd |= PXA_DCMD_BURST32;
-
- /* FIXME: drivers should be ported over to use the filter
- * function. Once that's done, the following two lines can
- * be removed.
- */
- if (chan->cfg.slave_id)
- chan->drcmr = chan->cfg.slave_id;
}
static struct dma_async_tx_descriptor *
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 080/186] iommu/iova: Fix race between FQ timeout and teardown
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (78 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 079/186] dmaengine: pxa/mmp: stop referencing config->slave_id Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 081/186] ASoC: samsung: idma: Check of ioremap return value Greg Kroah-Hartman
` (106 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, John Garry, Xiongfeng Wang,
Robin Murphy, Joerg Roedel, Sasha Levin
From: Xiongfeng Wang <wangxiongfeng2@huawei.com>
[ Upstream commit d7061627d701c90e1cac1e1e60c45292f64f3470 ]
It turns out to be possible for hotplugging out a device to reach the
stage of tearing down the device's group and default domain before the
domain's flush queue has drained naturally. At this point, it is then
possible for the timeout to expire just before the del_timer() call
in free_iova_flush_queue(), such that we then proceed to free the FQ
resources while fq_flush_timeout() is still accessing them on another
CPU. Crashes due to this have been observed in the wild while removing
NVMe devices.
Close the race window by using del_timer_sync() to safely wait for any
active timeout handler to finish before we start to free things. We
already avoid any locking in free_iova_flush_queue() since the FQ is
supposed to be inactive anyway, so the potential deadlock scenario does
not apply.
Fixes: 9a005a800ae8 ("iommu/iova: Add flush timer")
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
[ rm: rewrite commit message ]
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/0a365e5b07f14b7344677ad6a9a734966a8422ce.1639753638.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/iova.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 2c97d2552c5bd..ebee9e191b3ee 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -68,8 +68,7 @@ static void free_iova_flush_queue(struct iova_domain *iovad)
if (!has_iova_flush_queue(iovad))
return;
- if (timer_pending(&iovad->fq_timer))
- del_timer(&iovad->fq_timer);
+ del_timer_sync(&iovad->fq_timer);
fq_destroy_all_entries(iovad);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 081/186] ASoC: samsung: idma: Check of ioremap return value
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (79 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 080/186] iommu/iova: Fix race between FQ timeout and teardown Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 082/186] misc: lattice-ecp3-config: Fix task hung when firmware load failed Greg Kroah-Hartman
` (105 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiasheng Jiang, Krzysztof Kozlowski,
Mark Brown, Sasha Levin
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
[ Upstream commit 3ecb46755eb85456b459a1a9f952c52986bce8ec ]
Because of the potential failure of the ioremap(), the buf->area could
be NULL.
Therefore, we need to check it and return -ENOMEM in order to transfer
the error.
Fixes: f09aecd50f39 ("ASoC: SAMSUNG: Add I2S0 internal dma driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211228034026.1659385-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/samsung/idma.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index a635df61f928c..2a6ffb2abb338 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -369,6 +369,8 @@ static int preallocate_idma_buffer(struct snd_pcm *pcm, int stream)
buf->addr = idma.lp_tx_addr;
buf->bytes = idma_hardware.buffer_bytes_max;
buf->area = (unsigned char * __force)ioremap(buf->addr, buf->bytes);
+ if (!buf->area)
+ return -ENOMEM;
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 082/186] misc: lattice-ecp3-config: Fix task hung when firmware load failed
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (80 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 081/186] ASoC: samsung: idma: Check of ioremap return value Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 083/186] mips: lantiq: add support for clk_set_parent() Greg Kroah-Hartman
` (104 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wei Yongjun, Sasha Levin
From: Wei Yongjun <weiyongjun1@huawei.com>
[ Upstream commit fcee5ce50bdb21116711e38635e3865594af907e ]
When firmware load failed, kernel report task hung as follows:
INFO: task xrun:5191 blocked for more than 147 seconds.
Tainted: G W 5.16.0-rc5-next-20211220+ #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:xrun state:D stack: 0 pid: 5191 ppid: 270 flags:0x00000004
Call Trace:
__schedule+0xc12/0x4b50 kernel/sched/core.c:4986
schedule+0xd7/0x260 kernel/sched/core.c:6369 (discriminator 1)
schedule_timeout+0x7aa/0xa80 kernel/time/timer.c:1857
wait_for_completion+0x181/0x290 kernel/sched/completion.c:85
lattice_ecp3_remove+0x32/0x40 drivers/misc/lattice-ecp3-config.c:221
spi_remove+0x72/0xb0 drivers/spi/spi.c:409
lattice_ecp3_remove() wait for signals from firmware loading, but when
load failed, firmware_load() does not send this signal. This cause
device remove hung. Fix it by sending signal even if load failed.
Fixes: 781551df57c7 ("misc: Add Lattice ECP3 FPGA configuration via SPI")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20211228125522.3122284-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/misc/lattice-ecp3-config.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/misc/lattice-ecp3-config.c b/drivers/misc/lattice-ecp3-config.c
index 626fdcaf25101..645d26536114f 100644
--- a/drivers/misc/lattice-ecp3-config.c
+++ b/drivers/misc/lattice-ecp3-config.c
@@ -81,12 +81,12 @@ static void firmware_load(const struct firmware *fw, void *context)
if (fw == NULL) {
dev_err(&spi->dev, "Cannot load firmware, aborting\n");
- return;
+ goto out;
}
if (fw->size == 0) {
dev_err(&spi->dev, "Error: Firmware size is 0!\n");
- return;
+ goto out;
}
/* Fill dummy data (24 stuffing bits for commands) */
@@ -108,7 +108,7 @@ static void firmware_load(const struct firmware *fw, void *context)
dev_err(&spi->dev,
"Error: No supported FPGA detected (JEDEC_ID=%08x)!\n",
jedec_id);
- return;
+ goto out;
}
dev_info(&spi->dev, "FPGA %s detected\n", ecp3_dev[i].name);
@@ -121,7 +121,7 @@ static void firmware_load(const struct firmware *fw, void *context)
buffer = kzalloc(fw->size + 8, GFP_KERNEL);
if (!buffer) {
dev_err(&spi->dev, "Error: Can't allocate memory!\n");
- return;
+ goto out;
}
/*
@@ -160,7 +160,7 @@ static void firmware_load(const struct firmware *fw, void *context)
"Error: Timeout waiting for FPGA to clear (status=%08x)!\n",
status);
kfree(buffer);
- return;
+ goto out;
}
dev_info(&spi->dev, "Configuring the FPGA...\n");
@@ -186,7 +186,7 @@ static void firmware_load(const struct firmware *fw, void *context)
release_firmware(fw);
kfree(buffer);
-
+out:
complete(&data->fw_loaded);
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 083/186] mips: lantiq: add support for clk_set_parent()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (81 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 082/186] misc: lattice-ecp3-config: Fix task hung when firmware load failed Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 084/186] mips: bcm63xx: " Greg Kroah-Hartman
` (103 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, kernel test robot,
Jonathan Cameron, Thomas Bogendoerfer, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 76f66dfd60dc5d2f9dec22d99091fea1035c5d03 ]
Provide a simple implementation of clk_set_parent() in the lantiq
subarch so that callers of it will build without errors.
Fixes these build errors:
ERROR: modpost: "clk_set_parent" [sound/soc/jz4740/snd-soc-jz4740-i2s.ko] undefined!
ERROR: modpost: "clk_set_parent" [sound/soc/atmel/snd-soc-atmel-i2s.ko] undefined!
Fixes: 171bb2f19ed6 ("MIPS: Lantiq: Add initial support for Lantiq SoCs")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
--to=linux-mips@vger.kernel.org --cc="John Crispin <john@phrozen.org>" --cc="Jonathan Cameron <jic23@kernel.org>" --cc="Russell King <linux@armlinux.org.uk>" --cc="Andy Shevchenko <andy.shevchenko@gmail.com>" --cc=alsa-devel@alsa-project.org --to="Thomas Bogendoerfer <tsbogend@alpha.franken.de>"
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/lantiq/clk.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index a8e309dcd38d7..f5fab99d1751c 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -166,6 +166,12 @@ struct clk *clk_get_parent(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_parent);
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
static inline u32 get_counter_resolution(void)
{
u32 res;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 084/186] mips: bcm63xx: add support for clk_set_parent()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (82 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 083/186] mips: lantiq: add support for clk_set_parent() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 085/186] RDMA/cxgb4: Set queue pair state when being queried Greg Kroah-Hartman
` (102 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Jonathan Cameron,
Florian Fainelli, Thomas Bogendoerfer, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 6f03055d508ff4feb8db02ba3df9303a1db8d381 ]
The MIPS BMC63XX subarch does not provide/support clk_set_parent().
This causes build errors in a few drivers, so add a simple implementation
of that function so that callers of it will build without errors.
Fixes these build errors:
ERROR: modpost: "clk_set_parent" [sound/soc/jz4740/snd-soc-jz4740-i2s.ko] undefined!
ERROR: modpost: "clk_set_parent" [sound/soc/atmel/snd-soc-atmel-i2s.ko] undefined!
Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs." )
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/bcm63xx/clk.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index d2a5054b0492b..73f2534b9676d 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -343,6 +343,12 @@ struct clk *clk_get_parent(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_parent);
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
unsigned long clk_get_rate(struct clk *clk)
{
if (!clk)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 085/186] RDMA/cxgb4: Set queue pair state when being queried
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (83 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 084/186] mips: bcm63xx: " Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 086/186] Bluetooth: Fix debugfs entry leak in hci_register_dev() Greg Kroah-Hartman
` (101 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kamal Heib, Leon Romanovsky,
Jason Gunthorpe, Sasha Levin
From: Kamal Heib <kamalheib1@gmail.com>
[ Upstream commit e375b9c92985e409c4bb95dd43d34915ea7f5e28 ]
The API for ib_query_qp requires the driver to set cur_qp_state on return,
add the missing set.
Fixes: 67bbc05512d8 ("RDMA/cxgb4: Add query_qp support")
Link: https://lore.kernel.org/r/20211220152530.60399-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/cxgb4/qp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 3255615807299..225d4466fcb24 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -2115,6 +2115,7 @@ int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
memset(attr, 0, sizeof *attr);
memset(init_attr, 0, sizeof *init_attr);
attr->qp_state = to_ib_qp_state(qhp->attr.state);
+ attr->cur_qp_state = to_ib_qp_state(qhp->attr.state);
init_attr->cap.max_send_wr = qhp->attr.sq_num_entries;
init_attr->cap.max_recv_wr = qhp->attr.rq_num_entries;
init_attr->cap.max_send_sge = qhp->attr.sq_max_sges;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 086/186] Bluetooth: Fix debugfs entry leak in hci_register_dev()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (84 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 085/186] RDMA/cxgb4: Set queue pair state when being queried Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 087/186] fs: dlm: filter user dlm messages for kernel locks Greg Kroah-Hartman
` (100 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wei Yongjun, Marcel Holtmann, Sasha Levin
From: Wei Yongjun <weiyongjun1@huawei.com>
[ Upstream commit 5a4bb6a8e981d3d0d492aa38412ee80b21033177 ]
Fault injection test report debugfs entry leak as follows:
debugfs: Directory 'hci0' with parent 'bluetooth' already present!
When register_pm_notifier() failed in hci_register_dev(), the debugfs
create by debugfs_create_dir() do not removed in the error handing path.
Add the remove debugfs code to fix it.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/hci_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1906adfd553ad..687b4d0e4c673 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3183,6 +3183,7 @@ int hci_register_dev(struct hci_dev *hdev)
return id;
err_wqueue:
+ debugfs_remove_recursive(hdev->debugfs);
destroy_workqueue(hdev->workqueue);
destroy_workqueue(hdev->req_workqueue);
err:
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 087/186] fs: dlm: filter user dlm messages for kernel locks
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (85 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 086/186] Bluetooth: Fix debugfs entry leak in hci_register_dev() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 088/186] ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply Greg Kroah-Hartman
` (99 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland, Sasha Levin
From: Alexander Aring <aahringo@redhat.com>
[ Upstream commit 6c2e3bf68f3e5e5a647aa52be246d5f552d7496d ]
This patch fixes the following crash by receiving a invalid message:
[ 160.672220] ==================================================================
[ 160.676206] BUG: KASAN: user-memory-access in dlm_user_add_ast+0xc3/0x370
[ 160.679659] Read of size 8 at addr 00000000deadbeef by task kworker/u32:13/319
[ 160.681447]
[ 160.681824] CPU: 10 PID: 319 Comm: kworker/u32:13 Not tainted 5.14.0-rc2+ #399
[ 160.683472] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.14.0-1.module+el8.6.0+12648+6ede71a5 04/01/2014
[ 160.685574] Workqueue: dlm_recv process_recv_sockets
[ 160.686721] Call Trace:
[ 160.687310] dump_stack_lvl+0x56/0x6f
[ 160.688169] ? dlm_user_add_ast+0xc3/0x370
[ 160.689116] kasan_report.cold.14+0x116/0x11b
[ 160.690138] ? dlm_user_add_ast+0xc3/0x370
[ 160.690832] dlm_user_add_ast+0xc3/0x370
[ 160.691502] _receive_unlock_reply+0x103/0x170
[ 160.692241] _receive_message+0x11df/0x1ec0
[ 160.692926] ? rcu_read_lock_sched_held+0xa1/0xd0
[ 160.693700] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 160.694427] ? lock_acquire+0x175/0x400
[ 160.695058] ? do_purge.isra.51+0x200/0x200
[ 160.695744] ? lock_acquired+0x360/0x5d0
[ 160.696400] ? lock_contended+0x6a0/0x6a0
[ 160.697055] ? lock_release+0x21d/0x5e0
[ 160.697686] ? lock_is_held_type+0xe0/0x110
[ 160.698352] ? lock_is_held_type+0xe0/0x110
[ 160.699026] ? ___might_sleep+0x1cc/0x1e0
[ 160.699698] ? dlm_wait_requestqueue+0x94/0x140
[ 160.700451] ? dlm_process_requestqueue+0x240/0x240
[ 160.701249] ? down_write_killable+0x2b0/0x2b0
[ 160.701988] ? do_raw_spin_unlock+0xa2/0x130
[ 160.702690] dlm_receive_buffer+0x1a5/0x210
[ 160.703385] dlm_process_incoming_buffer+0x726/0x9f0
[ 160.704210] receive_from_sock+0x1c0/0x3b0
[ 160.704886] ? dlm_tcp_shutdown+0x30/0x30
[ 160.705561] ? lock_acquire+0x175/0x400
[ 160.706197] ? rcu_read_lock_sched_held+0xa1/0xd0
[ 160.706941] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 160.707681] process_recv_sockets+0x32/0x40
[ 160.708366] process_one_work+0x55e/0xad0
[ 160.709045] ? pwq_dec_nr_in_flight+0x110/0x110
[ 160.709820] worker_thread+0x65/0x5e0
[ 160.710423] ? process_one_work+0xad0/0xad0
[ 160.711087] kthread+0x1ed/0x220
[ 160.711628] ? set_kthread_struct+0x80/0x80
[ 160.712314] ret_from_fork+0x22/0x30
The issue is that we received a DLM message for a user lock but the
destination lock is a kernel lock. Note that the address which is trying
to derefence is 00000000deadbeef, which is in a kernel lock
lkb->lkb_astparam, this field should never be derefenced by the DLM
kernel stack. In case of a user lock lkb->lkb_astparam is lkb->lkb_ua
(memory is shared by a union field). The struct lkb_ua will be handled
by the DLM kernel stack but on a kernel lock it will contain invalid
data and ends in most likely crashing the kernel.
It can be reproduced with two cluster nodes.
node 2:
dlm_tool join test
echo "862 fooobaar 1 2 1" > /sys/kernel/debug/dlm/test_locks
echo "862 3 1" > /sys/kernel/debug/dlm/test_waiters
node 1:
dlm_tool join test
python:
foo = DLM(h_cmd=3, o_nextcmd=1, h_nodeid=1, h_lockspace=0x77222027, \
m_type=7, m_flags=0x1, m_remid=0x862, m_result=0xFFFEFFFE)
newFile = open("/sys/kernel/debug/dlm/comms/2/rawmsg", "wb")
newFile.write(bytes(foo))
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dlm/lock.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 21643d2b3fee4..8364f170fbb82 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -3974,6 +3974,14 @@ static int validate_message(struct dlm_lkb *lkb, struct dlm_message *ms)
int from = ms->m_header.h_nodeid;
int error = 0;
+ /* currently mixing of user/kernel locks are not supported */
+ if (ms->m_flags & DLM_IFL_USER && ~lkb->lkb_flags & DLM_IFL_USER) {
+ log_error(lkb->lkb_resource->res_ls,
+ "got user dlm message for a kernel lock");
+ error = -EINVAL;
+ goto out;
+ }
+
switch (ms->m_type) {
case DLM_MSG_CONVERT:
case DLM_MSG_UNLOCK:
@@ -4002,6 +4010,7 @@ static int validate_message(struct dlm_lkb *lkb, struct dlm_message *ms)
error = -EINVAL;
}
+out:
if (error)
log_error(lkb->lkb_resource->res_ls,
"ignore invalid message %d from %d %x %x %x %d",
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 088/186] ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (86 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 087/186] fs: dlm: filter user dlm messages for kernel locks Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 089/186] drm/nouveau/pmu/gm200-: avoid touching PMU outside of DEVINIT/PREOS/ACR Greg Kroah-Hartman
` (98 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zekun Shen, Kalle Valo, Sasha Levin
From: Zekun Shen <bruceshenzk@gmail.com>
[ Upstream commit ae80b6033834342601e99f74f6a62ff5092b1cee ]
Unexpected WDCMSG_TARGET_START replay can lead to null-ptr-deref
when ar->tx_cmd->odata is NULL. The patch adds a null check to
prevent such case.
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
ar5523_cmd+0x46a/0x581 [ar5523]
ar5523_probe.cold+0x1b7/0x18da [ar5523]
? ar5523_cmd_rx_cb+0x7a0/0x7a0 [ar5523]
? __pm_runtime_set_status+0x54a/0x8f0
? _raw_spin_trylock_bh+0x120/0x120
? pm_runtime_barrier+0x220/0x220
? __pm_runtime_resume+0xb1/0xf0
usb_probe_interface+0x25b/0x710
really_probe+0x209/0x5d0
driver_probe_device+0xc6/0x1b0
device_driver_attach+0xe2/0x120
I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.
After fixing the code (fourth byte in usb packet) to WDCMSG_TARGET_START,
I got the null-ptr-deref bug. I believe the bug is triggerable whenever
cmd->odata is NULL. After patching, I tested with the same input and no
longer see the KASAN report.
This was NOT tested on a real device.
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXsmPQ3awHFLuAj2@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ar5523/ar5523.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index e1a1d27427cc9..bf43244f051c5 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -153,6 +153,10 @@ static void ar5523_cmd_rx_cb(struct urb *urb)
ar5523_err(ar, "Invalid reply to WDCMSG_TARGET_START");
return;
}
+ if (!cmd->odata) {
+ ar5523_err(ar, "Unexpected WDCMSG_TARGET_START reply");
+ return;
+ }
memcpy(cmd->odata, hdr + 1, sizeof(u32));
cmd->olen = sizeof(u32);
cmd->res = 0;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 089/186] drm/nouveau/pmu/gm200-: avoid touching PMU outside of DEVINIT/PREOS/ACR
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (87 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 088/186] ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 090/186] usb: gadget: f_fs: Use stream_open() for endpoint files Greg Kroah-Hartman
` (97 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Diego Viola, Ben Skeggs,
Karol Herbst, Sasha Levin
From: Ben Skeggs <bskeggs@redhat.com>
[ Upstream commit 1d2271d2fb85e54bfc9630a6c30ac0feb9ffb983 ]
There have been reports of the WFI timing out on some boards, and a
patch was proposed to just remove it. This stuff is rather fragile,
and I believe the WFI might be needed with our FW prior to GM200.
However, we probably should not be touching PMU during init on GPUs
where we depend on NVIDIA FW, outside of limited circumstances, so
this should be a somewhat safer change that achieves the desired
result.
Reported-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/10
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../gpu/drm/nouveau/nvkm/subdev/pmu/base.c | 37 +++++++++++--------
1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
index ce70a193caa7f..8cf3d1b4662de 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
@@ -70,20 +70,13 @@ nvkm_pmu_fini(struct nvkm_subdev *subdev, bool suspend)
return 0;
}
-static int
+static void
nvkm_pmu_reset(struct nvkm_pmu *pmu)
{
struct nvkm_device *device = pmu->subdev.device;
if (!pmu->func->enabled(pmu))
- return 0;
-
- /* Inhibit interrupts, and wait for idle. */
- nvkm_wr32(device, 0x10a014, 0x0000ffff);
- nvkm_msec(device, 2000,
- if (!nvkm_rd32(device, 0x10a04c))
- break;
- );
+ return;
/* Reset. */
if (pmu->func->reset)
@@ -94,25 +87,37 @@ nvkm_pmu_reset(struct nvkm_pmu *pmu)
if (!(nvkm_rd32(device, 0x10a10c) & 0x00000006))
break;
);
-
- return 0;
}
static int
nvkm_pmu_preinit(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
- return nvkm_pmu_reset(pmu);
+ nvkm_pmu_reset(pmu);
+ return 0;
}
static int
nvkm_pmu_init(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
- int ret = nvkm_pmu_reset(pmu);
- if (ret == 0 && pmu->func->init)
- ret = pmu->func->init(pmu);
- return ret;
+ struct nvkm_device *device = pmu->subdev.device;
+
+ if (!pmu->func->init)
+ return 0;
+
+ if (pmu->func->enabled(pmu)) {
+ /* Inhibit interrupts, and wait for idle. */
+ nvkm_wr32(device, 0x10a014, 0x0000ffff);
+ nvkm_msec(device, 2000,
+ if (!nvkm_rd32(device, 0x10a04c))
+ break;
+ );
+
+ nvkm_pmu_reset(pmu);
+ }
+
+ return pmu->func->init(pmu);
}
static int
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 090/186] usb: gadget: f_fs: Use stream_open() for endpoint files
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (88 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 089/186] drm/nouveau/pmu/gm200-: avoid touching PMU outside of DEVINIT/PREOS/ACR Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 091/186] HID: apple: Do not reset quirks when the Fn key is not found Greg Kroah-Hartman
` (96 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, John Keeping, Pavankumar Kondeti,
Sasha Levin
From: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
[ Upstream commit c76ef96fc00eb398c8fc836b0eb2f82bcc619dc7 ]
Function fs endpoint file operations are synchronized via an interruptible
mutex wait. However we see threads that do ep file operations concurrently
are getting blocked for the mutex lock in __fdget_pos(). This is an
uninterruptible wait and we see hung task warnings and kernel panic
if hung_task_panic systcl is enabled if host does not send/receive
the data for long time.
The reason for threads getting blocked in __fdget_pos() is due to
the file position protection introduced by the commit 9c225f2655e3
("vfs: atomic f_pos accesses as per POSIX"). Since function fs
endpoint files does not have the notion of the file position, switch
to the stream mode. This will bypass the file position mutex and
threads will be blocked in interruptible state for the function fs
mutex.
It should not affects user space as we are only changing the task state
changes the task state from UNINTERRUPTIBLE to INTERRUPTIBLE while waiting
for the USB transfers to be finished. However there is a slight change to
the O_NONBLOCK behavior. Earlier threads that are using O_NONBLOCK are also
getting blocked inside fdget_pos(). Now they reach to function fs and error
code is returned. The non blocking behavior is actually honoured now.
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Link: https://lore.kernel.org/r/1636712682-1226-1-git-send-email-quic_pkondeti@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/gadget/function/f_fs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 6029f9b00b4a0..61795025f11b6 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -608,7 +608,7 @@ static int ffs_ep0_open(struct inode *inode, struct file *file)
file->private_data = ffs;
ffs_data_opened(ffs);
- return 0;
+ return stream_open(inode, file);
}
static int ffs_ep0_release(struct inode *inode, struct file *file)
@@ -1072,7 +1072,7 @@ ffs_epfile_open(struct inode *inode, struct file *file)
file->private_data = epfile;
ffs_data_opened(epfile->ffs);
- return 0;
+ return stream_open(inode, file);
}
static int ffs_aio_cancel(struct kiocb *kiocb)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 091/186] HID: apple: Do not reset quirks when the Fn key is not found
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (89 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 090/186] usb: gadget: f_fs: Use stream_open() for endpoint files Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 092/186] media: b2c2: Add missing check in flexcop_pci_isr: Greg Kroah-Hartman
` (95 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, José Expósito, Jiri Kosina,
Sasha Levin
From: José Expósito <jose.exposito89@gmail.com>
[ Upstream commit a5fe7864d8ada170f19cc47d176bf8260ffb4263 ]
When a keyboard without a function key is detected, instead of removing
all quirks, remove only the APPLE_HAS_FN quirk.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-apple.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 4e3dd3f55a963..80ecbf14d3c82 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -392,7 +392,7 @@ static int apple_input_configured(struct hid_device *hdev,
if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
- asc->quirks = 0;
+ asc->quirks &= ~APPLE_HAS_FN;
}
return 0;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 092/186] media: b2c2: Add missing check in flexcop_pci_isr:
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (90 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 091/186] HID: apple: Do not reset quirks when the Fn key is not found Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 093/186] ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART Greg Kroah-Hartman
` (94 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheyu Ma, Mauro Carvalho Chehab, Sasha Levin
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit b13203032e679674c7c518f52a7ec0801ca3a829 ]
A out-of-bounds bug can be triggered by an interrupt, the reason for
this bug is the lack of checking of register values.
In flexcop_pci_isr, the driver reads value from a register and uses it as
a dma address. Finally, this address will be passed to the count parameter
of find_next_packet. If this value is larger than the size of dma, the
index of buffer will be out-of-bounds.
Fix this by adding a check after reading the value of the register.
The following KASAN report reveals it:
BUG: KASAN: slab-out-of-bounds in find_next_packet
drivers/media/dvb-core/dvb_demux.c:528 [inline]
BUG: KASAN: slab-out-of-bounds in _dvb_dmx_swfilter
drivers/media/dvb-core/dvb_demux.c:572 [inline]
BUG: KASAN: slab-out-of-bounds in dvb_dmx_swfilter+0x3fa/0x420
drivers/media/dvb-core/dvb_demux.c:603
Read of size 1 at addr ffff8880608c00a0 by task swapper/2/0
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.19.177-gdba4159c14ef #25
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xec/0x156 lib/dump_stack.c:118
print_address_description+0x78/0x290 mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report+0x25b/0x380 mm/kasan/report.c:412
__asan_report_load1_noabort+0x19/0x20 mm/kasan/report.c:430
find_next_packet drivers/media/dvb-core/dvb_demux.c:528 [inline]
_dvb_dmx_swfilter drivers/media/dvb-core/dvb_demux.c:572 [inline]
dvb_dmx_swfilter+0x3fa/0x420 drivers/media/dvb-core/dvb_demux.c:603
flexcop_pass_dmx_data+0x2e/0x40 drivers/media/common/b2c2/flexcop.c:167
flexcop_pci_isr+0x3d1/0x5d0 drivers/media/pci/b2c2/flexcop-pci.c:212
__handle_irq_event_percpu+0xfb/0x770 kernel/irq/handle.c:149
handle_irq_event_percpu+0x79/0x150 kernel/irq/handle.c:189
handle_irq_event+0xac/0x140 kernel/irq/handle.c:206
handle_fasteoi_irq+0x232/0x5c0 kernel/irq/chip.c:725
generic_handle_irq_desc include/linux/irqdesc.h:155 [inline]
handle_irq+0x230/0x3a0 arch/x86/kernel/irq_64.c:87
do_IRQ+0xa7/0x1e0 arch/x86/kernel/irq.c:247
common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670
</IRQ>
RIP: 0010:native_safe_halt+0x28/0x30 arch/x86/include/asm/irqflags.h:61
Code: 00 00 55 be 04 00 00 00 48 c7 c7 00 62 2f 8c 48 89 e5 e8 fb 31
e8 f8 8b 05 75 4f 8e 03 85 c0 7e 07 0f 00 2d 8a 61 66 00 fb f4 <5d> c3
90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41
RSP: 0018:ffff88806b71fcc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde
RAX: 0000000000000000 RBX: ffffffff8bde44c8 RCX: ffffffff88a11285
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8c2f6200
RBP: ffff88806b71fcc8 R08: fffffbfff185ec40 R09: fffffbfff185ec40
R10: 0000000000000001 R11: fffffbfff185ec40 R12: 0000000000000002
R13: ffffffff8be9d6e0 R14: 0000000000000000 R15: 0000000000000000
arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]
default_idle+0x6f/0x360 arch/x86/kernel/process.c:557
arch_cpu_idle+0xf/0x20 arch/x86/kernel/process.c:548
default_idle_call+0x3b/0x60 kernel/sched/idle.c:93
cpuidle_idle_call kernel/sched/idle.c:153 [inline]
do_idle+0x2ab/0x3c0 kernel/sched/idle.c:263
cpu_startup_entry+0xcb/0xe0 kernel/sched/idle.c:369
start_secondary+0x3b8/0x4e0 arch/x86/kernel/smpboot.c:271
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Allocated by task 1:
save_stack+0x43/0xd0 mm/kasan/kasan.c:448
set_track mm/kasan/kasan.c:460 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:553
kasan_slab_alloc+0x11/0x20 mm/kasan/kasan.c:490
slab_post_alloc_hook mm/slab.h:445 [inline]
slab_alloc_node mm/slub.c:2741 [inline]
slab_alloc mm/slub.c:2749 [inline]
kmem_cache_alloc+0xeb/0x280 mm/slub.c:2754
kmem_cache_zalloc include/linux/slab.h:699 [inline]
__kernfs_new_node+0xe2/0x6f0 fs/kernfs/dir.c:633
kernfs_new_node+0x9a/0x120 fs/kernfs/dir.c:693
__kernfs_create_file+0x5f/0x340 fs/kernfs/file.c:992
sysfs_add_file_mode_ns+0x22a/0x4e0 fs/sysfs/file.c:306
create_files fs/sysfs/group.c:63 [inline]
internal_create_group+0x34e/0xc30 fs/sysfs/group.c:147
sysfs_create_group fs/sysfs/group.c:173 [inline]
sysfs_create_groups+0x9c/0x140 fs/sysfs/group.c:200
driver_add_groups+0x3e/0x50 drivers/base/driver.c:129
bus_add_driver+0x3a5/0x790 drivers/base/bus.c:684
driver_register+0x1cd/0x410 drivers/base/driver.c:170
__pci_register_driver+0x197/0x200 drivers/pci/pci-driver.c:1411
cx88_audio_pci_driver_init+0x23/0x25 drivers/media/pci/cx88/cx88-alsa.c:
1017
do_one_initcall+0xe0/0x610 init/main.c:884
do_initcall_level init/main.c:952 [inline]
do_initcalls init/main.c:960 [inline]
do_basic_setup init/main.c:978 [inline]
kernel_init_freeable+0x4d0/0x592 init/main.c:1145
kernel_init+0x18/0x190 init/main.c:1062
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Freed by task 0:
(stack is not available)
The buggy address belongs to the object at ffff8880608c0000
which belongs to the cache kernfs_node_cache of size 160
The buggy address is located 0 bytes to the right of
160-byte region [ffff8880608c0000, ffff8880608c00a0)
The buggy address belongs to the page:
page:ffffea0001823000 count:1 mapcount:0 mapping:ffff88806bed1e00
index:0x0 compound_mapcount: 0
flags: 0x100000000008100(slab|head)
raw: 0100000000008100 dead000000000100 dead000000000200 ffff88806bed1e00
raw: 0000000000000000 0000000000240024 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8880608bff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff8880608c0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880608c0080: 00 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00
^
ffff8880608c0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff8880608c0180: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
==================================================================
Link: https://lore.kernel.org/linux-media/1620723603-30912-1-git-send-email-zheyuma97@gmail.com
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/b2c2/flexcop-pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/pci/b2c2/flexcop-pci.c b/drivers/media/pci/b2c2/flexcop-pci.c
index cc6527e355373..b7d8e34ffd5da 100644
--- a/drivers/media/pci/b2c2/flexcop-pci.c
+++ b/drivers/media/pci/b2c2/flexcop-pci.c
@@ -184,6 +184,8 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
dma_addr_t cur_addr =
fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2;
u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0;
+ if (cur_pos > fc_pci->dma[0].size * 2)
+ goto error;
deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, last_cur_pos: %08x ",
jiffies_to_usecs(jiffies - fc_pci->last_irq),
@@ -224,6 +226,7 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
ret = IRQ_NONE;
}
+error:
spin_unlock_irqrestore(&fc_pci->irq_lock, flags);
return ret;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 093/186] ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (91 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 092/186] media: b2c2: Add missing check in flexcop_pci_isr: Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 094/186] mlxsw: pci: Add shutdown method in PCI driver Greg Kroah-Hartman
` (93 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lukas Bulwahn, Arnd Bergmann,
Shawn Guo, Sasha Levin
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
[ Upstream commit b0100bce4ff82ec1ccd3c1f3d339fd2df6a81784 ]
Since commit 4b563a066611 ("ARM: imx: Remove imx21 support"), the config
DEBUG_IMX21_IMX27_UART is really only debug support for IMX27.
So, rename this option to DEBUG_IMX27_UART and adjust dependencies in
Kconfig and rename the definitions to IMX27 as further clean-up.
This issue was discovered with ./scripts/checkkconfigsymbols.py, which
reported that DEBUG_IMX21_IMX27_UART depends on the non-existing config
SOC_IMX21.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/Kconfig.debug | 14 +++++++-------
arch/arm/include/debug/imx-uart.h | 18 +++++++++---------
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index d6cf18a0cb0a9..b70ed4c7691e5 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -363,12 +363,12 @@ choice
Say Y here if you want kernel low-level debugging support
on i.MX25.
- config DEBUG_IMX21_IMX27_UART
- bool "i.MX21 and i.MX27 Debug UART"
- depends on SOC_IMX21 || SOC_IMX27
+ config DEBUG_IMX27_UART
+ bool "i.MX27 Debug UART"
+ depends on SOC_IMX27
help
Say Y here if you want kernel low-level debugging support
- on i.MX21 or i.MX27.
+ on i.MX27.
config DEBUG_IMX28_UART
bool "i.MX28 Debug UART"
@@ -1398,7 +1398,7 @@ config DEBUG_IMX_UART_PORT
int "i.MX Debug UART Port Selection"
depends on DEBUG_IMX1_UART || \
DEBUG_IMX25_UART || \
- DEBUG_IMX21_IMX27_UART || \
+ DEBUG_IMX27_UART || \
DEBUG_IMX31_UART || \
DEBUG_IMX35_UART || \
DEBUG_IMX50_UART || \
@@ -1451,12 +1451,12 @@ config DEBUG_LL_INCLUDE
default "debug/icedcc.S" if DEBUG_ICEDCC
default "debug/imx.S" if DEBUG_IMX1_UART || \
DEBUG_IMX25_UART || \
- DEBUG_IMX21_IMX27_UART || \
+ DEBUG_IMX27_UART || \
DEBUG_IMX31_UART || \
DEBUG_IMX35_UART || \
DEBUG_IMX50_UART || \
DEBUG_IMX51_UART || \
- DEBUG_IMX53_UART ||\
+ DEBUG_IMX53_UART || \
DEBUG_IMX6Q_UART || \
DEBUG_IMX6SL_UART || \
DEBUG_IMX6SX_UART || \
diff --git a/arch/arm/include/debug/imx-uart.h b/arch/arm/include/debug/imx-uart.h
index bce58e975ad1f..c750cc9876f6d 100644
--- a/arch/arm/include/debug/imx-uart.h
+++ b/arch/arm/include/debug/imx-uart.h
@@ -14,13 +14,6 @@
#define IMX1_UART_BASE_ADDR(n) IMX1_UART##n##_BASE_ADDR
#define IMX1_UART_BASE(n) IMX1_UART_BASE_ADDR(n)
-#define IMX21_UART1_BASE_ADDR 0x1000a000
-#define IMX21_UART2_BASE_ADDR 0x1000b000
-#define IMX21_UART3_BASE_ADDR 0x1000c000
-#define IMX21_UART4_BASE_ADDR 0x1000d000
-#define IMX21_UART_BASE_ADDR(n) IMX21_UART##n##_BASE_ADDR
-#define IMX21_UART_BASE(n) IMX21_UART_BASE_ADDR(n)
-
#define IMX25_UART1_BASE_ADDR 0x43f90000
#define IMX25_UART2_BASE_ADDR 0x43f94000
#define IMX25_UART3_BASE_ADDR 0x5000c000
@@ -29,6 +22,13 @@
#define IMX25_UART_BASE_ADDR(n) IMX25_UART##n##_BASE_ADDR
#define IMX25_UART_BASE(n) IMX25_UART_BASE_ADDR(n)
+#define IMX27_UART1_BASE_ADDR 0x1000a000
+#define IMX27_UART2_BASE_ADDR 0x1000b000
+#define IMX27_UART3_BASE_ADDR 0x1000c000
+#define IMX27_UART4_BASE_ADDR 0x1000d000
+#define IMX27_UART_BASE_ADDR(n) IMX27_UART##n##_BASE_ADDR
+#define IMX27_UART_BASE(n) IMX27_UART_BASE_ADDR(n)
+
#define IMX31_UART1_BASE_ADDR 0x43f90000
#define IMX31_UART2_BASE_ADDR 0x43f94000
#define IMX31_UART3_BASE_ADDR 0x5000c000
@@ -115,10 +115,10 @@
#ifdef CONFIG_DEBUG_IMX1_UART
#define UART_PADDR IMX_DEBUG_UART_BASE(IMX1)
-#elif defined(CONFIG_DEBUG_IMX21_IMX27_UART)
-#define UART_PADDR IMX_DEBUG_UART_BASE(IMX21)
#elif defined(CONFIG_DEBUG_IMX25_UART)
#define UART_PADDR IMX_DEBUG_UART_BASE(IMX25)
+#elif defined(CONFIG_DEBUG_IMX27_UART)
+#define UART_PADDR IMX_DEBUG_UART_BASE(IMX27)
#elif defined(CONFIG_DEBUG_IMX31_UART)
#define UART_PADDR IMX_DEBUG_UART_BASE(IMX31)
#elif defined(CONFIG_DEBUG_IMX35_UART)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 094/186] mlxsw: pci: Add shutdown method in PCI driver
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (92 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 093/186] ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 095/186] drm/bridge: megachips: Ensure both bridges are probed before registration Greg Kroah-Hartman
` (92 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Biederman, Danielle Ratson,
Ido Schimmel, David S. Miller, Sasha Levin
From: Danielle Ratson <danieller@nvidia.com>
[ Upstream commit c1020d3cf4752f61a6a413f632ea2ce2370e150d ]
On an arm64 platform with the Spectrum ASIC, after loading and executing
a new kernel via kexec, the following trace [1] is observed. This seems
to be caused by the fact that the device is not properly shutdown before
executing the new kernel.
Fix this by implementing a shutdown method which mirrors the remove
method, as recommended by the kexec maintainer [2][3].
[1]
BUG: Bad page state in process devlink pfn:22f73d
page:fffffe00089dcf40 refcount:-1 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x2ffff00000000000()
raw: 2ffff00000000000 0000000000000000 ffffffff089d0201 0000000000000000
raw: 0000000000000000 0000000000000000 ffffffffffffffff 0000000000000000
page dumped because: nonzero _refcount
Modules linked in:
CPU: 1 PID: 16346 Comm: devlink Tainted: G B 5.8.0-rc6-custom-273020-gac6b365b1bf5 #44
Hardware name: Marvell Armada 7040 TX4810M (DT)
Call trace:
dump_backtrace+0x0/0x1d0
show_stack+0x1c/0x28
dump_stack+0xbc/0x118
bad_page+0xcc/0xf8
check_free_page_bad+0x80/0x88
__free_pages_ok+0x3f8/0x418
__free_pages+0x38/0x60
kmem_freepages+0x200/0x2a8
slab_destroy+0x28/0x68
slabs_destroy+0x60/0x90
___cache_free+0x1b4/0x358
kfree+0xc0/0x1d0
skb_free_head+0x2c/0x38
skb_release_data+0x110/0x1a0
skb_release_all+0x2c/0x38
consume_skb+0x38/0x130
__dev_kfree_skb_any+0x44/0x50
mlxsw_pci_rdq_fini+0x8c/0xb0
mlxsw_pci_queue_fini.isra.0+0x28/0x58
mlxsw_pci_queue_group_fini+0x58/0x88
mlxsw_pci_aqs_fini+0x2c/0x60
mlxsw_pci_fini+0x34/0x50
mlxsw_core_bus_device_unregister+0x104/0x1d0
mlxsw_devlink_core_bus_device_reload_down+0x2c/0x48
devlink_reload+0x44/0x158
devlink_nl_cmd_reload+0x270/0x290
genl_rcv_msg+0x188/0x2f0
netlink_rcv_skb+0x5c/0x118
genl_rcv+0x3c/0x50
netlink_unicast+0x1bc/0x278
netlink_sendmsg+0x194/0x390
__sys_sendto+0xe0/0x158
__arm64_sys_sendto+0x2c/0x38
el0_svc_common.constprop.0+0x70/0x168
do_el0_svc+0x28/0x88
el0_sync_handler+0x88/0x190
el0_sync+0x140/0x180
[2]
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1195432.html
[3]
https://patchwork.kernel.org/project/linux-scsi/patch/20170212214920.28866-1-anton@ozlabs.org/#20116693
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/mellanox/mlxsw/pci.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index 6ef20e5cc77dd..de93c77148684 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -1772,6 +1772,7 @@ int mlxsw_pci_driver_register(struct pci_driver *pci_driver)
{
pci_driver->probe = mlxsw_pci_probe;
pci_driver->remove = mlxsw_pci_remove;
+ pci_driver->shutdown = mlxsw_pci_remove;
return pci_register_driver(pci_driver);
}
EXPORT_SYMBOL(mlxsw_pci_driver_register);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 095/186] drm/bridge: megachips: Ensure both bridges are probed before registration
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (93 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 094/186] mlxsw: pci: Add shutdown method in PCI driver Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 096/186] gpiolib: acpi: Do not set the IRQ type if the IRQ is already in use Greg Kroah-Hartman
` (91 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Martyn Welch, Peter Senna Tschudin,
Martyn Welch, Neil Armstrong, Robert Foss, Laurent Pinchart,
Jonas Karlman, Jernej Skrabec, Sasha Levin
From: Martyn Welch <martyn.welch@collabora.com>
[ Upstream commit 11632d4aa2b3f126790e81a4415d6c23103cf8bb ]
In the configuration used by the b850v3, the STDP2690 is used to read EDID
data whilst it's the STDP4028 which can detect when monitors are connected.
This can result in problems at boot with monitors connected when the
STDP4028 is probed first, a monitor is detected and an attempt is made to
read the EDID data before the STDP2690 has probed:
[ 3.795721] Unable to handle kernel NULL pointer dereference at virtual address 00000018
[ 3.803845] pgd = (ptrval)
[ 3.806581] [00000018] *pgd=00000000
[ 3.810180] Internal error: Oops: 5 [#1] SMP ARM
[ 3.814813] Modules linked in:
[ 3.817879] CPU: 0 PID: 64 Comm: kworker/u4:1 Not tainted 5.15.0 #1
[ 3.824161] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[ 3.830705] Workqueue: events_unbound deferred_probe_work_func
[ 3.836565] PC is at stdp2690_get_edid+0x44/0x19c
[ 3.841286] LR is at ge_b850v3_lvds_get_modes+0x2c/0x5c
[ 3.846526] pc : [<805eae10>] lr : [<805eb138>] psr: 80000013
[ 3.852802] sp : 81c359d0 ip : 7dbb550b fp : 81c35a1c
[ 3.858037] r10: 81c73840 r9 : 81c73894 r8 : 816d9800
[ 3.863270] r7 : 00000000 r6 : 81c34000 r5 : 00000000 r4 : 810c35f0
[ 3.869808] r3 : 80e3e294 r2 : 00000080 r1 : 00000cc0 r0 : 81401180
[ 3.876349] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 3.883499] Control: 10c5387d Table: 1000404a DAC: 00000051
[ 3.889254] Register r0 information: slab kmem_cache start 81401180 pointer offset 0
[ 3.897034] Register r1 information: non-paged memory
[ 3.902097] Register r2 information: non-paged memory
[ 3.907160] Register r3 information: non-slab/vmalloc memory
[ 3.912832] Register r4 information: non-slab/vmalloc memory
[ 3.918503] Register r5 information: NULL pointer
[ 3.923217] Register r6 information: non-slab/vmalloc memory
[ 3.928887] Register r7 information: NULL pointer
[ 3.933601] Register r8 information: slab kmalloc-1k start 816d9800 pointer offset 0 size 1024
[ 3.942244] Register r9 information: slab kmalloc-2k start 81c73800 pointer offset 148 size 2048
[ 3.951058] Register r10 information: slab kmalloc-2k start 81c73800 pointer offset 64 size 2048
[ 3.959873] Register r11 information: non-slab/vmalloc memory
[ 3.965632] Register r12 information: non-paged memory
[ 3.970781] Process kworker/u4:1 (pid: 64, stack limit = 0x(ptrval))
[ 3.977148] Stack: (0x81c359d0 to 0x81c36000)
[ 3.981517] 59c0: 80b2b668 80b2b5bc 000002e2 0000034e
[ 3.989712] 59e0: 81c35a8c 816d98e8 81c35a14 7dbb550b 805bfcd0 810c35f0 81c73840 824addc0
[ 3.997906] 5a00: 00001000 816d9800 81c73894 81c73840 81c35a34 81c35a20 805eb138 805eadd8
[ 4.006099] 5a20: 810c35f0 00000045 81c35adc 81c35a38 80594188 805eb118 80d7c788 80dd1848
[ 4.014292] 5a40: 00000000 81c35a50 80dca950 811194d3 80dca7c4 80dca944 80dca91c 816d9800
[ 4.022485] 5a60: 81c34000 81c760a8 816d9800 80c58c98 810c35f0 816d98e8 00001000 00001000
[ 4.030678] 5a80: 00000000 00000000 8017712c 81c60000 00000002 00000001 00000000 00000000
[ 4.038870] 5aa0: 816d9900 816d9900 00000000 7dbb550b 805c700c 00000008 826282c8 826282c8
[ 4.047062] 5ac0: 00001000 81e1ce40 00001000 00000002 81c35bf4 81c35ae0 805d9694 80593fc0
[ 4.055255] 5ae0: 8017a970 80179ad8 00000179 00000000 81c35bcc 81c35b00 80177108 8017a950
[ 4.063447] 5b00: 00000000 81c35b10 81c34000 00000000 81004fd8 81010a38 00000000 00000059
[ 4.071639] 5b20: 816d98d4 81fbb718 00000013 826282c8 8017a940 81c35b40 81134448 00000400
[ 4.079831] 5b40: 00000178 00000000 e063b9c1 00000000 c2000049 00000040 00000000 00000008
[ 4.088024] 5b60: 82628300 82628380 00000000 00000000 81c34000 00000000 81fbb700 82628340
[ 4.096216] 5b80: 826283c0 00001000 00000000 00000010 816d9800 826282c0 801766f8 00000000
[ 4.104408] 5ba0: 00000000 81004fd8 00000049 00000000 00000000 00000001 80dcf940 80178de4
[ 4.112601] 5bc0: 81c35c0c 7dbb550b 80178de4 81fbb700 00000010 00000010 810c35f4 81e1ce40
[ 4.120793] 5be0: 81c40908 0000000c 81c35c64 81c35bf8 805a7f18 805d94a0 81c35c3c 816d9800
[ 4.128985] 5c00: 00000010 81c34000 81c35c2c 81c35c18 8012fce0 805be90c 81c35c3c 81c35c28
[ 4.137178] 5c20: 805be90c 80173210 81fbb600 81fbb6b4 81c35c5c 7dbb550b 81c35c64 81fbb700
[ 4.145370] 5c40: 816d9800 00000010 810c35f4 81e1ce40 81c40908 0000000c 81c35c84 81c35c68
[ 4.153565] 5c60: 805a8c78 805a7ed0 816d9800 81fbb700 00000010 00000000 81c35cac 81c35c88
[ 4.161758] 5c80: 805a8dc4 805a8b68 816d9800 00000000 816d9800 00000000 8179f810 810c42d0
[ 4.169950] 5ca0: 81c35ccc 81c35cb0 805e47b0 805a8d18 824aa240 81e1ea80 81c40908 81126b60
[ 4.178144] 5cc0: 81c35d14 81c35cd0 8060db1c 805e46cc 81c35d14 81c35ce0 80dd90f8 810c4d58
[ 4.186338] 5ce0: 80dd90dc 81fe9740 fffffffe 81fe9740 81e1ea80 00000000 810c4d6c 80c4b95c
[ 4.194531] 5d00: 80dd9a3c 815c6810 81c35d34 81c35d18 8060dc9c 8060d8fc 8246b440 815c6800
[ 4.202724] 5d20: 815c6810 eefd8e00 81c35d44 81c35d38 8060dd80 8060dbec 81c35d6c 81c35d48
[ 4.210918] 5d40: 805e98a4 8060dd70 00000000 815c6810 810c45b0 81126e90 81126e90 80dd9a3c
[ 4.219112] 5d60: 81c35d8c 81c35d70 80619574 805e9808 815c6810 00000000 810c45b0 81126e90
[ 4.227305] 5d80: 81c35db4 81c35d90 806168dc 80619514 80625df0 80623c80 815c6810 810c45b0
[ 4.235498] 5da0: 81c35e6c 815c6810 81c35dec 81c35db8 80616d04 80616800 81c35de4 81c35dc8
[ 4.243691] 5dc0: 808382b0 80b2f444 8116e310 8116e314 81c35e6c 815c6810 00000003 80dd9a3c
[ 4.251884] 5de0: 81c35e14 81c35df0 80616ec8 80616c60 00000001 810c45b0 81c35e6c 815c6810
[ 4.260076] 5e00: 00000001 80dd9a3c 81c35e34 81c35e18 80617338 80616e90 00000000 81c35e6c
[ 4.268269] 5e20: 80617284 81c34000 81c35e64 81c35e38 80614730 80617290 81c35e64 8171a06c
[ 4.276461] 5e40: 81e220b8 7dbb550b 815c6810 81c34000 815c6854 81126e90 81c35e9c 81c35e68
[ 4.284654] 5e60: 8061673c 806146a8 8060f5e0 815c6810 00000001 7dbb550b 00000000 810c5080
[ 4.292847] 5e80: 810c5320 815c6810 81126e90 00000000 81c35eac 81c35ea0 80617554 80616650
[ 4.301040] 5ea0: 81c35ecc 81c35eb0 80615694 80617544 810c5080 810c5080 810c5094 81126e90
[ 4.309233] 5ec0: 81c35efc 81c35ed0 80615c6c 8061560c 80615bc0 810c50c0 817eeb00 81412800
[ 4.317425] 5ee0: 814c3000 00000000 814c300d 81119a60 81c35f3c 81c35f00 80141488 80615bcc
[ 4.325618] 5f00: 81c60000 81c34000 81c35f24 81c35f18 80143078 817eeb00 81412800 817eeb18
[ 4.333811] 5f20: 81412818 81003d00 00000088 81412800 81c35f74 81c35f40 80141a48 80141298
[ 4.342005] 5f40: 81c35f74 81c34000 801481ac 817efa40 817efc00 801417d8 817eeb00 00000000
[ 4.350199] 5f60: 815a7e7c 81c34000 81c35fac 81c35f78 80149b1c 801417e4 817efc20 817efc20
[ 4.358391] 5f80: ffffe000 817efa40 801499a8 00000000 00000000 00000000 00000000 00000000
[ 4.366583] 5fa0: 00000000 81c35fb0 80100130 801499b4 00000000 00000000 00000000 00000000
[ 4.374774] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.382966] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 4.391155] Backtrace:
[ 4.393613] [<805eadcc>] (stdp2690_get_edid) from [<805eb138>] (ge_b850v3_lvds_get_modes+0x2c/0x5c)
[ 4.402691] r10:81c73840 r9:81c73894 r8:816d9800 r7:00001000 r6:824addc0 r5:81c73840
[ 4.410534] r4:810c35f0
[ 4.413073] [<805eb10c>] (ge_b850v3_lvds_get_modes) from [<80594188>] (drm_helper_probe_single_connector_modes+0x1d4/0x84c)
[ 4.424240] r5:00000045 r4:810c35f0
[ 4.427822] [<80593fb4>] (drm_helper_probe_single_connector_modes) from [<805d9694>] (drm_client_modeset_probe+0x200/0x1384)
[ 4.439074] r10:00000002 r9:00001000 r8:81e1ce40 r7:00001000 r6:826282c8 r5:826282c8
[ 4.446917] r4:00000008
[ 4.449455] [<805d9494>] (drm_client_modeset_probe) from [<805a7f18>] (__drm_fb_helper_initial_config_and_unlock+0x54/0x5b4)
[ 4.460713] r10:0000000c r9:81c40908 r8:81e1ce40 r7:810c35f4 r6:00000010 r5:00000010
[ 4.468556] r4:81fbb700
[ 4.471095] [<805a7ec4>] (__drm_fb_helper_initial_config_and_unlock) from [<805a8c78>] (drm_fbdev_client_hotplug+0x11c/0x1b0)
[ 4.482434] r10:0000000c r9:81c40908 r8:81e1ce40 r7:810c35f4 r6:00000010 r5:816d9800
[ 4.490276] r4:81fbb700
[ 4.492814] [<805a8b5c>] (drm_fbdev_client_hotplug) from [<805a8dc4>] (drm_fbdev_generic_setup+0xb8/0x1a4)
[ 4.502494] r7:00000000 r6:00000010 r5:81fbb700 r4:816d9800
[ 4.508160] [<805a8d0c>] (drm_fbdev_generic_setup) from [<805e47b0>] (imx_drm_bind+0xf0/0x130)
[ 4.516805] r7:810c42d0 r6:8179f810 r5:00000000 r4:816d9800
[ 4.522474] [<805e46c0>] (imx_drm_bind) from [<8060db1c>] (try_to_bring_up_master+0x22c/0x2f0)
[ 4.531116] r7:81126b60 r6:81c40908 r5:81e1ea80 r4:824aa240
[ 4.536783] [<8060d8f0>] (try_to_bring_up_master) from [<8060dc9c>] (__component_add+0xbc/0x184)
[ 4.545597] r10:815c6810 r9:80dd9a3c r8:80c4b95c r7:810c4d6c r6:00000000 r5:81e1ea80
[ 4.553440] r4:81fe9740
[ 4.555980] [<8060dbe0>] (__component_add) from [<8060dd80>] (component_add+0x1c/0x20)
[ 4.563921] r7:eefd8e00 r6:815c6810 r5:815c6800 r4:8246b440
[ 4.569589] [<8060dd64>] (component_add) from [<805e98a4>] (dw_hdmi_imx_probe+0xa8/0xe8)
[ 4.577702] [<805e97fc>] (dw_hdmi_imx_probe) from [<80619574>] (platform_probe+0x6c/0xc8)
[ 4.585908] r9:80dd9a3c r8:81126e90 r7:81126e90 r6:810c45b0 r5:815c6810 r4:00000000
[ 4.593662] [<80619508>] (platform_probe) from [<806168dc>] (really_probe+0xe8/0x460)
[ 4.601524] r7:81126e90 r6:810c45b0 r5:00000000 r4:815c6810
[ 4.607191] [<806167f4>] (really_probe) from [<80616d04>] (__driver_probe_device+0xb0/0x230)
[ 4.615658] r7:815c6810 r6:81c35e6c r5:810c45b0 r4:815c6810
[ 4.621326] [<80616c54>] (__driver_probe_device) from [<80616ec8>] (driver_probe_device+0x44/0xe0)
[ 4.630313] r9:80dd9a3c r8:00000003 r7:815c6810 r6:81c35e6c r5:8116e314 r4:8116e310
[ 4.638068] [<80616e84>] (driver_probe_device) from [<80617338>] (__device_attach_driver+0xb4/0x12c)
[ 4.647227] r9:80dd9a3c r8:00000001 r7:815c6810 r6:81c35e6c r5:810c45b0 r4:00000001
[ 4.654981] [<80617284>] (__device_attach_driver) from [<80614730>] (bus_for_each_drv+0x94/0xd8)
[ 4.663794] r7:81c34000 r6:80617284 r5:81c35e6c r4:00000000
[ 4.669461] [<8061469c>] (bus_for_each_drv) from [<8061673c>] (__device_attach+0xf8/0x190)
[ 4.677753] r7:81126e90 r6:815c6854 r5:81c34000 r4:815c6810
[ 4.683419] [<80616644>] (__device_attach) from [<80617554>] (device_initial_probe+0x1c/0x20)
[ 4.691971] r8:00000000 r7:81126e90 r6:815c6810 r5:810c5320 r4:810c5080
[ 4.698681] [<80617538>] (device_initial_probe) from [<80615694>] (bus_probe_device+0x94/0x9c)
[ 4.707318] [<80615600>] (bus_probe_device) from [<80615c6c>] (deferred_probe_work_func+0xac/0xf0)
[ 4.716305] r7:81126e90 r6:810c5094 r5:810c5080 r4:810c5080
[ 4.721973] [<80615bc0>] (deferred_probe_work_func) from [<80141488>] (process_one_work+0x1fc/0x54c)
[ 4.731139] r10:81119a60 r9:814c300d r8:00000000 r7:814c3000 r6:81412800 r5:817eeb00
[ 4.738981] r4:810c50c0 r3:80615bc0
[ 4.742563] [<8014128c>] (process_one_work) from [<80141a48>] (worker_thread+0x270/0x570)
[ 4.750765] r10:81412800 r9:00000088 r8:81003d00 r7:81412818 r6:817eeb18 r5:81412800
[ 4.758608] r4:817eeb00
[ 4.761147] [<801417d8>] (worker_thread) from [<80149b1c>] (kthread+0x174/0x190)
[ 4.768574] r10:81c34000 r9:815a7e7c r8:00000000 r7:817eeb00 r6:801417d8 r5:817efc00
[ 4.776417] r4:817efa40
[ 4.778955] [<801499a8>] (kthread) from [<80100130>] (ret_from_fork+0x14/0x24)
[ 4.786201] Exception stack(0x81c35fb0 to 0x81c35ff8)
[ 4.791266] 5fa0: 00000000 00000000 00000000 00000000
[ 4.799459] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.807651] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 4.814279] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:801499a8
[ 4.822120] r4:817efa40
[ 4.824664] Code: e3a02080 e593001c e3a01d33 e3a05000 (e5979018)
Split the registration from the STDP4028 probe routine and only perform
registration once both the STDP4028 and STDP2690 have probed.
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
CC: Peter Senna Tschudin <peter.senna@gmail.com>
CC: Martyn Welch <martyn.welch@collabora.co.uk>
CC: Neil Armstrong <narmstrong@baylibre.com>
CC: Robert Foss <robert.foss@linaro.org>
CC: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
CC: Jonas Karlman <jonas@kwiboo.se>
CC: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/43552c3404e8fdf92d8bc5658fac24e9f03c2c57.1637836606.git.martyn.welch@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 40 +++++++++++++------
1 file changed, 28 insertions(+), 12 deletions(-)
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 9f522372a4884..4ab7b034bfec8 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -302,19 +302,10 @@ out:
mutex_unlock(&ge_b850v3_lvds_dev_mutex);
}
-static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
- const struct i2c_device_id *id)
+static int ge_b850v3_register(void)
{
+ struct i2c_client *stdp4028_i2c = ge_b850v3_lvds_ptr->stdp4028_i2c;
struct device *dev = &stdp4028_i2c->dev;
- int ret;
-
- ret = ge_b850v3_lvds_init(dev);
-
- if (ret)
- return ret;
-
- ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
- i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
/* drm bridge initialization */
ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs;
@@ -336,6 +327,27 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
"ge-b850v3-lvds-dp", ge_b850v3_lvds_ptr);
}
+static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &stdp4028_i2c->dev;
+ int ret;
+
+ ret = ge_b850v3_lvds_init(dev);
+
+ if (ret)
+ return ret;
+
+ ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
+ i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
+
+ /* Only register after both bridges are probed */
+ if (!ge_b850v3_lvds_ptr->stdp2690_i2c)
+ return 0;
+
+ return ge_b850v3_register();
+}
+
static int stdp4028_ge_b850v3_fw_remove(struct i2c_client *stdp4028_i2c)
{
ge_b850v3_lvds_remove();
@@ -379,7 +391,11 @@ static int stdp2690_ge_b850v3_fw_probe(struct i2c_client *stdp2690_i2c,
ge_b850v3_lvds_ptr->stdp2690_i2c = stdp2690_i2c;
i2c_set_clientdata(stdp2690_i2c, ge_b850v3_lvds_ptr);
- return 0;
+ /* Only register after both bridges are probed */
+ if (!ge_b850v3_lvds_ptr->stdp4028_i2c)
+ return 0;
+
+ return ge_b850v3_register();
}
static int stdp2690_ge_b850v3_fw_remove(struct i2c_client *stdp2690_i2c)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 096/186] gpiolib: acpi: Do not set the IRQ type if the IRQ is already in use
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (94 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 095/186] drm/bridge: megachips: Ensure both bridges are probed before registration Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 097/186] HSI: core: Fix return freed object in hsi_new_client Greg Kroah-Hartman
` (90 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hans de Goede, Andy Shevchenko, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit bdfd6ab8fdccd8b138837efff66f4a1911496378 ]
If the IRQ is already in use, then acpi_dev_gpio_irq_get_by() really
should not change the type underneath the current owner.
I specifically hit an issue with this an a Chuwi Hi8 Super (CWI509) Bay
Trail tablet, when the Boot OS selection in the BIOS is set to Android.
In this case _STA for a MAX17047 ACPI I2C device wrongly returns 0xf and
the _CRS resources for this device include a GpioInt pointing to a GPIO
already in use by an _AEI handler, with a different type then specified
in the _CRS for the MAX17047 device. Leading to the acpi_dev_gpio_irq_get()
call done by the i2c-core-acpi.c code changing the type breaking the
_AEI handler.
Now this clearly is a bug in the DSDT of this tablet (in Android mode),
but in general calling irq_set_irq_type() on an IRQ which already is
in use seems like a bad idea.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpio/gpiolib-acpi.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index c380ce957d8da..60e394da97098 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -943,10 +943,17 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
irq_flags = acpi_dev_get_irq_type(info.triggering,
info.polarity);
- /* Set type if specified and different than the current one */
- if (irq_flags != IRQ_TYPE_NONE &&
- irq_flags != irq_get_trigger_type(irq))
- irq_set_irq_type(irq, irq_flags);
+ /*
+ * If the IRQ is not already in use then set type
+ * if specified and different than the current one.
+ */
+ if (can_request_irq(irq, irq_flags)) {
+ if (irq_flags != IRQ_TYPE_NONE &&
+ irq_flags != irq_get_trigger_type(irq))
+ irq_set_irq_type(irq, irq_flags);
+ } else {
+ dev_dbg(&adev->dev, "IRQ %d already in use\n", irq);
+ }
return irq;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 097/186] HSI: core: Fix return freed object in hsi_new_client
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (95 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 096/186] gpiolib: acpi: Do not set the IRQ type if the IRQ is already in use Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 098/186] mwifiex: Fix skb_over_panic in mwifiex_usb_recv() Greg Kroah-Hartman
` (89 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chengfeng Ye, Sebastian Reichel, Sasha Levin
From: Chengfeng Ye <cyeaa@connect.ust.hk>
[ Upstream commit a1ee1c08fcd5af03187dcd41dcab12fd5b379555 ]
cl is freed on error of calling device_register, but this
object is return later, which will cause uaf issue. Fix it
by return NULL on error.
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hsi/hsi_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hsi/hsi_core.c b/drivers/hsi/hsi_core.c
index 71895da63810b..daf2de837a30a 100644
--- a/drivers/hsi/hsi_core.c
+++ b/drivers/hsi/hsi_core.c
@@ -115,6 +115,7 @@ struct hsi_client *hsi_new_client(struct hsi_port *port,
if (device_register(&cl->device) < 0) {
pr_err("hsi: failed to register client: %s\n", info->name);
put_device(&cl->device);
+ goto err;
}
return cl;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 098/186] mwifiex: Fix skb_over_panic in mwifiex_usb_recv()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (96 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 097/186] HSI: core: Fix return freed object in hsi_new_client Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 099/186] usb: uhci: add aspeed ast2600 uhci support Greg Kroah-Hartman
` (88 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Brendan Dolan-Gavitt, Zekun Shen,
Kalle Valo, Sasha Levin
From: Zekun Shen <bruceshenzk@gmail.com>
[ Upstream commit 04d80663f67ccef893061b49ec8a42ff7045ae84 ]
Currently, with an unknown recv_type, mwifiex_usb_recv
just return -1 without restoring the skb. Next time
mwifiex_usb_rx_complete is invoked with the same skb,
calling skb_put causes skb_over_panic.
The bug is triggerable with a compromised/malfunctioning
usb device. After applying the patch, skb_over_panic
no longer shows up with the same input.
Attached is the panic report from fuzzing.
skbuff: skb_over_panic: text:000000003bf1b5fa
len:2048 put:4 head:00000000dd6a115b data:000000000a9445d8
tail:0x844 end:0x840 dev:<NULL>
kernel BUG at net/core/skbuff.c:109!
invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 PID: 198 Comm: in:imklog Not tainted 5.6.0 #60
RIP: 0010:skb_panic+0x15f/0x161
Call Trace:
<IRQ>
? mwifiex_usb_rx_complete+0x26b/0xfcd [mwifiex_usb]
skb_put.cold+0x24/0x24
mwifiex_usb_rx_complete+0x26b/0xfcd [mwifiex_usb]
__usb_hcd_giveback_urb+0x1e4/0x380
usb_giveback_urb_bh+0x241/0x4f0
? __hrtimer_run_queues+0x316/0x740
? __usb_hcd_giveback_urb+0x380/0x380
tasklet_action_common.isra.0+0x135/0x330
__do_softirq+0x18c/0x634
irq_exit+0x114/0x140
smp_apic_timer_interrupt+0xde/0x380
apic_timer_interrupt+0xf/0x20
</IRQ>
Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/marvell/mwifiex/usb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c b/drivers/net/wireless/marvell/mwifiex/usb.c
index 202ce83cb7948..f279cd4e78ff9 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -130,7 +130,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
default:
mwifiex_dbg(adapter, ERROR,
"unknown recv_type %#x\n", recv_type);
- return -1;
+ ret = -1;
+ goto exit_restore_skb;
}
break;
case MWIFIEX_USB_EP_DATA:
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 099/186] usb: uhci: add aspeed ast2600 uhci support
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (97 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 098/186] mwifiex: Fix skb_over_panic in mwifiex_usb_recv() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 100/186] floppy: Add max size check for user space request Greg Kroah-Hartman
` (87 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Neal Liu, Sasha Levin
From: Neal Liu <neal_liu@aspeedtech.com>
[ Upstream commit 554abfe2eadec97d12c71d4a69da1518478f69eb ]
Enable ast2600 uhci quirks.
Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20211126100021.2331024-1-neal_liu@aspeedtech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/host/uhci-platform.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 6cb16d4b22578..4e91f7b21a796 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -113,7 +113,8 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
num_ports);
}
if (of_device_is_compatible(np, "aspeed,ast2400-uhci") ||
- of_device_is_compatible(np, "aspeed,ast2500-uhci")) {
+ of_device_is_compatible(np, "aspeed,ast2500-uhci") ||
+ of_device_is_compatible(np, "aspeed,ast2600-uhci")) {
uhci->is_aspeed = 1;
dev_info(&pdev->dev,
"Enabled Aspeed implementation workarounds\n");
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 100/186] floppy: Add max size check for user space request
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (98 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 099/186] usb: uhci: add aspeed ast2600 uhci support Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 101/186] media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds Greg Kroah-Hartman
` (86 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+23a02c7df2cf2bc93fa2,
Xiongwei Song, Denis Efremov, Jens Axboe, Sasha Levin
From: Xiongwei Song <sxwjean@gmail.com>
[ Upstream commit 545a32498c536ee152331cd2e7d2416aa0f20e01 ]
We need to check the max request size that is from user space before
allocating pages. If the request size exceeds the limit, return -EINVAL.
This check can avoid the warning below from page allocator.
WARNING: CPU: 3 PID: 16525 at mm/page_alloc.c:5344 current_gfp_context include/linux/sched/mm.h:195 [inline]
WARNING: CPU: 3 PID: 16525 at mm/page_alloc.c:5344 __alloc_pages+0x45d/0x500 mm/page_alloc.c:5356
Modules linked in:
CPU: 3 PID: 16525 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:__alloc_pages+0x45d/0x500 mm/page_alloc.c:5344
Code: be c9 00 00 00 48 c7 c7 20 4a 97 89 c6 05 62 32 a7 0b 01 e8 74 9a 42 07 e9 6a ff ff ff 0f 0b e9 a0 fd ff ff 40 80 e5 3f eb 88 <0f> 0b e9 18 ff ff ff 4c 89 ef 44 89 e6 45 31 ed e8 1e 76 ff ff e9
RSP: 0018:ffffc90023b87850 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff92004770f0b RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000033 RDI: 0000000000010cc1
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff81bb4686 R11: 0000000000000001 R12: ffffffff902c1960
R13: 0000000000000033 R14: 0000000000000000 R15: ffff88804cf64a30
FS: 0000000000000000(0000) GS:ffff88802cd00000(0063) knlGS:00000000f44b4b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000002c921000 CR3: 000000004f507000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
__get_free_pages+0x8/0x40 mm/page_alloc.c:5418
raw_cmd_copyin drivers/block/floppy.c:3113 [inline]
raw_cmd_ioctl drivers/block/floppy.c:3160 [inline]
fd_locked_ioctl+0x12e5/0x2820 drivers/block/floppy.c:3528
fd_ioctl drivers/block/floppy.c:3555 [inline]
fd_compat_ioctl+0x891/0x1b60 drivers/block/floppy.c:3869
compat_blkdev_ioctl+0x3b8/0x810 block/ioctl.c:662
__do_compat_sys_ioctl+0x1c7/0x290 fs/ioctl.c:972
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
Reported-by: syzbot+23a02c7df2cf2bc93fa2@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211116131033.27685-1-sxwjean@me.com
Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/block/floppy.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index b6c99cf1ce745..057bedeaacab5 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3118,6 +3118,8 @@ static void raw_cmd_free(struct floppy_raw_cmd **ptr)
}
}
+#define MAX_LEN (1UL << MAX_ORDER << PAGE_SHIFT)
+
static int raw_cmd_copyin(int cmd, void __user *param,
struct floppy_raw_cmd **rcmd)
{
@@ -3155,7 +3157,7 @@ loop:
ptr->resultcode = 0;
if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
- if (ptr->length <= 0)
+ if (ptr->length <= 0 || ptr->length >= MAX_LEN)
return -EINVAL;
ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length);
fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 101/186] media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds.
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (99 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 100/186] floppy: Add max size check for user space request Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 102/186] media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach() Greg Kroah-Hartman
` (85 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, James Hilliard, Laurent Pinchart,
Mauro Carvalho Chehab, Sasha Levin
From: James Hilliard <james.hilliard1@gmail.com>
[ Upstream commit c8ed7d2f614cd8b315981d116c7a2fb01829500d ]
Some uvc devices appear to require the maximum allowed USB timeout
for GET_CUR/SET_CUR requests.
So lets just bump the UVC control timeout to 5 seconds which is the
same as the usb ctrl get/set defaults:
USB_CTRL_GET_TIMEOUT 5000
USB_CTRL_SET_TIMEOUT 5000
It fixes the following runtime warnings:
Failed to query (GET_CUR) UVC control 11 on unit 2: -110 (exp. 1).
Failed to query (SET_CUR) UVC control 3 on unit 2: -110 (exp. 2).
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/uvc/uvcvideo.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 05398784d1c89..acb9f95127eb2 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -167,7 +167,7 @@
/* Maximum status buffer size in bytes of interrupt URB. */
#define UVC_MAX_STATUS_SIZE 16
-#define UVC_CTRL_CONTROL_TIMEOUT 500
+#define UVC_CTRL_CONTROL_TIMEOUT 5000
#define UVC_CTRL_STREAMING_TIMEOUT 5000
/* Maximum allowed number of control mappings per device */
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 102/186] media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (100 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 101/186] media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 103/186] media: m920x: dont use stack on USB reads Greg Kroah-Hartman
` (84 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit 348df8035301dd212e3cc2860efe4c86cb0d3303 ]
In hexium_attach(dev, info), saa7146_vv_init() is called to allocate
a new memory for dev->vv_data. In hexium_detach(), saa7146_vv_release()
will be called and there is a dereference of dev->vv_data in
saa7146_vv_release(), which could lead to a NULL pointer dereference
on failure of saa7146_vv_init() according to the following logic.
Both hexium_attach() and hexium_detach() are callback functions of
the variable 'extension', so there exists a possible call chain directly
from hexium_attach() to hexium_detach():
hexium_attach(dev, info) -- fail to alloc memory to dev->vv_data
| in saa7146_vv_init().
|
|
hexium_detach() -- a dereference of dev->vv_data in saa7146_vv_release()
Fix this bug by adding a check of saa7146_vv_init().
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_VIDEO_HEXIUM_ORION=m show no new warnings,
and our static analyzer no longer warns about this code.
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/saa7146/hexium_orion.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/media/pci/saa7146/hexium_orion.c b/drivers/media/pci/saa7146/hexium_orion.c
index cb71653a66694..908de2f768441 100644
--- a/drivers/media/pci/saa7146/hexium_orion.c
+++ b/drivers/media/pci/saa7146/hexium_orion.c
@@ -366,10 +366,16 @@ static struct saa7146_ext_vv vv_data;
static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
{
struct hexium *hexium = (struct hexium *) dev->ext_priv;
+ int ret;
DEB_EE("\n");
- saa7146_vv_init(dev, &vv_data);
+ ret = saa7146_vv_init(dev, &vv_data);
+ if (ret) {
+ pr_err("Error in saa7146_vv_init()\n");
+ return ret;
+ }
+
vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
vv_data.vid_ops.vidioc_s_input = vidioc_s_input;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 103/186] media: m920x: dont use stack on USB reads
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (101 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 102/186] media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach() Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:42 ` [PATCH 4.14 104/186] iwlwifi: mvm: synchronize with FW after multicast commands Greg Kroah-Hartman
` (83 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, rkardell, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit a2ab06d7c4d6bfd0b545a768247a70463e977e27 ]
Using stack-allocated pointers for USB message data don't work.
This driver is almost OK with that, except for the I2C read
logic.
Fix it by using a temporary read buffer, just like on all other
calls to m920x_read().
Link: https://lore.kernel.org/all/ccc99e48-de4f-045e-0fe4-61e3118e3f74@mida.se/
Reported-by: rkardell@mida.se
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/dvb-usb/m920x.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/dvb-usb/m920x.c b/drivers/media/usb/dvb-usb/m920x.c
index 32081c2ce0da8..8a43e2415686a 100644
--- a/drivers/media/usb/dvb-usb/m920x.c
+++ b/drivers/media/usb/dvb-usb/m920x.c
@@ -280,6 +280,13 @@ static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
/* Should check for ack here, if we knew how. */
}
if (msg[i].flags & I2C_M_RD) {
+ char *read = kmalloc(1, GFP_KERNEL);
+ if (!read) {
+ ret = -ENOMEM;
+ kfree(read);
+ goto unlock;
+ }
+
for (j = 0; j < msg[i].len; j++) {
/* Last byte of transaction?
* Send STOP, otherwise send ACK. */
@@ -287,9 +294,12 @@ static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
if ((ret = m920x_read(d->udev, M9206_I2C, 0x0,
0x20 | stop,
- &msg[i].buf[j], 1)) != 0)
+ read, 1)) != 0)
goto unlock;
+ msg[i].buf[j] = read[0];
}
+
+ kfree(read);
} else {
for (j = 0; j < msg[i].len; j++) {
/* Last byte of transaction? Then send STOP. */
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 104/186] iwlwifi: mvm: synchronize with FW after multicast commands
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (102 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 103/186] media: m920x: dont use stack on USB reads Greg Kroah-Hartman
@ 2022-01-24 18:42 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 105/186] ath10k: Fix tx hanging Greg Kroah-Hartman
` (82 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:42 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Emmanuel Grumbach,
Maximilian Ernestus, Johannes Berg, Luca Coelho, Sasha Levin
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit db66abeea3aefed481391ecc564fb7b7fb31d742 ]
If userspace installs a lot of multicast groups very quickly, then
we may run out of command queue space as we send the updates in an
asynchronous fashion (due to locking concerns), and the CPU can
create them faster than the firmware can process them. This is true
even when mac80211 has a work struct that gets scheduled.
Fix this by synchronizing with the firmware after sending all those
commands - outside of the iteration we can send a synchronous echo
command that just has the effect of the CPU waiting for the prior
asynchronous commands to finish. This also will cause fewer of the
commands to be sent to the firmware overall, because the work will
only run once when rescheduled multiple times while it's running.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213649
Suggested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reported-by: Maximilian Ernestus <maximilian@ernestus.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204083238.51aea5b79ea4.I88a44798efda16e9fe480fb3e94224931d311b29@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/intel/iwlwifi/mvm/mac80211.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index d82d8cfe2e41c..f896758a3fa31 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1608,6 +1608,7 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
struct iwl_mvm_mc_iter_data iter_data = {
.mvm = mvm,
};
+ int ret;
lockdep_assert_held(&mvm->mutex);
@@ -1617,6 +1618,22 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
ieee80211_iterate_active_interfaces_atomic(
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_mc_iface_iterator, &iter_data);
+
+ /*
+ * Send a (synchronous) ech command so that we wait for the
+ * multiple asynchronous MCAST_FILTER_CMD commands sent by
+ * the interface iterator. Otherwise, we might get here over
+ * and over again (by userspace just sending a lot of these)
+ * and the CPU can send them faster than the firmware can
+ * process them.
+ * Note that the CPU is still faster - but with this we'll
+ * actually send fewer commands overall because the CPU will
+ * not schedule the work in mac80211 as frequently if it's
+ * still running when rescheduled (possibly multiple times).
+ */
+ ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
+ if (ret)
+ IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
}
static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 105/186] ath10k: Fix tx hanging
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (103 preceding siblings ...)
2022-01-24 18:42 ` [PATCH 4.14 104/186] iwlwifi: mvm: synchronize with FW after multicast commands Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 106/186] net: bonding: debug: avoid printing debug logs when bond is not notifying peers Greg Kroah-Hartman
` (81 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sebastian Gottschall, Kalle Valo,
Sasha Levin
From: Sebastian Gottschall <s.gottschall@dd-wrt.com>
[ Upstream commit e8a91863eba3966a447d2daa1526082d52b5db2a ]
While running stress tests in roaming scenarios (switching ap's every 5
seconds, we discovered a issue which leads to tx hangings of exactly 5
seconds while or after scanning for new accesspoints. We found out that
this hanging is triggered by ath10k_mac_wait_tx_complete since the
empty_tx_wq was not wake when the num_tx_pending counter reaches zero.
To fix this, we simply move the wake_up call to htt_tx_dec_pending,
since this call was missed on several locations within the ath10k code.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20210505085806.11474-1-s.gottschall@dd-wrt.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath10k/htt_tx.c | 3 +++
drivers/net/wireless/ath/ath10k/txrx.c | 2 --
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 685faac1368fd..21f5fb68b2046 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -158,6 +158,9 @@ void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
htt->num_pending_tx--;
if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+
+ if (htt->num_pending_tx == 0)
+ wake_up(&htt->empty_tx_wq);
}
int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 9999c8c40269d..e6705a30f3799 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -90,8 +90,6 @@ int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
ath10k_htt_tx_dec_pending(htt);
- if (htt->num_pending_tx == 0)
- wake_up(&htt->empty_tx_wq);
spin_unlock_bh(&htt->tx_lock);
dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 106/186] net: bonding: debug: avoid printing debug logs when bond is not notifying peers
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (104 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 105/186] ath10k: Fix tx hanging Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 107/186] bpf: Do not WARN in bpf_warn_invalid_xdp_action() Greg Kroah-Hartman
` (80 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Suresh Kumar, David S. Miller, Sasha Levin
From: Suresh Kumar <surkumar@redhat.com>
[ Upstream commit fee32de284ac277ba434a2d59f8ce46528ff3946 ]
Currently "bond_should_notify_peers: slave ..." messages are printed whenever
"bond_should_notify_peers" function is called.
+++
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Received LACPDU on port 1
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Rx Machine: Port=1, Last State=6, Curr State=6
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): partner sync=1
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
...
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Received LACPDU on port 2
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Rx Machine: Port=2, Last State=6, Curr State=6
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): partner sync=1
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
+++
This is confusing and can also clutter up debug logs.
Print logs only when the peer notification happens.
Signed-off-by: Suresh Kumar <suresh2514@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/bonding/bond_main.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 340e7bf6463ec..7096fcbf699c0 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -782,14 +782,14 @@ static bool bond_should_notify_peers(struct bonding *bond)
slave = rcu_dereference(bond->curr_active_slave);
rcu_read_unlock();
- netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n",
- slave ? slave->dev->name : "NULL");
-
if (!slave || !bond->send_peer_notif ||
!netif_carrier_ok(bond->dev) ||
test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
return false;
+ netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n",
+ slave ? slave->dev->name : "NULL");
+
return true;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 107/186] bpf: Do not WARN in bpf_warn_invalid_xdp_action()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (105 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 106/186] net: bonding: debug: avoid printing debug logs when bond is not notifying peers Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 108/186] media: igorplugusb: receiver overflow should be reported Greg Kroah-Hartman
` (79 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Paolo Abeni, Daniel Borkmann,
Toke Høiland-Jørgensen, Sasha Levin
From: Paolo Abeni <pabeni@redhat.com>
[ Upstream commit 2cbad989033bff0256675c38f96f5faab852af4b ]
The WARN_ONCE() in bpf_warn_invalid_xdp_action() can be triggered by
any bugged program, and even attaching a correct program to a NIC
not supporting the given action.
The resulting splat, beyond polluting the logs, fouls automated tools:
e.g. a syzkaller reproducers using an XDP program returning an
unsupported action will never pass validation.
Replace the WARN_ONCE with a less intrusive pr_warn_once().
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/016ceec56e4817ebb2a9e35ce794d5c917df572c.1638189075.git.pabeni@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/core/filter.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/core/filter.c b/net/core/filter.c
index 40b378bed6033..729e302bba6e9 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -3644,9 +3644,9 @@ void bpf_warn_invalid_xdp_action(u32 act)
{
const u32 act_max = XDP_REDIRECT;
- WARN_ONCE(1, "%s XDP return value %u, expect packet loss!\n",
- act > act_max ? "Illegal" : "Driver unsupported",
- act);
+ pr_warn_once("%s XDP return value %u, expect packet loss!\n",
+ act > act_max ? "Illegal" : "Driver unsupported",
+ act);
}
EXPORT_SYMBOL_GPL(bpf_warn_invalid_xdp_action);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 108/186] media: igorplugusb: receiver overflow should be reported
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (106 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 107/186] bpf: Do not WARN in bpf_warn_invalid_xdp_action() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 109/186] media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach() Greg Kroah-Hartman
` (78 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Young, Mauro Carvalho Chehab,
Sasha Levin
From: Sean Young <sean@mess.org>
[ Upstream commit 8fede658e7ddb605bbd68ed38067ddb0af033db4 ]
Without this, some IR will be missing mid-stream and we might decode
something which never really occurred.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/rc/igorplugusb.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/rc/igorplugusb.c b/drivers/media/rc/igorplugusb.c
index a5ea86be8f449..2a0325d1f9def 100644
--- a/drivers/media/rc/igorplugusb.c
+++ b/drivers/media/rc/igorplugusb.c
@@ -73,9 +73,11 @@ static void igorplugusb_irdata(struct igorplugusb *ir, unsigned len)
if (start >= len) {
dev_err(ir->dev, "receive overflow invalid: %u", overflow);
} else {
- if (overflow > 0)
+ if (overflow > 0) {
dev_warn(ir->dev, "receive overflow, at least %u lost",
overflow);
+ ir_raw_event_reset(ir->rc);
+ }
do {
rawir.duration = ir->buf_in[i] * 85333;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 109/186] media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (107 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 108/186] media: igorplugusb: receiver overflow should be reported Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 110/186] mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO Greg Kroah-Hartman
` (77 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhou Qingyang, Mauro Carvalho Chehab,
Sasha Levin
From: Zhou Qingyang <zhou1615@umn.edu>
[ Upstream commit 3af86b046933ba513d08399dba0d4d8b50d607d0 ]
In hexium_attach(dev, info), saa7146_vv_init() is called to allocate
a new memory for dev->vv_data. saa7146_vv_release() will be called on
failure of saa7146_register_device(). There is a dereference of
dev->vv_data in saa7146_vv_release(), which could lead to a NULL
pointer dereference on failure of saa7146_vv_init().
Fix this bug by adding a check of saa7146_vv_init().
This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.
Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.
Builds with CONFIG_VIDEO_HEXIUM_GEMINI=m show no new warnings,
and our static analyzer no longer warns about this code.
Link: https://lore.kernel.org/linux-media/20211203154030.111210-1-zhou1615@umn.edu
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/common/saa7146/saa7146_fops.c | 2 +-
drivers/media/pci/saa7146/hexium_gemini.c | 7 ++++++-
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c
index 930d2c94d5d30..2c9365a39270a 100644
--- a/drivers/media/common/saa7146/saa7146_fops.c
+++ b/drivers/media/common/saa7146/saa7146_fops.c
@@ -524,7 +524,7 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
ERR("out of memory. aborting.\n");
kfree(vv);
v4l2_ctrl_handler_free(hdl);
- return -1;
+ return -ENOMEM;
}
saa7146_video_uops.init(dev,vv);
diff --git a/drivers/media/pci/saa7146/hexium_gemini.c b/drivers/media/pci/saa7146/hexium_gemini.c
index a527d86b93a77..7f498aebb4112 100644
--- a/drivers/media/pci/saa7146/hexium_gemini.c
+++ b/drivers/media/pci/saa7146/hexium_gemini.c
@@ -296,7 +296,12 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d
hexium_set_input(hexium, 0);
hexium->cur_input = 0;
- saa7146_vv_init(dev, &vv_data);
+ ret = saa7146_vv_init(dev, &vv_data);
+ if (ret) {
+ i2c_del_adapter(&hexium->i2c_adapter);
+ kfree(hexium);
+ return ret;
+ }
vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 110/186] mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (108 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 109/186] media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 111/186] arm64: tegra: Adjust length of CCPLEX cluster MMIO region Greg Kroah-Hartman
` (76 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, H. Nikolaus Schaller, Ulf Hansson,
Sasha Levin
From: Ulf Hansson <ulf.hansson@linaro.org>
[ Upstream commit 8c3e5b74b9e2146f564905e50ca716591c76d4f1 ]
The mmc core takes a specific path to support initializing of a
non-standard SDIO card. This is triggered by looking for the card-quirk,
MMC_QUIRK_NONSTD_SDIO.
In mmc_sdio_init_card() this gets rather messy, as it causes the code to
bail out earlier, compared to the usual path. This leads to that the OCR
doesn't get saved properly in card->ocr. Fortunately, only omap_hsmmc has
been using the MMC_QUIRK_NONSTD_SDIO and is dealing with the issue, by
assigning a hardcoded value (0x80) to card->ocr from an ->init_card() ops.
To make the behaviour consistent, let's instead rely on the core to save
the OCR in card->ocr during initialization.
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/e7936cff7fc24d187ef2680d3b4edb0ade58f293.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/core/sdio.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 7568cea559220..bf0a0ef60d6b4 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -631,6 +631,8 @@ try_again:
if (host->ops->init_card)
host->ops->init_card(host, card);
+ card->ocr = ocr_card;
+
/*
* If the host and card support UHS-I mode request the card
* to switch to 1.8V signaling level. No 1.8v signalling if
@@ -737,7 +739,7 @@ try_again:
card = oldcard;
}
- card->ocr = ocr_card;
+
mmc_fixup_device(card, sdio_fixup_methods);
if (card->type == MMC_TYPE_SD_COMBO) {
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 111/186] arm64: tegra: Adjust length of CCPLEX cluster MMIO region
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (109 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 110/186] mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 112/186] usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0 Greg Kroah-Hartman
` (75 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Thierry Reding, Sasha Levin
From: Thierry Reding <treding@nvidia.com>
[ Upstream commit 2b14cbd643feea5fc17c6e8bead4e71088c69acd ]
The Tegra186 CCPLEX cluster register region is 4 MiB is length, not 4
MiB - 1. This was likely presumed to be the "limit" rather than length.
Fix it up.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/nvidia/tegra186.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index a9c3eef6c4e09..3307d816050fe 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -351,7 +351,7 @@
ccplex@e000000 {
compatible = "nvidia,tegra186-ccplex-cluster";
- reg = <0x0 0x0e000000 0x0 0x3fffff>;
+ reg = <0x0 0x0e000000 0x0 0x400000>;
nvidia,bpmp = <&bpmp>;
};
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 112/186] usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (110 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 111/186] arm64: tegra: Adjust length of CCPLEX cluster MMIO region Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 113/186] ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream Greg Kroah-Hartman
` (74 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alan Stern, Kai-Heng Feng, Sasha Levin
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
[ Upstream commit 00558586382891540c59c9febc671062425a6e47 ]
When a new USB device gets plugged to nested hubs, the affected hub,
which connects to usb 2-1.4-port2, doesn't report there's any change,
hence the nested hubs go back to runtime suspend like nothing happened:
[ 281.032951] usb usb2: usb wakeup-resume
[ 281.032959] usb usb2: usb auto-resume
[ 281.032974] hub 2-0:1.0: hub_resume
[ 281.033011] usb usb2-port1: status 0263 change 0000
[ 281.033077] hub 2-0:1.0: state 7 ports 4 chg 0000 evt 0000
[ 281.049797] usb 2-1: usb wakeup-resume
[ 281.069800] usb 2-1: Waited 0ms for CONNECT
[ 281.069810] usb 2-1: finish resume
[ 281.070026] hub 2-1:1.0: hub_resume
[ 281.070250] usb 2-1-port4: status 0203 change 0000
[ 281.070272] usb usb2-port1: resume, status 0
[ 281.070282] hub 2-1:1.0: state 7 ports 4 chg 0010 evt 0000
[ 281.089813] usb 2-1.4: usb wakeup-resume
[ 281.109792] usb 2-1.4: Waited 0ms for CONNECT
[ 281.109801] usb 2-1.4: finish resume
[ 281.109991] hub 2-1.4:1.0: hub_resume
[ 281.110147] usb 2-1.4-port2: status 0263 change 0000
[ 281.110234] usb 2-1-port4: resume, status 0
[ 281.110239] usb 2-1-port4: status 0203, change 0000, 10.0 Gb/s
[ 281.110266] hub 2-1.4:1.0: state 7 ports 4 chg 0000 evt 0000
[ 281.110426] hub 2-1.4:1.0: hub_suspend
[ 281.110565] usb 2-1.4: usb auto-suspend, wakeup 1
[ 281.130998] hub 2-1:1.0: hub_suspend
[ 281.137788] usb 2-1: usb auto-suspend, wakeup 1
[ 281.142935] hub 2-0:1.0: state 7 ports 4 chg 0000 evt 0000
[ 281.177828] usb 2-1: usb wakeup-resume
[ 281.197839] usb 2-1: Waited 0ms for CONNECT
[ 281.197850] usb 2-1: finish resume
[ 281.197984] hub 2-1:1.0: hub_resume
[ 281.198203] usb 2-1-port4: status 0203 change 0000
[ 281.198228] usb usb2-port1: resume, status 0
[ 281.198237] hub 2-1:1.0: state 7 ports 4 chg 0010 evt 0000
[ 281.217835] usb 2-1.4: usb wakeup-resume
[ 281.237834] usb 2-1.4: Waited 0ms for CONNECT
[ 281.237845] usb 2-1.4: finish resume
[ 281.237990] hub 2-1.4:1.0: hub_resume
[ 281.238067] usb 2-1.4-port2: status 0263 change 0000
[ 281.238148] usb 2-1-port4: resume, status 0
[ 281.238152] usb 2-1-port4: status 0203, change 0000, 10.0 Gb/s
[ 281.238166] hub 2-1.4:1.0: state 7 ports 4 chg 0000 evt 0000
[ 281.238385] hub 2-1.4:1.0: hub_suspend
[ 281.238523] usb 2-1.4: usb auto-suspend, wakeup 1
[ 281.258076] hub 2-1:1.0: hub_suspend
[ 281.265744] usb 2-1: usb auto-suspend, wakeup 1
[ 281.285976] hub 2-0:1.0: hub_suspend
[ 281.285988] usb usb2: bus auto-suspend, wakeup 1
USB 3.2 spec, 9.2.5.4 "Changing Function Suspend State" says that "If
the link is in a non-U0 state, then the device must transition the link
to U0 prior to sending the remote wake message", but the hub only
transits the link to U0 after signaling remote wakeup.
So be more forgiving and use a 20ms delay to let the link transit to U0
for remote wakeup.
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20211215120108.336597-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/core/hub.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index a9a57c88139df..132828b56cf83 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1077,7 +1077,10 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
} else {
hub_power_on(hub, true);
}
- }
+ /* Give some time on remote wakeup to let links to transit to U0 */
+ } else if (hub_is_superspeed(hub->hdev))
+ msleep(20);
+
init2:
/*
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 113/186] ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (111 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 112/186] usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0 Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 114/186] iwlwifi: fix leaks/bad data after failed firmware load Greg Kroah-Hartman
` (73 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zekun Shen, Kalle Valo, Sasha Levin
From: Zekun Shen <bruceshenzk@gmail.com>
[ Upstream commit 6ce708f54cc8d73beca213cec66ede5ce100a781 ]
Large pkt_len can lead to out-out-bound memcpy. Current
ath9k_hif_usb_rx_stream allows combining the content of two urb
inputs to one pkt. The first input can indicate the size of the
pkt. Any remaining size is saved in hif_dev->rx_remain_len.
While processing the next input, memcpy is used with rx_remain_len.
4-byte pkt_len can go up to 0xffff, while a single input is 0x4000
maximum in size (MAX_RX_BUF_SIZE). Thus, the patch adds a check for
pkt_len which must not exceed 2 * MAX_RX_BUG_SIZE.
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
Read of size 46393 at addr ffff888018798000 by task kworker/0:1/23
CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 5.6.0 #63
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
Workqueue: events request_firmware_work_func
Call Trace:
<IRQ>
dump_stack+0x76/0xa0
print_address_description.constprop.0+0x16/0x200
? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
__kasan_report.cold+0x37/0x7c
? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
kasan_report+0xe/0x20
check_memory_region+0x15a/0x1d0
memcpy+0x20/0x50
ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
? hif_usb_mgmt_cb+0x2d9/0x2d9 [ath9k_htc]
? _raw_spin_lock_irqsave+0x7b/0xd0
? _raw_spin_trylock_bh+0x120/0x120
? __usb_unanchor_urb+0x12f/0x210
__usb_hcd_giveback_urb+0x1e4/0x380
usb_giveback_urb_bh+0x241/0x4f0
? __hrtimer_run_queues+0x316/0x740
? __usb_hcd_giveback_urb+0x380/0x380
tasklet_action_common.isra.0+0x135/0x330
__do_softirq+0x18c/0x634
irq_exit+0x114/0x140
smp_apic_timer_interrupt+0xde/0x380
apic_timer_interrupt+0xf/0x20
I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.
After fixing the value of pkt_tag to ATH_USB_RX_STREAM_MODE_TAG in QEMU
emulation, I found the KASAN report. The bug is triggerable whenever
pkt_len is above two MAX_RX_BUG_SIZE. I used the same input that crashes
to test the driver works when applying the patch.
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/YXsidrRuK6zBJicZ@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath9k/hif_usb.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index ce3a785212740..8125f17526519 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -588,6 +588,13 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
return;
}
+ if (pkt_len > 2 * MAX_RX_BUF_SIZE) {
+ dev_err(&hif_dev->udev->dev,
+ "ath9k_htc: invalid pkt_len (%x)\n", pkt_len);
+ RX_STAT_INC(skb_dropped);
+ return;
+ }
+
pad_len = 4 - (pkt_len & 0x3);
if (pad_len == 4)
pad_len = 0;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 114/186] iwlwifi: fix leaks/bad data after failed firmware load
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (112 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 113/186] ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 115/186] iwlwifi: remove module loading failure message Greg Kroah-Hartman
` (72 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johannes Berg, Luca Coelho, Sasha Levin
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit ab07506b0454bea606095951e19e72c282bfbb42 ]
If firmware load fails after having loaded some parts of the
firmware, e.g. the IML image, then this would leak. For the
host command list we'd end up running into a WARN on the next
attempt to load another firmware image.
Fix this by calling iwl_dealloc_ucode() on failures, and make
that also clear the data so we start fresh on the next round.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211210110539.1f742f0eb58a.I1315f22f6aa632d94ae2069f85e1bca5e734dce0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 6c10b8c4ddbe5..95101f66a886e 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -182,6 +182,9 @@ static void iwl_dealloc_ucode(struct iwl_drv *drv)
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
iwl_free_fw_img(drv, drv->fw.img + i);
+
+ /* clear the data for the aborted load case */
+ memset(&drv->fw, 0, sizeof(drv->fw));
}
static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
@@ -1271,6 +1274,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
int i;
bool load_module = false;
bool usniffer_images = false;
+ bool failure = true;
fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
fw->ucode_capa.standard_phy_calibration_size =
@@ -1499,6 +1503,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
op->name, err);
#endif
}
+ failure = false;
goto free;
try_again:
@@ -1514,6 +1519,9 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
complete(&drv->request_firmware_complete);
device_release_driver(drv->trans->dev);
free:
+ if (failure)
+ iwl_dealloc_ucode(drv);
+
if (pieces) {
for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
kfree(pieces->img[i].sec);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 115/186] iwlwifi: remove module loading failure message
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (113 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 114/186] iwlwifi: fix leaks/bad data after failed firmware load Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 116/186] um: registers: Rename function names to avoid conflicts and build problems Greg Kroah-Hartman
` (71 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johannes Berg, Luca Coelho, Sasha Levin
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit 6518f83ffa51131daaf439b66094f684da3fb0ae ]
When CONFIG_DEBUG_TEST_DRIVER_REMOVE is set, iwlwifi crashes
when the opmode module cannot be loaded, due to completing
the completion before using drv->dev, which can then already
be freed.
Fix this by removing the (fairly useless) message. Moving the
completion later causes a deadlock instead, so that's not an
option.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20211210091245.289008-2-luca@coelho.fi
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 95101f66a886e..ade3c27050471 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1494,15 +1494,8 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
* else from proceeding if the module fails to load
* or hangs loading.
*/
- if (load_module) {
+ if (load_module)
request_module("%s", op->name);
-#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
- if (err)
- IWL_ERR(drv,
- "failed to load module %s (error %d), is dynamic loading enabled?\n",
- op->name, err);
-#endif
- }
failure = false;
goto free;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 116/186] um: registers: Rename function names to avoid conflicts and build problems
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (114 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 115/186] iwlwifi: remove module loading failure message Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 117/186] jffs2: GC deadlock reading a page that is used in jffs2_write_begin() Greg Kroah-Hartman
` (70 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Jeff Dike,
Richard Weinberger, Anton Ivanov, linux-um, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 077b7320942b64b0da182aefd83c374462a65535 ]
The function names init_registers() and restore_registers() are used
in several net/ethernet/ and gpu/drm/ drivers for other purposes (not
calls to UML functions), so rename them.
This fixes multiple build errors.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: linux-um@lists.infradead.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/um/include/shared/registers.h | 4 ++--
arch/um/os-Linux/registers.c | 4 ++--
arch/um/os-Linux/start_up.c | 2 +-
arch/x86/um/syscalls_64.c | 3 ++-
4 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/arch/um/include/shared/registers.h b/arch/um/include/shared/registers.h
index a74449b5b0e31..12ad7c435e97f 100644
--- a/arch/um/include/shared/registers.h
+++ b/arch/um/include/shared/registers.h
@@ -16,8 +16,8 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs);
extern int save_fpx_registers(int pid, unsigned long *fp_regs);
extern int restore_fpx_registers(int pid, unsigned long *fp_regs);
extern int save_registers(int pid, struct uml_pt_regs *regs);
-extern int restore_registers(int pid, struct uml_pt_regs *regs);
-extern int init_registers(int pid);
+extern int restore_pid_registers(int pid, struct uml_pt_regs *regs);
+extern int init_pid_registers(int pid);
extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs);
extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
extern int get_fp_registers(int pid, unsigned long *regs);
diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c
index 2ff8d4fe83c4f..34a5963bd7efd 100644
--- a/arch/um/os-Linux/registers.c
+++ b/arch/um/os-Linux/registers.c
@@ -21,7 +21,7 @@ int save_registers(int pid, struct uml_pt_regs *regs)
return 0;
}
-int restore_registers(int pid, struct uml_pt_regs *regs)
+int restore_pid_registers(int pid, struct uml_pt_regs *regs)
{
int err;
@@ -36,7 +36,7 @@ int restore_registers(int pid, struct uml_pt_regs *regs)
static unsigned long exec_regs[MAX_REG_NR];
static unsigned long exec_fp_regs[FP_SIZE];
-int init_registers(int pid)
+int init_pid_registers(int pid)
{
int err;
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 82bf5f8442ba4..2c75f2d638681 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -336,7 +336,7 @@ void __init os_early_checks(void)
check_tmpexec();
pid = start_ptraced_child();
- if (init_registers(pid))
+ if (init_pid_registers(pid))
fatal("Failed to initialize default registers");
stop_ptraced_child(pid, 1, 1);
}
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index 58f51667e2e4b..8249685b40960 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -11,6 +11,7 @@
#include <linux/uaccess.h>
#include <asm/prctl.h> /* XXX This should get the constants from libc */
#include <os.h>
+#include <registers.h>
long arch_prctl(struct task_struct *task, int option,
unsigned long __user *arg2)
@@ -35,7 +36,7 @@ long arch_prctl(struct task_struct *task, int option,
switch (option) {
case ARCH_SET_FS:
case ARCH_SET_GS:
- ret = restore_registers(pid, ¤t->thread.regs.regs);
+ ret = restore_pid_registers(pid, ¤t->thread.regs.regs);
if (ret)
return ret;
break;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 117/186] jffs2: GC deadlock reading a page that is used in jffs2_write_begin()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (115 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 116/186] um: registers: Rename function names to avoid conflicts and build problems Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 118/186] ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions Greg Kroah-Hartman
` (69 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kyeong Yoo, Richard Weinberger, Sasha Levin
From: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>
[ Upstream commit aa39cc675799bc92da153af9a13d6f969c348e82 ]
GC task can deadlock in read_cache_page() because it may attempt
to release a page that is actually allocated by another task in
jffs2_write_begin().
The reason is that in jffs2_write_begin() there is a small window
a cache page is allocated for use but not set Uptodate yet.
This ends up with a deadlock between two tasks:
1) A task (e.g. file copy)
- jffs2_write_begin() locks a cache page
- jffs2_write_end() tries to lock "alloc_sem" from
jffs2_reserve_space() <-- STUCK
2) GC task (jffs2_gcd_mtd3)
- jffs2_garbage_collect_pass() locks "alloc_sem"
- try to lock the same cache page in read_cache_page() <-- STUCK
So to avoid this deadlock, hold "alloc_sem" in jffs2_write_begin()
while reading data in a cache page.
Signed-off-by: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/jffs2/file.c | 40 +++++++++++++++++++++++++---------------
1 file changed, 25 insertions(+), 15 deletions(-)
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index bd0428bebe9b7..221eb2bd205e4 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -135,20 +135,15 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
struct page *pg;
struct inode *inode = mapping->host;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
pgoff_t index = pos >> PAGE_SHIFT;
uint32_t pageofs = index << PAGE_SHIFT;
int ret = 0;
- pg = grab_cache_page_write_begin(mapping, index, flags);
- if (!pg)
- return -ENOMEM;
- *pagep = pg;
-
jffs2_dbg(1, "%s()\n", __func__);
if (pageofs > inode->i_size) {
/* Make new hole frag from old EOF to new page */
- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_raw_inode ri;
struct jffs2_full_dnode *fn;
uint32_t alloc_len;
@@ -159,7 +154,7 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret)
- goto out_page;
+ goto out_err;
mutex_lock(&f->sem);
memset(&ri, 0, sizeof(ri));
@@ -189,7 +184,7 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
ret = PTR_ERR(fn);
jffs2_complete_reservation(c);
mutex_unlock(&f->sem);
- goto out_page;
+ goto out_err;
}
ret = jffs2_add_full_dnode_to_inode(c, f, fn);
if (f->metadata) {
@@ -204,13 +199,26 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
jffs2_free_full_dnode(fn);
jffs2_complete_reservation(c);
mutex_unlock(&f->sem);
- goto out_page;
+ goto out_err;
}
jffs2_complete_reservation(c);
inode->i_size = pageofs;
mutex_unlock(&f->sem);
}
+ /*
+ * While getting a page and reading data in, lock c->alloc_sem until
+ * the page is Uptodate. Otherwise GC task may attempt to read the same
+ * page in read_cache_page(), which causes a deadlock.
+ */
+ mutex_lock(&c->alloc_sem);
+ pg = grab_cache_page_write_begin(mapping, index, flags);
+ if (!pg) {
+ ret = -ENOMEM;
+ goto release_sem;
+ }
+ *pagep = pg;
+
/*
* Read in the page if it wasn't already present. Cannot optimize away
* the whole page write case until jffs2_write_end can handle the
@@ -220,15 +228,17 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
mutex_lock(&f->sem);
ret = jffs2_do_readpage_nolock(inode, pg);
mutex_unlock(&f->sem);
- if (ret)
- goto out_page;
+ if (ret) {
+ unlock_page(pg);
+ put_page(pg);
+ goto release_sem;
+ }
}
jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags);
- return ret;
-out_page:
- unlock_page(pg);
- put_page(pg);
+release_sem:
+ mutex_unlock(&c->alloc_sem);
+out_err:
return ret;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 118/186] ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (116 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 117/186] jffs2: GC deadlock reading a page that is used in jffs2_write_begin() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 119/186] ACPICA: Utilities: Avoid deleting the same object twice in a row Greg Kroah-Hartman
` (68 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mark Langsdorf, Bob Moore,
Rafael J. Wysocki, Sasha Levin
From: Mark Langsdorf <mlangsdo@redhat.com>
[ Upstream commit f81bdeaf816142e0729eea0cc84c395ec9673151 ]
ACPICA commit bc02c76d518135531483dfc276ed28b7ee632ce1
The current ACPI_ACCESS_*_WIDTH defines do not provide a way to
test that size is small enough to not cause an overflow when
applied to a 32-bit integer.
Rather than adding more magic numbers, add ACPI_ACCESS_*_SHIFT,
ACPI_ACCESS_*_MAX, and ACPI_ACCESS_*_DEFAULT #defines and
redefine ACPI_ACCESS_*_WIDTH in terms of the new #defines.
This was inititally reported on Linux where a size of 102 in
ACPI_ACCESS_BIT_WIDTH caused an overflow error in the SPCR
initialization code.
Link: https://github.com/acpica/acpica/commit/bc02c76d
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/acpi/actypes.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 71fadbe77e211..2c5df69e67819 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -560,8 +560,14 @@ typedef u64 acpi_integer;
* Can be used with access_width of struct acpi_generic_address and access_size of
* struct acpi_resource_generic_register.
*/
-#define ACPI_ACCESS_BIT_WIDTH(size) (1 << ((size) + 2))
-#define ACPI_ACCESS_BYTE_WIDTH(size) (1 << ((size) - 1))
+#define ACPI_ACCESS_BIT_SHIFT 2
+#define ACPI_ACCESS_BYTE_SHIFT -1
+#define ACPI_ACCESS_BIT_MAX (31 - ACPI_ACCESS_BIT_SHIFT)
+#define ACPI_ACCESS_BYTE_MAX (31 - ACPI_ACCESS_BYTE_SHIFT)
+#define ACPI_ACCESS_BIT_DEFAULT (8 - ACPI_ACCESS_BIT_SHIFT)
+#define ACPI_ACCESS_BYTE_DEFAULT (8 - ACPI_ACCESS_BYTE_SHIFT)
+#define ACPI_ACCESS_BIT_WIDTH(size) (1 << ((size) + ACPI_ACCESS_BIT_SHIFT))
+#define ACPI_ACCESS_BYTE_WIDTH(size) (1 << ((size) + ACPI_ACCESS_BYTE_SHIFT))
/*******************************************************************************
*
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 119/186] ACPICA: Utilities: Avoid deleting the same object twice in a row
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (117 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 118/186] ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 120/186] ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R() Greg Kroah-Hartman
` (67 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mark Asselstine, Rafael J. Wysocki,
Bob Moore, Sasha Levin
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Upstream commit 1cdfe9e346b4c5509ffe19ccde880fd259d9f7a3 ]
ACPICA commit c11af67d8f7e3d381068ce7771322f2b5324d687
If original_count is 0 in acpi_ut_update_ref_count (),
acpi_ut_delete_internal_obj () is invoked for the target object, which is
incorrect, because that object has been deleted once already and the
memory allocated to store it may have been reclaimed and allocated
for a different purpose by the host OS. Moreover, a confusing debug
message following the "Reference Count is already zero, cannot
decrement" warning is printed in that case.
To fix this issue, make acpi_ut_update_ref_count () return after finding
that original_count is 0 and printing the above warning.
Link: https://github.com/acpica/acpica/commit/c11af67d
Link: https://github.com/acpica/acpica/pull/652
Reported-by: Mark Asselstine <mark.asselstine@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpica/utdelete.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 61a979d0fbc5a..64a90ba71f18c 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -442,6 +442,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
ACPI_WARNING((AE_INFO,
"Obj %p, Reference Count is already zero, cannot decrement\n",
object));
+ return;
}
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 120/186] ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (118 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 119/186] ACPICA: Utilities: Avoid deleting the same object twice in a row Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 121/186] ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5 Greg Kroah-Hartman
` (66 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lenny Szubowicz, Rafael J. Wysocki,
Bob Moore, Sasha Levin
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Upstream commit 24ea5f90ec9548044a6209685c5010edd66ffe8f ]
ACPICA commit d984f12041392fa4156b52e2f7e5c5e7bc38ad9e
If Operand[0] is a reference of the ACPI_REFCLASS_REFOF class,
acpi_ex_opcode_1A_0T_1R () calls acpi_ns_get_attached_object () to
obtain return_desc which may require additional resolution with
the help of acpi_ex_read_data_from_field (). If the latter fails,
the reference counter of the original return_desc is decremented
which is incorrect, because acpi_ns_get_attached_object () does not
increment the reference counter of the object returned by it.
This issue may lead to premature deletion of the attached object
while it is still attached and a use-after-free and crash in the
host OS. For example, this may happen when on evaluation of ref_of()
a local region field where there is no registered handler for the
given Operation Region.
Fix it by making acpi_ex_opcode_1A_0T_1R () return Status right away
after a acpi_ex_read_data_from_field () failure.
Link: https://github.com/acpica/acpica/commit/d984f120
Link: https://github.com/acpica/acpica/pull/685
Reported-by: Lenny Szubowicz <lszubowi@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpica/exoparg1.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index f787651348c11..9f4dbdb70111a 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -1041,7 +1041,8 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
(walk_state, return_desc,
&temp_desc);
if (ACPI_FAILURE(status)) {
- goto cleanup;
+ return_ACPI_STATUS
+ (status);
}
return_desc = temp_desc;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 121/186] ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (119 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 120/186] ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 122/186] btrfs: remove BUG_ON() in find_parent_nodes() Greg Kroah-Hartman
` (65 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kirill A. Shutemov,
Rafael J. Wysocki, Bob Moore, Sasha Levin
From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[ Upstream commit 1d4e0b3abb168b2ee1eca99c527cffa1b80b6161 ]
ACPICA commit 3dd7e1f3996456ef81bfe14cba29860e8d42949e
According to ACPI 6.4, Section 16.2, the CPU cache flushing is
required on entering to S1, S2, and S3, but the ACPICA code
flushes the CPU cache regardless of the sleep state.
Blind cache flush on entering S5 causes problems for TDX.
Flushing happens with WBINVD that is not supported in the TDX
environment.
TDX only supports S5 and adjusting ACPICA code to conform to the
spec more strictly fixes the issue.
Link: https://github.com/acpica/acpica/commit/3dd7e1f3
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpica/hwesleep.c | 4 +++-
drivers/acpi/acpica/hwsleep.c | 4 +++-
drivers/acpi/acpica/hwxfsleep.c | 2 --
3 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 7f8c57177819f..45b392fa36657 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -138,7 +138,9 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
/* Flush caches, as per ACPI specification */
- ACPI_FLUSH_CPU_CACHE();
+ if (sleep_state < ACPI_STATE_S4) {
+ ACPI_FLUSH_CPU_CACHE();
+ }
status = acpi_os_enter_sleep(sleep_state, sleep_control, 0);
if (status == AE_CTRL_TERMINATE) {
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 2c54d08b20ca6..9e50529bb3cc9 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -149,7 +149,9 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
/* Flush caches, as per ACPI specification */
- ACPI_FLUSH_CPU_CACHE();
+ if (sleep_state < ACPI_STATE_S4) {
+ ACPI_FLUSH_CPU_CACHE();
+ }
status = acpi_os_enter_sleep(sleep_state, pm1a_control, pm1b_control);
if (status == AE_CTRL_TERMINATE) {
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 827c3242225d9..b3c7736611908 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -223,8 +223,6 @@ acpi_status acpi_enter_sleep_state_s4bios(void)
return_ACPI_STATUS(status);
}
- ACPI_FLUSH_CPU_CACHE();
-
status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
(u32)acpi_gbl_FADT.s4_bios_request, 8);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 122/186] btrfs: remove BUG_ON() in find_parent_nodes()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (120 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 121/186] ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5 Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 123/186] btrfs: remove BUG_ON(!eie) in find_parent_nodes Greg Kroah-Hartman
` (64 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Josef Bacik, David Sterba, Sasha Levin
From: Josef Bacik <josef@toxicpanda.com>
[ Upstream commit fcba0120edf88328524a4878d1d6f4ad39f2ec81 ]
We search for an extent entry with .offset = -1, which shouldn't be a
thing, but corruption happens. Add an ASSERT() for the developers,
return -EUCLEAN for mortals.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/backref.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 1cf75d1032e17..f2c2ac3343bac 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1163,7 +1163,12 @@ again:
ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 0);
if (ret < 0)
goto out;
- BUG_ON(ret == 0);
+ if (ret == 0) {
+ /* This shouldn't happen, indicates a bug or fs corruption. */
+ ASSERT(ret != 0);
+ ret = -EUCLEAN;
+ goto out;
+ }
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
if (trans && likely(trans->type != __TRANS_DUMMY) &&
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 123/186] btrfs: remove BUG_ON(!eie) in find_parent_nodes
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (121 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 122/186] btrfs: remove BUG_ON() in find_parent_nodes() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 124/186] net: mdio: Demote probed message to debug print Greg Kroah-Hartman
` (63 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Josef Bacik, David Sterba, Sasha Levin
From: Josef Bacik <josef@toxicpanda.com>
[ Upstream commit 9f05c09d6baef789726346397438cca4ec43c3ee ]
If we're looking for leafs that point to a data extent we want to record
the extent items that point at our bytenr. At this point we have the
reference and we know for a fact that this leaf should have a reference
to our bytenr. However if there's some sort of corruption we may not
find any references to our leaf, and thus could end up with eie == NULL.
Replace this BUG_ON() with an ASSERT() and then return -EUCLEAN for the
mortals.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/backref.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index f2c2ac3343bac..58dc96d7ecafa 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1315,10 +1315,18 @@ again:
goto out;
if (!ret && extent_item_pos) {
/*
- * we've recorded that parent, so we must extend
- * its inode list here
+ * We've recorded that parent, so we must extend
+ * its inode list here.
+ *
+ * However if there was corruption we may not
+ * have found an eie, return an error in this
+ * case.
*/
- BUG_ON(!eie);
+ ASSERT(eie);
+ if (!eie) {
+ ret = -EUCLEAN;
+ goto out;
+ }
while (eie->next)
eie = eie->next;
eie->next = ref->inode_list;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 124/186] net: mdio: Demote probed message to debug print
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (122 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 123/186] btrfs: remove BUG_ON(!eie) in find_parent_nodes Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 125/186] mac80211: allow non-standard VHT MCS-10/11 Greg Kroah-Hartman
` (62 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Bizon, Florian Fainelli,
Andrew Lunn, Jakub Kicinski, Sasha Levin
From: Florian Fainelli <f.fainelli@gmail.com>
[ Upstream commit 7590fc6f80ac2cbf23e6b42b668bbeded070850b ]
On systems with large numbers of MDIO bus/muxes the message indicating
that a given MDIO bus has been successfully probed is repeated for as
many buses we have, which can eat up substantial boot time for no
reason, demote to a debug print.
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220103194024.2620-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/phy/mdio_bus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 5ef9bbbab3dbb..7b9480ce21a21 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -392,7 +392,7 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
mdiobus_setup_mdiodev_from_board_info(bus, mdiobus_create_device);
bus->state = MDIOBUS_REGISTERED;
- pr_info("%s: probed\n", bus->name);
+ dev_dbg(&bus->dev, "probed\n");
return 0;
error:
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 125/186] mac80211: allow non-standard VHT MCS-10/11
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (123 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 124/186] net: mdio: Demote probed message to debug print Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 126/186] dm btree: add a defensive bounds check to insert_at() Greg Kroah-Hartman
` (61 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Goldwyn Rodrigues, Ping-Ke Shih,
Johannes Berg, Sasha Levin
From: Ping-Ke Shih <pkshih@realtek.com>
[ Upstream commit 04be6d337d37400ad5b3d5f27ca87645ee5a18a3 ]
Some AP can possibly try non-standard VHT rate and mac80211 warns and drops
packets, and leads low TCP throughput.
Rate marked as a VHT rate but data is invalid: MCS: 10, NSS: 2
WARNING: CPU: 1 PID: 7817 at net/mac80211/rx.c:4856 ieee80211_rx_list+0x223/0x2f0 [mac8021
Since commit c27aa56a72b8 ("cfg80211: add VHT rate entries for MCS-10 and MCS-11")
has added, mac80211 adds this support as well.
After this patch, throughput is good and iw can get the bitrate:
rx bitrate: 975.1 MBit/s VHT-MCS 10 80MHz short GI VHT-NSS 2
or
rx bitrate: 1083.3 MBit/s VHT-MCS 11 80MHz short GI VHT-NSS 2
Buglink: https://bugzilla.suse.com/show_bug.cgi?id=1192891
Reported-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20220103013623.17052-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/rx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index cbe1177d95f9e..13cae95a34662 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4434,7 +4434,7 @@ void ieee80211_rx_napi(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta,
goto drop;
break;
case RX_ENC_VHT:
- if (WARN_ONCE(status->rate_idx > 9 ||
+ if (WARN_ONCE(status->rate_idx > 11 ||
!status->nss ||
status->nss > 8,
"Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n",
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 126/186] dm btree: add a defensive bounds check to insert_at()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (124 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 125/186] mac80211: allow non-standard VHT MCS-10/11 Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 127/186] dm space map common: add bounds check to sm_ll_lookup_bitmap() Greg Kroah-Hartman
` (60 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joe Thornber, Mike Snitzer, Sasha Levin
From: Joe Thornber <ejt@redhat.com>
[ Upstream commit 85bca3c05b6cca31625437eedf2060e846c4bbad ]
Corrupt metadata could trigger an out of bounds write.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/md/persistent-data/dm-btree.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index 8aae0624a2971..6383afb88f319 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -83,14 +83,16 @@ void inc_children(struct dm_transaction_manager *tm, struct btree_node *n,
}
static int insert_at(size_t value_size, struct btree_node *node, unsigned index,
- uint64_t key, void *value)
- __dm_written_to_disk(value)
+ uint64_t key, void *value)
+ __dm_written_to_disk(value)
{
uint32_t nr_entries = le32_to_cpu(node->header.nr_entries);
+ uint32_t max_entries = le32_to_cpu(node->header.max_entries);
__le64 key_le = cpu_to_le64(key);
if (index > nr_entries ||
- index >= le32_to_cpu(node->header.max_entries)) {
+ index >= max_entries ||
+ nr_entries >= max_entries) {
DMERR("too many entries in btree node for insert");
__dm_unbless_for_disk(value);
return -ENOMEM;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 127/186] dm space map common: add bounds check to sm_ll_lookup_bitmap()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (125 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 126/186] dm btree: add a defensive bounds check to insert_at() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 128/186] net: phy: marvell: configure RGMII delays for 88E1118 Greg Kroah-Hartman
` (59 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joe Thornber, Mike Snitzer, Sasha Levin
From: Joe Thornber <ejt@redhat.com>
[ Upstream commit cba23ac158db7f3cd48a923d6861bee2eb7a2978 ]
Corrupted metadata could warrant returning error from sm_ll_lookup_bitmap().
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/md/persistent-data/dm-space-map-common.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index a2eceb12f01d4..1095b90307aed 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -279,6 +279,11 @@ int sm_ll_lookup_bitmap(struct ll_disk *ll, dm_block_t b, uint32_t *result)
struct disk_index_entry ie_disk;
struct dm_block *blk;
+ if (b >= ll->nr_blocks) {
+ DMERR_LIMIT("metadata block out of bounds");
+ return -EINVAL;
+ }
+
b = do_div(index, ll->entries_per_block);
r = ll->load_ie(ll, index, &ie_disk);
if (r < 0)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 128/186] net: phy: marvell: configure RGMII delays for 88E1118
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (126 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 127/186] dm space map common: add bounds check to sm_ll_lookup_bitmap() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 129/186] serial: pl010: Drop CR register reset on set_termios Greg Kroah-Hartman
` (58 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Corentin Labbe, Russell King (Oracle),
Andrew Lunn, Jakub Kicinski, Sasha Levin
From: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
[ Upstream commit f22725c95ececb703c3f741e8f946d23705630b7 ]
Corentin Labbe reports that the SSI 1328 does not work when allowing
the PHY to operate at gigabit speeds, but does work with the generic
PHY driver.
This appears to be because m88e1118_config_init() writes a fixed value
to the MSCR register, claiming that this is to enable 1G speeds.
However, this always sets bits 4 and 5, enabling RGMII transmit and
receive delays. The suspicion is that the original board this was
added for required the delays to make 1G speeds work.
Add the necessary configuration for RGMII delays for the 88E1118 to
bring this into line with the requirements for RGMII support, and thus
make the SSI 1328 work.
Corentin Labbe has tested this on gemini-ssi1328 and gemini-ns2502.
Reported-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/phy/marvell.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 727b991312a4e..3d8d765932934 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -938,6 +938,12 @@ static int m88e1118_config_init(struct phy_device *phydev)
if (err < 0)
return err;
+ if (phy_interface_is_rgmii(phydev)) {
+ err = m88e1121_config_aneg_rgmii_delays(phydev);
+ if (err < 0)
+ return err;
+ }
+
/* Adjust LED Control */
if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
err = phy_write(phydev, 0x10, 0x1100);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 129/186] serial: pl010: Drop CR register reset on set_termios
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (127 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 128/186] net: phy: marvell: configure RGMII delays for 88E1118 Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 130/186] serial: core: Keep mctrl register state and cached copy in sync Greg Kroah-Hartman
` (57 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Russell King, Lukas Wunner, Sasha Levin
From: Lukas Wunner <lukas@wunner.de>
[ Upstream commit 08a0c6dff91c965e39905cf200d22db989203ccb ]
pl010_set_termios() briefly resets the CR register to zero.
Where does this register write come from?
The PL010 driver's IRQ handler ambauart_int() originally modified the CR
register without holding the port spinlock. ambauart_set_termios() also
modified that register. To prevent concurrent read-modify-writes by the
IRQ handler and to prevent transmission while changing baudrate,
ambauart_set_termios() had to disable interrupts. That is achieved by
writing zero to the CR register.
However in 2004 the PL010 driver was amended to acquire the port
spinlock in the IRQ handler, obviating the need to disable interrupts in
->set_termios():
https://git.kernel.org/history/history/c/157c0342e591
That rendered the CR register write obsolete. Drop it.
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/fcaff16e5b1abb4cc3da5a2879ac13f278b99ed0.1641128728.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/amba-pl010.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 9ec4b8d2879f7..0698fbf3b6d61 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -465,14 +465,11 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
if ((termios->c_cflag & CREAD) == 0)
uap->port.ignore_status_mask |= UART_DUMMY_RSR_RX;
- /* first, disable everything */
old_cr = readb(uap->port.membase + UART010_CR) & ~UART010_CR_MSIE;
if (UART_ENABLE_MS(port, termios->c_cflag))
old_cr |= UART010_CR_MSIE;
- writel(0, uap->port.membase + UART010_CR);
-
/* Set baud rate */
quot -= 1;
writel((quot & 0xf00) >> 8, uap->port.membase + UART010_LCRM);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 130/186] serial: core: Keep mctrl register state and cached copy in sync
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (128 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 129/186] serial: pl010: Drop CR register reset on set_termios Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 131/186] parisc: Avoid calling faulthandler_disabled() twice Greg Kroah-Hartman
` (56 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Lukas Wunner, Sasha Levin
From: Lukas Wunner <lukas@wunner.de>
[ Upstream commit 93a770b7e16772530196674ffc79bb13fa927dc6 ]
struct uart_port contains a cached copy of the Modem Control signals.
It is used to skip register writes in uart_update_mctrl() if the new
signal state equals the old signal state. It also avoids a register
read to obtain the current state of output signals.
When a uart_port is registered, uart_configure_port() changes signal
state but neglects to keep the cached copy in sync. That may cause
a subsequent register write to be incorrectly skipped. Fix it before
it trips somebody up.
This behavior has been present ever since the serial core was introduced
in 2002:
https://git.kernel.org/history/history/c/33c0d1b0c3eb
So far it was never an issue because the cached copy is initialized to 0
by kzalloc() and when uart_configure_port() is executed, at most DTR has
been set by uart_set_options() or sunsu_console_setup(). Therefore,
a stable designation seems unnecessary.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/bceeaba030b028ed810272d55d5fc6f3656ddddb.1641129752.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/serial_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 16ce187390d8b..5f9a52883bc05 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2361,7 +2361,8 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state,
* We probably don't need a spinlock around this, but
*/
spin_lock_irqsave(&port->lock, flags);
- port->ops->set_mctrl(port, port->mctrl & TIOCM_DTR);
+ port->mctrl &= TIOCM_DTR;
+ port->ops->set_mctrl(port, port->mctrl);
spin_unlock_irqrestore(&port->lock, flags);
/*
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 131/186] parisc: Avoid calling faulthandler_disabled() twice
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (129 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 130/186] serial: core: Keep mctrl register state and cached copy in sync Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 132/186] powerpc/6xx: add missing of_node_put Greg Kroah-Hartman
` (55 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, John David Anglin, Helge Deller, Sasha Levin
From: John David Anglin <dave.anglin@bell.net>
[ Upstream commit 9e9d4b460f23bab61672eae397417d03917d116c ]
In handle_interruption(), we call faulthandler_disabled() to check whether the
fault handler is not disabled. If the fault handler is disabled, we immediately
call do_page_fault(). It then calls faulthandler_disabled(). If disabled,
do_page_fault() attempts to fixup the exception by jumping to no_context:
no_context:
if (!user_mode(regs) && fixup_exception(regs)) {
return;
}
parisc_terminate("Bad Address (null pointer deref?)", regs, code, address);
Apart from the error messages, the two blocks of code perform the same
function.
We can avoid two calls to faulthandler_disabled() by a simple revision
to the code in handle_interruption().
Note: I didn't try to fix the formatting of this code block.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/parisc/kernel/traps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 9a898d68f4a0d..346456c43aa0b 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -795,7 +795,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
* unless pagefault_disable() was called before.
*/
- if (fault_space == 0 && !faulthandler_disabled())
+ if (faulthandler_disabled() || fault_space == 0)
{
/* Clean up and return if in exception table. */
if (fixup_exception(regs))
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 132/186] powerpc/6xx: add missing of_node_put
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (130 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 131/186] parisc: Avoid calling faulthandler_disabled() twice Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 133/186] powerpc/powernv: " Greg Kroah-Hartman
` (54 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Julia Lawall, Michael Ellerman, Sasha Levin
From: Julia Lawall <Julia.Lawall@lip6.fr>
[ Upstream commit f6e82647ff71d427d4148964b71f239fba9d7937 ]
for_each_compatible_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
expression e;
local idexpression n;
@@
@@
local idexpression n;
expression e;
@@
for_each_compatible_node(n,...) {
...
(
of_node_put(n);
|
e = n
|
+ of_node_put(n);
? break;
)
...
}
... when != n
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-2-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index bf4a125faec66..db2ea6b6889de 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -220,6 +220,7 @@ void hlwd_pic_probe(void)
irq_set_chained_handler(cascade_virq,
hlwd_pic_irq_cascade);
hlwd_irq_host = host;
+ of_node_put(np);
break;
}
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 133/186] powerpc/powernv: add missing of_node_put
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (131 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 132/186] powerpc/6xx: add missing of_node_put Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 134/186] powerpc/cell: " Greg Kroah-Hartman
` (53 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Julia Lawall, Michael Ellerman, Sasha Levin
From: Julia Lawall <Julia.Lawall@lip6.fr>
[ Upstream commit 7d405a939ca960162eb30c1475759cb2fdf38f8c ]
for_each_compatible_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
local idexpression n;
expression e;
@@
for_each_compatible_node(n,...) {
...
(
of_node_put(n);
|
e = n
|
+ of_node_put(n);
? break;
)
...
}
... when != n
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-4-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/powernv/opal-lpc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c
index 6c7ad1d8b32ed..21f0edcfb84ad 100644
--- a/arch/powerpc/platforms/powernv/opal-lpc.c
+++ b/arch/powerpc/platforms/powernv/opal-lpc.c
@@ -400,6 +400,7 @@ void __init opal_lpc_init(void)
if (!of_get_property(np, "primary", NULL))
continue;
opal_lpc_chip_id = of_get_ibm_chip_id(np);
+ of_node_put(np);
break;
}
if (opal_lpc_chip_id < 0)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 134/186] powerpc/cell: add missing of_node_put
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (132 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 133/186] powerpc/powernv: " Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 135/186] powerpc/btext: " Greg Kroah-Hartman
` (52 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Julia Lawall, Michael Ellerman, Sasha Levin
From: Julia Lawall <Julia.Lawall@lip6.fr>
[ Upstream commit a841fd009e51c8c0a8f07c942e9ab6bb48da8858 ]
for_each_node_by_name performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
expression e,e1;
local idexpression n;
@@
for_each_node_by_name(n, e1) {
... when != of_node_put(n)
when != e = n
(
return n;
|
+ of_node_put(n);
? return ...;
)
...
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-7-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/cell/iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 4b91ad08eefd9..c4f352387aec3 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -1088,6 +1088,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
if (hbase < dbase || (hend > (dbase + dsize))) {
pr_debug("iommu: hash window doesn't fit in"
"real DMA window\n");
+ of_node_put(np);
return -1;
}
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 135/186] powerpc/btext: add missing of_node_put
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (133 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 134/186] powerpc/cell: " Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 136/186] powerpc/watchdog: Fix missed watchdog reset due to memory ordering race Greg Kroah-Hartman
` (51 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Julia Lawall, Michael Ellerman, Sasha Levin
From: Julia Lawall <Julia.Lawall@lip6.fr>
[ Upstream commit a1d2b210ffa52d60acabbf7b6af3ef7e1e69cda0 ]
for_each_node_by_type performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
local idexpression n;
expression e;
@@
for_each_node_by_type(n,...) {
...
(
of_node_put(n);
|
e = n
|
+ of_node_put(n);
? break;
)
...
}
... when != n
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-6-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/btext.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 6537cba1a7580..d1a2fc7186ce7 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -258,8 +258,10 @@ int __init btext_find_display(int allow_nonstdout)
rc = btext_initialize(np);
printk("result: %d\n", rc);
}
- if (rc == 0)
+ if (rc == 0) {
+ of_node_put(np);
break;
+ }
}
return rc;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 136/186] powerpc/watchdog: Fix missed watchdog reset due to memory ordering race
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (134 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 135/186] powerpc/btext: " Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 137/186] i2c: i801: Dont silently correct invalid transfer size Greg Kroah-Hartman
` (50 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nicholas Piggin, Laurent Dufour,
Michael Ellerman, Sasha Levin
From: Nicholas Piggin <npiggin@gmail.com>
[ Upstream commit 5dad4ba68a2483fc80d70b9dc90bbe16e1f27263 ]
It is possible for all CPUs to miss the pending cpumask becoming clear,
and then nobody resetting it, which will cause the lockup detector to
stop working. It will eventually expire, but watchdog_smp_panic will
avoid doing anything if the pending mask is clear and it will never be
reset.
Order the cpumask clear vs the subsequent test to close this race.
Add an extra check for an empty pending mask when the watchdog fires and
finds its bit still clear, to try to catch any other possible races or
bugs here and keep the watchdog working. The extra test in
arch_touch_nmi_watchdog is required to prevent the new warning from
firing off.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Debugged-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211110025056.2084347-2-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/watchdog.c | 41 +++++++++++++++++++++++++++++++++-
1 file changed, 40 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
index ce848ff84eddf..1617767ebc9ae 100644
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@@ -106,6 +106,10 @@ static void set_cpumask_stuck(const struct cpumask *cpumask, u64 tb)
{
cpumask_or(&wd_smp_cpus_stuck, &wd_smp_cpus_stuck, cpumask);
cpumask_andnot(&wd_smp_cpus_pending, &wd_smp_cpus_pending, cpumask);
+ /*
+ * See wd_smp_clear_cpu_pending()
+ */
+ smp_mb();
if (cpumask_empty(&wd_smp_cpus_pending)) {
wd_smp_last_reset_tb = tb;
cpumask_andnot(&wd_smp_cpus_pending,
@@ -177,13 +181,44 @@ static void wd_smp_clear_cpu_pending(int cpu, u64 tb)
wd_smp_lock(&flags);
cpumask_clear_cpu(cpu, &wd_smp_cpus_stuck);
wd_smp_unlock(&flags);
+ } else {
+ /*
+ * The last CPU to clear pending should have reset the
+ * watchdog so we generally should not find it empty
+ * here if our CPU was clear. However it could happen
+ * due to a rare race with another CPU taking the
+ * last CPU out of the mask concurrently.
+ *
+ * We can't add a warning for it. But just in case
+ * there is a problem with the watchdog that is causing
+ * the mask to not be reset, try to kick it along here.
+ */
+ if (unlikely(cpumask_empty(&wd_smp_cpus_pending)))
+ goto none_pending;
}
return;
}
+
cpumask_clear_cpu(cpu, &wd_smp_cpus_pending);
+
+ /*
+ * Order the store to clear pending with the load(s) to check all
+ * words in the pending mask to check they are all empty. This orders
+ * with the same barrier on another CPU. This prevents two CPUs
+ * clearing the last 2 pending bits, but neither seeing the other's
+ * store when checking if the mask is empty, and missing an empty
+ * mask, which ends with a false positive.
+ */
+ smp_mb();
if (cpumask_empty(&wd_smp_cpus_pending)) {
unsigned long flags;
+none_pending:
+ /*
+ * Double check under lock because more than one CPU could see
+ * a clear mask with the lockless check after clearing their
+ * pending bits.
+ */
wd_smp_lock(&flags);
if (cpumask_empty(&wd_smp_cpus_pending)) {
wd_smp_last_reset_tb = tb;
@@ -276,8 +311,12 @@ void arch_touch_nmi_watchdog(void)
{
unsigned long ticks = tb_ticks_per_usec * wd_timer_period_ms * 1000;
int cpu = smp_processor_id();
- u64 tb = get_tb();
+ u64 tb;
+
+ if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
+ return;
+ tb = get_tb();
if (tb - per_cpu(wd_timer_tb, cpu) >= ticks) {
per_cpu(wd_timer_tb, cpu) = tb;
wd_smp_clear_cpu_pending(cpu, tb);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 137/186] i2c: i801: Dont silently correct invalid transfer size
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (135 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 136/186] powerpc/watchdog: Fix missed watchdog reset due to memory ordering race Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 138/186] powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING Greg Kroah-Hartman
` (49 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Heiner Kallweit, Jean Delvare,
Wolfram Sang, Sasha Levin
From: Heiner Kallweit <hkallweit1@gmail.com>
[ Upstream commit effa453168a7eeb8a562ff4edc1dbf9067360a61 ]
If an invalid block size is provided, reject it instead of silently
changing it to a supported value. Especially critical I see the case of
a write transfer with block length 0. In this case we have no guarantee
that the byte we would write is valid. When silently reducing a read to
32 bytes then we don't return an error and the caller may falsely
assume that we returned the full requested data.
If this change should break any (broken) caller, then I think we should
fix the caller.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/i2c/busses/i2c-i801.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 7b1654b0fb6db..c817e3d4b52b8 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -769,6 +769,11 @@ static int i801_block_transaction(struct i801_priv *priv,
int result = 0;
unsigned char hostc;
+ if (read_write == I2C_SMBUS_READ && command == I2C_SMBUS_BLOCK_DATA)
+ data->block[0] = I2C_SMBUS_BLOCK_MAX;
+ else if (data->block[0] < 1 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+ return -EPROTO;
+
if (command == I2C_SMBUS_I2C_BLOCK_DATA) {
if (read_write == I2C_SMBUS_WRITE) {
/* set I2C_EN bit in configuration register */
@@ -782,16 +787,6 @@ static int i801_block_transaction(struct i801_priv *priv,
}
}
- if (read_write == I2C_SMBUS_WRITE
- || command == I2C_SMBUS_I2C_BLOCK_DATA) {
- if (data->block[0] < 1)
- data->block[0] = 1;
- if (data->block[0] > I2C_SMBUS_BLOCK_MAX)
- data->block[0] = I2C_SMBUS_BLOCK_MAX;
- } else {
- data->block[0] = 32; /* max for SMBus block reads */
- }
-
/* Experience has shown that the block buffer can only be used for
SMBus (not I2C) block transactions, even though the datasheet
doesn't mention this limitation. */
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 138/186] powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (136 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 137/186] i2c: i801: Dont silently correct invalid transfer size Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 139/186] i2c: mpc: Correct I2C reset procedure Greg Kroah-Hartman
` (48 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Michael Ellerman, Sasha Levin
From: Michael Ellerman <mpe@ellerman.id.au>
[ Upstream commit a4ac0d249a5db80e79d573db9e4ad29354b643a8 ]
setup_profiling_timer() is only needed when CONFIG_PROFILING is enabled.
Fixes the following W=1 warning when CONFIG_PROFILING=n:
linux/arch/powerpc/kernel/smp.c:1638:5: error: no previous prototype for ‘setup_profiling_timer’
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211124093254.1054750-5-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/smp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 7c7aa7c98ba31..cf25b95ceee13 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1009,10 +1009,12 @@ void start_secondary(void *unused)
BUG();
}
+#ifdef CONFIG_PROFILING
int setup_profiling_timer(unsigned int multiplier)
{
return 0;
}
+#endif
#ifdef CONFIG_SCHED_SMT
/* cpumask of CPUs with asymetric SMT dependancy */
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 139/186] i2c: mpc: Correct I2C reset procedure
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (137 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 138/186] powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 140/186] w1: Misuse of get_user()/put_user() reported by sparse Greg Kroah-Hartman
` (47 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joakim Tjernlund, Scott Wood,
Wolfram Sang, Sasha Levin
From: Joakim Tjernlund <joakim.tjernlund@infinera.com>
[ Upstream commit ebe82cf92cd4825c3029434cabfcd2f1780e64be ]
Current I2C reset procedure is broken in two ways:
1) It only generate 1 START instead of 9 STARTs and STOP.
2) It leaves the bus Busy so every I2C xfer after the first
fixup calls the reset routine again, for every xfer there after.
This fixes both errors.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/i2c/busses/i2c-mpc.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 7db5554d2b4e7..194bf06ecb25e 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -107,23 +107,30 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
/* Sometimes 9th clock pulse isn't generated, and slave doesn't release
* the bus, because it wants to send ACK.
* Following sequence of enabling/disabling and sending start/stop generates
- * the 9 pulses, so it's all OK.
+ * the 9 pulses, each with a START then ending with STOP, so it's all OK.
*/
static void mpc_i2c_fixup(struct mpc_i2c *i2c)
{
int k;
- u32 delay_val = 1000000 / i2c->real_clk + 1;
-
- if (delay_val < 2)
- delay_val = 2;
+ unsigned long flags;
for (k = 9; k; k--) {
writeccr(i2c, 0);
- writeccr(i2c, CCR_MSTA | CCR_MTX | CCR_MEN);
+ writeb(0, i2c->base + MPC_I2C_SR); /* clear any status bits */
+ writeccr(i2c, CCR_MEN | CCR_MSTA); /* START */
+ readb(i2c->base + MPC_I2C_DR); /* init xfer */
+ udelay(15); /* let it hit the bus */
+ local_irq_save(flags); /* should not be delayed further */
+ writeccr(i2c, CCR_MEN | CCR_MSTA | CCR_RSTA); /* delay SDA */
readb(i2c->base + MPC_I2C_DR);
- writeccr(i2c, CCR_MEN);
- udelay(delay_val << 1);
+ if (k != 1)
+ udelay(5);
+ local_irq_restore(flags);
}
+ writeccr(i2c, CCR_MEN); /* Initiate STOP */
+ readb(i2c->base + MPC_I2C_DR);
+ udelay(15); /* Let STOP propagate */
+ writeccr(i2c, 0);
}
static int i2c_wait(struct mpc_i2c *i2c, unsigned timeout, int writing)
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 140/186] w1: Misuse of get_user()/put_user() reported by sparse
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (138 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 139/186] i2c: mpc: Correct I2C reset procedure Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 141/186] ALSA: seq: Set upper limit of processed events Greg Kroah-Hartman
` (46 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Christophe Leroy,
Sasha Levin
From: Christophe Leroy <christophe.leroy@csgroup.eu>
[ Upstream commit 33dc3e3e99e626ce51f462d883b05856c6c30b1d ]
sparse warnings: (new ones prefixed by >>)
>> drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char [noderef] __user *_pu_addr @@ got char *buf @@
drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: expected char [noderef] __user *_pu_addr
drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: got char *buf
>> drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char const [noderef] __user *_gu_addr @@ got char const *buf @@
drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: expected char const [noderef] __user *_gu_addr
drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: got char const *buf
The buffer buf is a failsafe buffer in kernel space, it's not user
memory hence doesn't deserve the use of get_user() or put_user().
Access 'buf' content directly.
Link: https://lore.kernel.org/lkml/202111190526.K5vb7NWC-lkp@intel.com/T/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/d14ed8d71ad4372e6839ae427f91441d3ba0e94d.1637946316.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/w1/slaves/w1_ds28e04.c | 26 ++++++--------------------
1 file changed, 6 insertions(+), 20 deletions(-)
diff --git a/drivers/w1/slaves/w1_ds28e04.c b/drivers/w1/slaves/w1_ds28e04.c
index ec234b846eb3c..e5eb19a34ee2a 100644
--- a/drivers/w1/slaves/w1_ds28e04.c
+++ b/drivers/w1/slaves/w1_ds28e04.c
@@ -34,7 +34,7 @@ static int w1_strong_pullup = 1;
module_param_named(strong_pullup, w1_strong_pullup, int, 0);
/* enable/disable CRC checking on DS28E04-100 memory accesses */
-static char w1_enable_crccheck = 1;
+static bool w1_enable_crccheck = true;
#define W1_EEPROM_SIZE 512
#define W1_PAGE_COUNT 16
@@ -341,32 +341,18 @@ static BIN_ATTR_RW(pio, 1);
static ssize_t crccheck_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- if (put_user(w1_enable_crccheck + 0x30, buf))
- return -EFAULT;
-
- return sizeof(w1_enable_crccheck);
+ return sysfs_emit(buf, "%d\n", w1_enable_crccheck);
}
static ssize_t crccheck_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- char val;
-
- if (count != 1 || !buf)
- return -EINVAL;
+ int err = kstrtobool(buf, &w1_enable_crccheck);
- if (get_user(val, buf))
- return -EFAULT;
+ if (err)
+ return err;
- /* convert to decimal */
- val = val - 0x30;
- if (val != 0 && val != 1)
- return -EINVAL;
-
- /* set the new value */
- w1_enable_crccheck = val;
-
- return sizeof(w1_enable_crccheck);
+ return count;
}
static DEVICE_ATTR_RW(crccheck);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 141/186] ALSA: seq: Set upper limit of processed events
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (139 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 140/186] w1: Misuse of get_user()/put_user() reported by sparse Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 142/186] MIPS: OCTEON: add put_device() after of_find_device_by_node() Greg Kroah-Hartman
` (45 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zqiang, syzbot+bb950e68b400ab4f65f8,
Takashi Iwai, Sasha Levin
From: Takashi Iwai <tiwai@suse.de>
[ Upstream commit 6fadb494a638d8b8a55864ecc6ac58194f03f327 ]
Currently ALSA sequencer core tries to process the queued events as
much as possible when they become dispatchable. If applications try
to queue too massive events to be processed at the very same timing,
the sequencer core would still try to process such all events, either
in the interrupt context or via some notifier; in either away, it
might be a cause of RCU stall or such problems.
As a potential workaround for those problems, this patch adds the
upper limit of the amount of events to be processed. The remaining
events are processed in the next batch, so they won't be lost.
For the time being, it's limited up to 1000 events per queue, which
should be high enough for any normal usages.
Reported-by: Zqiang <qiang.zhang1211@gmail.com>
Reported-by: syzbot+bb950e68b400ab4f65f8@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211102033222.3849-1-qiang.zhang1211@gmail.com
Link: https://lore.kernel.org/r/20211207165146.2888-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/core/seq/seq_queue.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index ea1aa07962761..b923059a22276 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -257,12 +257,15 @@ struct snd_seq_queue *snd_seq_queue_find_name(char *name)
/* -------------------------------------------------------- */
+#define MAX_CELL_PROCESSES_IN_QUEUE 1000
+
void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
{
unsigned long flags;
struct snd_seq_event_cell *cell;
snd_seq_tick_time_t cur_tick;
snd_seq_real_time_t cur_time;
+ int processed = 0;
if (q == NULL)
return;
@@ -285,6 +288,8 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
if (!cell)
break;
snd_seq_dispatch_event(cell, atomic, hop);
+ if (++processed >= MAX_CELL_PROCESSES_IN_QUEUE)
+ goto out; /* the rest processed at the next batch */
}
/* Process time queue... */
@@ -294,14 +299,19 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
if (!cell)
break;
snd_seq_dispatch_event(cell, atomic, hop);
+ if (++processed >= MAX_CELL_PROCESSES_IN_QUEUE)
+ goto out; /* the rest processed at the next batch */
}
+ out:
/* free lock */
spin_lock_irqsave(&q->check_lock, flags);
if (q->check_again) {
q->check_again = 0;
- spin_unlock_irqrestore(&q->check_lock, flags);
- goto __again;
+ if (processed < MAX_CELL_PROCESSES_IN_QUEUE) {
+ spin_unlock_irqrestore(&q->check_lock, flags);
+ goto __again;
+ }
}
q->check_blocked = 0;
spin_unlock_irqrestore(&q->check_lock, flags);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 142/186] MIPS: OCTEON: add put_device() after of_find_device_by_node()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (140 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 141/186] ALSA: seq: Set upper limit of processed events Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 143/186] i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters Greg Kroah-Hartman
` (44 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zeal Robot, Ye Guojin,
Thomas Bogendoerfer, Sasha Levin
From: Ye Guojin <ye.guojin@zte.com.cn>
[ Upstream commit 858779df1c0787d3fec827fb705708df9ebdb15b ]
This was found by coccicheck:
./arch/mips/cavium-octeon/octeon-platform.c, 332, 1-7, ERROR missing
put_device; call of_find_device_by_node on line 324, but without a
corresponding object release within this function.
./arch/mips/cavium-octeon/octeon-platform.c, 395, 1-7, ERROR missing
put_device; call of_find_device_by_node on line 387, but without a
corresponding object release within this function.
./arch/mips/cavium-octeon/octeon-usb.c, 512, 3-9, ERROR missing
put_device; call of_find_device_by_node on line 515, but without a
corresponding object release within this function.
./arch/mips/cavium-octeon/octeon-usb.c, 543, 1-7, ERROR missing
put_device; call of_find_device_by_node on line 515, but without a
corresponding object release within this function.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/cavium-octeon/octeon-platform.c | 2 ++
arch/mips/cavium-octeon/octeon-usb.c | 1 +
2 files changed, 3 insertions(+)
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index e1e24118c169e..ed42fc27033c4 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -328,6 +328,7 @@ static int __init octeon_ehci_device_init(void)
pd->dev.platform_data = &octeon_ehci_pdata;
octeon_ehci_hw_start(&pd->dev);
+ put_device(&pd->dev);
return ret;
}
@@ -391,6 +392,7 @@ static int __init octeon_ohci_device_init(void)
pd->dev.platform_data = &octeon_ohci_pdata;
octeon_ohci_hw_start(&pd->dev);
+ put_device(&pd->dev);
return ret;
}
diff --git a/arch/mips/cavium-octeon/octeon-usb.c b/arch/mips/cavium-octeon/octeon-usb.c
index 75189ff2f3c78..3465452e28195 100644
--- a/arch/mips/cavium-octeon/octeon-usb.c
+++ b/arch/mips/cavium-octeon/octeon-usb.c
@@ -543,6 +543,7 @@ static int __init dwc3_octeon_device_init(void)
devm_iounmap(&pdev->dev, base);
devm_release_mem_region(&pdev->dev, res->start,
resource_size(res));
+ put_device(&pdev->dev);
}
} while (node != NULL);
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 143/186] i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (141 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 142/186] MIPS: OCTEON: add put_device() after of_find_device_by_node() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 144/186] MIPS: Octeon: Fix build errors using clang Greg Kroah-Hartman
` (43 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wolfram Sang, Lakshmi Sowjanya D,
Andy Shevchenko, Jarkko Nikula, Sasha Levin
From: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
[ Upstream commit d52097010078c1844348dc0e467305e5f90fd317 ]
The data type of hcnt and lcnt in the struct dw_i2c_dev is of type u16.
It's better to have same data type in struct dw_scl_sda_cfg as well.
Reported-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/i2c/busses/i2c-designware-pcidrv.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 86e1bd0b82e91..347d82dff67c0 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -50,10 +50,10 @@ enum dw_pci_ctl_id_t {
};
struct dw_scl_sda_cfg {
- u32 ss_hcnt;
- u32 fs_hcnt;
- u32 ss_lcnt;
- u32 fs_lcnt;
+ u16 ss_hcnt;
+ u16 fs_hcnt;
+ u16 ss_lcnt;
+ u16 fs_lcnt;
u32 sda_hold;
};
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 144/186] MIPS: Octeon: Fix build errors using clang
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (142 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 143/186] i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 145/186] scsi: sr: Dont use GFP_DMA Greg Kroah-Hartman
` (42 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tianjia Zhang, Nathan Chancellor,
Philippe Mathieu-Daudé,
Thomas Bogendoerfer, Sasha Levin
From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
[ Upstream commit 95339b70677dc6f9a2d669c4716058e71b8dc1c7 ]
A large number of the following errors is reported when compiling
with clang:
cvmx-bootinfo.h:326:3: error: adding 'int' to a string does not append to the string [-Werror,-Wstring-plus-int]
ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NULL)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cvmx-bootinfo.h:321:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
case x: return(#x + 16); /* Skip CVMX_BOARD_TYPE_ */
~~~^~~~
cvmx-bootinfo.h:326:3: note: use array indexing to silence this warning
cvmx-bootinfo.h:321:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
case x: return(#x + 16); /* Skip CVMX_BOARD_TYPE_ */
^
Follow the prompts to use the address operator '&' to fix this error.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/include/asm/octeon/cvmx-bootinfo.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/include/asm/octeon/cvmx-bootinfo.h b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
index 62787765575ef..ce6e5fddce0bf 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootinfo.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
@@ -315,7 +315,7 @@ enum cvmx_chip_types_enum {
/* Functions to return string based on type */
#define ENUM_BRD_TYPE_CASE(x) \
- case x: return(#x + 16); /* Skip CVMX_BOARD_TYPE_ */
+ case x: return (&#x[16]); /* Skip CVMX_BOARD_TYPE_ */
static inline const char *cvmx_board_type_to_string(enum
cvmx_board_types_enum type)
{
@@ -404,7 +404,7 @@ static inline const char *cvmx_board_type_to_string(enum
}
#define ENUM_CHIP_TYPE_CASE(x) \
- case x: return(#x + 15); /* Skip CVMX_CHIP_TYPE */
+ case x: return (&#x[15]); /* Skip CVMX_CHIP_TYPE */
static inline const char *cvmx_chip_type_to_string(enum
cvmx_chip_types_enum type)
{
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 145/186] scsi: sr: Dont use GFP_DMA
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (143 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 144/186] MIPS: Octeon: Fix build errors using clang Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 146/186] ASoC: mediatek: mt8173: fix device_node leak Greg Kroah-Hartman
` (41 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Baoquan He, Christoph Hellwig,
Martin K. Petersen, Sasha Levin
From: Christoph Hellwig <hch@lst.de>
[ Upstream commit d94d94969a4ba07a43d62429c60372320519c391 ]
The allocated buffers are used as a command payload, for which the block
layer and/or DMA API do the proper bounce buffering if needed.
Link: https://lore.kernel.org/r/20211222090842.920724-1-hch@lst.de
Reported-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/sr.c | 2 +-
drivers/scsi/sr_vendor.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index be2daf5536ff7..180087d1c6cdb 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -885,7 +885,7 @@ static void get_capabilities(struct scsi_cd *cd)
/* allocate transfer buffer */
- buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
+ buffer = kmalloc(512, GFP_KERNEL);
if (!buffer) {
sr_printk(KERN_ERR, cd, "out of memory.\n");
return;
diff --git a/drivers/scsi/sr_vendor.c b/drivers/scsi/sr_vendor.c
index e3b0ce25162ba..2887be4316be9 100644
--- a/drivers/scsi/sr_vendor.c
+++ b/drivers/scsi/sr_vendor.c
@@ -119,7 +119,7 @@ int sr_set_blocklength(Scsi_CD *cd, int blocklength)
density = (blocklength > 2048) ? 0x81 : 0x83;
#endif
- buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
+ buffer = kmalloc(512, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@@ -167,7 +167,7 @@ int sr_cd_check(struct cdrom_device_info *cdi)
if (cd->cdi.mask & CDC_MULTI_SESSION)
return 0;
- buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
+ buffer = kmalloc(512, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 146/186] ASoC: mediatek: mt8173: fix device_node leak
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (144 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 145/186] scsi: sr: Dont use GFP_DMA Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 147/186] power: bq25890: Enable continuous conversion for ADC at charging Greg Kroah-Hartman
` (40 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tzung-Bi Shih, Mark Brown, Sasha Levin
From: Tzung-Bi Shih <tzungbi@google.com>
[ Upstream commit 493433785df0075afc0c106ab65f10a605d0b35d ]
Fixes the device_node leak.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20211224064719.2031210-2-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/mediatek/mt8173/mt8173-max98090.c | 3 +++
sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c | 2 ++
sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 2 ++
sound/soc/mediatek/mt8173/mt8173-rt5650.c | 2 ++
4 files changed, 9 insertions(+)
diff --git a/sound/soc/mediatek/mt8173/mt8173-max98090.c b/sound/soc/mediatek/mt8173/mt8173-max98090.c
index e0c2b23ec7118..0adb7ded61e9c 100644
--- a/sound/soc/mediatek/mt8173/mt8173-max98090.c
+++ b/sound/soc/mediatek/mt8173/mt8173-max98090.c
@@ -177,6 +177,9 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev)
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
+
+ of_node_put(codec_node);
+ of_node_put(platform_node);
return ret;
}
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
index 99c15219dbc81..aa52e2f81760a 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
@@ -227,6 +227,8 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev)
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
+
+ of_node_put(platform_node);
return ret;
}
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
index 42de84ca8c844..61b0d8f8678e9 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
@@ -284,6 +284,8 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
+
+ of_node_put(platform_node);
return ret;
}
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
index e69c141d8ed4c..3492c02f72c1a 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
@@ -316,6 +316,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
+
+ of_node_put(platform_node);
return ret;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 147/186] power: bq25890: Enable continuous conversion for ADC at charging
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (145 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 146/186] ASoC: mediatek: mt8173: fix device_node leak Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 148/186] ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers Greg Kroah-Hartman
` (39 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yauhen Kharuzhy, Hans de Goede,
Sebastian Reichel, Sasha Levin
From: Yauhen Kharuzhy <jekhor@gmail.com>
[ Upstream commit 80211be1b9dec04cc2805d3d81e2091ecac289a1 ]
Instead of one shot run of ADC at beginning of charging, run continuous
conversion to ensure that all charging-related values are monitored
properly (input voltage, input current, themperature etc.).
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/power/supply/bq25890_charger.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c
index 8e2c41ded171c..e90253b3f6561 100644
--- a/drivers/power/supply/bq25890_charger.c
+++ b/drivers/power/supply/bq25890_charger.c
@@ -521,12 +521,12 @@ static void bq25890_handle_state_change(struct bq25890_device *bq,
if (!new_state->online) { /* power removed */
/* disable ADC */
- ret = bq25890_field_write(bq, F_CONV_START, 0);
+ ret = bq25890_field_write(bq, F_CONV_RATE, 0);
if (ret < 0)
goto error;
} else if (!old_state.online) { /* power inserted */
/* enable ADC, to have control of charge current/voltage */
- ret = bq25890_field_write(bq, F_CONV_START, 1);
+ ret = bq25890_field_write(bq, F_CONV_RATE, 1);
if (ret < 0)
goto error;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 190+ messages in thread* [PATCH 4.14 148/186] ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (146 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 147/186] power: bq25890: Enable continuous conversion for ADC at charging Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 149/186] serial: Fix incorrect rs485 polarity on uart open Greg Kroah-Hartman
` (38 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Petr Cvachoucek, Richard Weinberger
From: Petr Cvachoucek <cvachoucek@gmail.com>
commit 3fea4d9d160186617ff40490ae01f4f4f36b28ff upstream.
it seems freeing the write buffers in the error path of the
ubifs_remount_rw() is wrong. It leads later to a kernel oops like this:
[10016.431274] UBIFS (ubi0:0): start fixing up free space
[10090.810042] UBIFS (ubi0:0): free space fixup complete
[10090.814623] UBIFS error (ubi0:0 pid 512): ubifs_remount_fs: cannot
spawn "ubifs_bgt0_0", error -4
[10101.915108] UBIFS (ubi0:0): background thread "ubifs_bgt0_0" started,
PID 517
[10105.275498] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000030
[10105.284352] Mem abort info:
[10105.287160] ESR = 0x96000006
[10105.290252] EC = 0x25: DABT (current EL), IL = 32 bits
[10105.295592] SET = 0, FnV = 0
[10105.298652] EA = 0, S1PTW = 0
[10105.301848] Data abort info:
[10105.304723] ISV = 0, ISS = 0x00000006
[10105.308573] CM = 0, WnR = 0
[10105.311564] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000f03d1000
[10105.318034] [0000000000000030] pgd=00000000f6cee003,
pud=00000000f4884003, pmd=0000000000000000
[10105.326783] Internal error: Oops: 96000006 [#1] PREEMPT SMP
[10105.332355] Modules linked in: ath10k_pci ath10k_core ath mac80211
libarc4 cfg80211 nvme nvme_core cryptodev(O)
[10105.342468] CPU: 3 PID: 518 Comm: touch Tainted: G O
5.4.3 #1
[10105.349517] Hardware name: HYPEX CPU (DT)
[10105.353525] pstate: 40000005 (nZcv daif -PAN -UAO)
[10105.358324] pc : atomic64_try_cmpxchg_acquire.constprop.22+0x8/0x34
[10105.364596] lr : mutex_lock+0x1c/0x34
[10105.368253] sp : ffff000075633aa0
[10105.371563] x29: ffff000075633aa0 x28: 0000000000000001
[10105.376874] x27: ffff000076fa80c8 x26: 0000000000000004
[10105.382185] x25: 0000000000000030 x24: 0000000000000000
[10105.387495] x23: 0000000000000000 x22: 0000000000000038
[10105.392807] x21: 000000000000000c x20: ffff000076fa80c8
[10105.398119] x19: ffff000076fa8000 x18: 0000000000000000
[10105.403429] x17: 0000000000000000 x16: 0000000000000000
[10105.408741] x15: 0000000000000000 x14: fefefefefefefeff
[10105.414052] x13: 0000000000000000 x12: 0000000000000fe0
[10105.419364] x11: 0000000000000fe0 x10: ffff000076709020
[10105.424675] x9 : 0000000000000000 x8 : 00000000000000a0
[10105.429986] x7 : ffff000076fa80f4 x6 : 0000000000000030
[10105.435297] x5 : 0000000000000000 x4 : 0000000000000000
[10105.440609] x3 : 0000000000000000 x2 : ffff00006f276040
[10105.445920] x1 : ffff000075633ab8 x0 : 0000000000000030
[10105.451232] Call trace:
[10105.453676] atomic64_try_cmpxchg_acquire.constprop.22+0x8/0x34
[10105.459600] ubifs_garbage_collect+0xb4/0x334
[10105.463956] ubifs_budget_space+0x398/0x458
[10105.468139] ubifs_create+0x50/0x180
[10105.471712] path_openat+0x6a0/0x9b0
[10105.475284] do_filp_open+0x34/0x7c
[10105.478771] do_sys_open+0x78/0xe4
[10105.482170] __arm64_sys_openat+0x1c/0x24
[10105.486180] el0_svc_handler+0x84/0xc8
[10105.489928] el0_svc+0x8/0xc
[10105.492808] Code: 52800013 17fffffb d2800003 f9800011 (c85ffc05)
[10105.498903] ---[ end trace 46b721d93267a586 ]---
To reproduce the problem:
1. Filesystem initially mounted read-only, free space fixup flag set.
2. mount -o remount,rw <mountpoint>
3. it takes some time (free space fixup running)
... try to terminate running mount by CTRL-C
... does not respond, only after free space fixup is complete
... then "ubifs_remount_fs: cannot spawn "ubifs_bgt0_0", error -4"
4. mount -o remount,rw <mountpoint>
... now finished instantly (fixup already done).
5. Create file or just unmount the filesystem and we get the oops.
Cc: <stable@vger.kernel.org>
Fixes: b50b9f408502 ("UBIFS: do not free write-buffers when in R/O mode")
Signed-off-by: Petr Cvachoucek <cvachoucek@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ubifs/super.c | 1 -
1 file changed, 1 deletion(-)
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1706,7 +1706,6 @@ out:
kthread_stop(c->bgt);
c->bgt = NULL;
}
- free_wbufs(c);
kfree(c->write_reserve_buf);
c->write_reserve_buf = NULL;
vfree(c->ileb_buf);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 149/186] serial: Fix incorrect rs485 polarity on uart open
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (147 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 148/186] ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 150/186] cputime, cpuacct: Include guest time in user time in cpuacct.stat Greg Kroah-Hartman
` (37 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rafael Gago Castano, Jan Kiszka,
Su Bao Cheng, Lukas Wunner
From: Lukas Wunner <lukas@wunner.de>
commit d3b3404df318504ec084213ab1065b73f49b0f1d upstream.
Commit a6845e1e1b78 ("serial: core: Consider rs485 settings to drive
RTS") sought to deassert RTS when opening an rs485-enabled uart port.
That way, the transceiver does not occupy the bus until it transmits
data.
Unfortunately, the commit mixed up the logic and *asserted* RTS instead
of *deasserting* it:
The commit amended uart_port_dtr_rts(), which raises DTR and RTS when
opening an rs232 port. "Raising" actually means lowering the signal
that's coming out of the uart, because an rs232 transceiver not only
changes a signal's voltage level, it also *inverts* the signal. See
the simplified schematic in the MAX232 datasheet for an example:
https://www.ti.com/lit/ds/symlink/max232.pdf
So, to raise RTS on an rs232 port, TIOCM_RTS is *set* in port->mctrl
and that results in the signal being driven low.
In contrast to rs232, the signal level for rs485 Transmit Enable is the
identity, not the inversion: If the transceiver expects a "high" RTS
signal for Transmit Enable, the signal coming out of the uart must also
be high, so TIOCM_RTS must be *cleared* in port->mctrl.
The commit did the exact opposite, but it's easy to see why given the
confusing semantics of rs232 and rs485. Fix it.
Fixes: a6845e1e1b78 ("serial: core: Consider rs485 settings to drive RTS")
Cc: stable@vger.kernel.org # v4.14+
Cc: Rafael Gago Castano <rgc@hms.se>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Su Bao Cheng <baocheng.su@siemens.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/9395767847833f2f3193c49cde38501eeb3b5669.1639821059.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/serial_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -172,7 +172,7 @@ static void uart_port_dtr_rts(struct uar
int RTS_after_send = !!(uport->rs485.flags & SER_RS485_RTS_AFTER_SEND);
if (raise) {
- if (rs485_on && !RTS_after_send) {
+ if (rs485_on && RTS_after_send) {
uart_set_mctrl(uport, TIOCM_DTR);
uart_clear_mctrl(uport, TIOCM_RTS);
} else {
@@ -181,7 +181,7 @@ static void uart_port_dtr_rts(struct uar
} else {
unsigned int clear = TIOCM_DTR;
- clear |= (!rs485_on || !RTS_after_send) ? TIOCM_RTS : 0;
+ clear |= (!rs485_on || RTS_after_send) ? TIOCM_RTS : 0;
uart_clear_mctrl(uport, clear);
}
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 150/186] cputime, cpuacct: Include guest time in user time in cpuacct.stat
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (148 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 149/186] serial: Fix incorrect rs485 polarity on uart open Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 151/186] iwlwifi: mvm: Increase the scan timeout guard to 30 seconds Greg Kroah-Hartman
` (36 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andrey Ryabinin,
Peter Zijlstra (Intel),
Daniel Jordan, Tejun Heo
From: Andrey Ryabinin <arbn@yandex-team.com>
commit 9731698ecb9c851f353ce2496292ff9fcea39dff upstream.
cpuacct.stat in no-root cgroups shows user time without guest time
included int it. This doesn't match with user time shown in root
cpuacct.stat and /proc/<pid>/stat. This also affects cgroup2's cpu.stat
in the same way.
Make account_guest_time() to add user time to cgroup's cpustat to
fix this.
Fixes: ef12fefabf94 ("cpuacct: add per-cgroup utime/stime statistics")
Signed-off-by: Andrey Ryabinin <arbn@yandex-team.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211115164607.23784-1-arbn@yandex-team.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/sched/cputime.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -150,10 +150,10 @@ void account_guest_time(struct task_stru
/* Add guest time to cpustat. */
if (task_nice(p) > 0) {
- cpustat[CPUTIME_NICE] += cputime;
+ task_group_account_field(p, CPUTIME_NICE, cputime);
cpustat[CPUTIME_GUEST_NICE] += cputime;
} else {
- cpustat[CPUTIME_USER] += cputime;
+ task_group_account_field(p, CPUTIME_USER, cputime);
cpustat[CPUTIME_GUEST] += cputime;
}
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 151/186] iwlwifi: mvm: Increase the scan timeout guard to 30 seconds
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (149 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 150/186] cputime, cpuacct: Include guest time in user time in cpuacct.stat Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 152/186] drm/etnaviv: limit submit sizes Greg Kroah-Hartman
` (35 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Ilan Peer, Luca Coelho
From: Ilan Peer <ilan.peer@intel.com>
commit ced50f1133af12f7521bb777fcf4046ca908fb77 upstream.
With the introduction of 6GHz channels the scan guard timeout should
be adjusted to account for the following extreme case:
- All 6GHz channels are scanned passively: 58 channels.
- The scan is fragmented with the following parameters: 3 fragments,
95 TUs suspend time, 44 TUs maximal out of channel time.
The above would result with scan time of more than 24 seconds. Thus,
set the timeout to 30 seconds.
Cc: stable@vger.kernel.org
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211210090244.3c851b93aef5.I346fa2e1d79220a6770496e773c6f87a2ad9e6c4@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -1364,7 +1364,7 @@ static int iwl_mvm_check_running_scans(s
return -EIO;
}
-#define SCAN_TIMEOUT 20000
+#define SCAN_TIMEOUT 30000
void iwl_mvm_scan_timeout_wk(struct work_struct *work)
{
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 152/186] drm/etnaviv: limit submit sizes
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (150 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 151/186] iwlwifi: mvm: Increase the scan timeout guard to 30 seconds Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 153/186] ext4: make sure quota gets properly shutdown on error Greg Kroah-Hartman
` (34 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Lucas Stach,
Christian Gmeiner
From: Lucas Stach <l.stach@pengutronix.de>
commit 6dfa2fab8ddd46faa771a102672176bee7a065de upstream.
Currently we allow rediculous amounts of kernel memory being allocated
via the etnaviv GEM_SUBMIT ioctl, which is a pretty easy DoS vector. Put
some reasonable limits in to fix this.
The commandstream size is limited to 64KB, which was already a soft limit
on older kernels after which the kernel only took submits on a best effort
base, so there is no userspace that tries to submit commandstreams larger
than this. Even if the whole commandstream is a single incrementing address
load, the size limit also limits the number of potential relocs and
referenced buffers to slightly under 64K, so use the same limit for those
arguments. The performance monitoring infrastructure currently supports
less than 50 performance counter signals, so limiting them to 128 on a
single submit seems like a reasonably future-proof number for now. This
number can be bumped if needed without breaking the interface.
Cc: stable@vger.kernel.org
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -341,6 +341,12 @@ int etnaviv_ioctl_gem_submit(struct drm_
return -EINVAL;
}
+ if (args->stream_size > SZ_64K || args->nr_relocs > SZ_64K ||
+ args->nr_bos > SZ_64K || args->nr_pmrs > 128) {
+ DRM_ERROR("submit arguments out of size limits\n");
+ return -EINVAL;
+ }
+
/*
* Copy the command submission and bo array to kernel space in
* one go, and do this outside of any locks.
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 153/186] ext4: make sure quota gets properly shutdown on error
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (151 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 152/186] drm/etnaviv: limit submit sizes Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 154/186] ext4: set csum seed in tmp inode while migrating to extents Greg Kroah-Hartman
` (33 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jan Kara, stable, Theodore Tso
From: Jan Kara <jack@suse.cz>
commit 15fc69bbbbbc8c72e5f6cc4e1be0f51283c5448e upstream.
When we hit an error when enabling quotas and setting inode flags, we do
not properly shutdown quota subsystem despite returning error from
Q_QUOTAON quotactl. This can lead to some odd situations like kernel
using quota file while it is still writeable for userspace. Make sure we
properly cleanup the quota subsystem in case of error.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20211007155336.12493-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/super.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5678,10 +5678,7 @@ static int ext4_quota_on(struct super_bl
lockdep_set_quota_inode(path->dentry->d_inode, I_DATA_SEM_QUOTA);
err = dquot_quota_on(sb, type, format_id, path);
- if (err) {
- lockdep_set_quota_inode(path->dentry->d_inode,
- I_DATA_SEM_NORMAL);
- } else {
+ if (!err) {
struct inode *inode = d_inode(path->dentry);
handle_t *handle;
@@ -5701,7 +5698,12 @@ static int ext4_quota_on(struct super_bl
ext4_journal_stop(handle);
unlock_inode:
inode_unlock(inode);
+ if (err)
+ dquot_quota_off(sb, type);
}
+ if (err)
+ lockdep_set_quota_inode(path->dentry->d_inode,
+ I_DATA_SEM_NORMAL);
return err;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 154/186] ext4: set csum seed in tmp inode while migrating to extents
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (152 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 153/186] ext4: make sure quota gets properly shutdown on error Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 155/186] ext4: Fix BUG_ON in ext4_bread when write quota data Greg Kroah-Hartman
` (32 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jeroen van Wolffelaar,
Luís Henriques, Theodore Tso, stable
From: Luís Henriques <lhenriques@suse.de>
commit e81c9302a6c3c008f5c30beb73b38adb0170ff2d upstream.
When migrating to extents, the temporary inode will have it's own checksum
seed. This means that, when swapping the inodes data, the inode checksums
will be incorrect.
This can be fixed by recalculating the extents checksums again. Or simply
by copying the seed into the temporary inode.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213357
Reported-by: Jeroen van Wolffelaar <jeroen@wolffelaar.nl>
Signed-off-by: Luís Henriques <lhenriques@suse.de>
Link: https://lore.kernel.org/r/20211214175058.19511-1-lhenriques@suse.de
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/migrate.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -484,6 +484,17 @@ int ext4_ext_migrate(struct inode *inode
ext4_journal_stop(handle);
goto out_unlock;
}
+ /*
+ * Use the correct seed for checksum (i.e. the seed from 'inode'). This
+ * is so that the metadata blocks will have the correct checksum after
+ * the migration.
+ *
+ * Note however that, if a crash occurs during the migration process,
+ * the recovery process is broken because the tmp_inode checksums will
+ * be wrong and the orphans cleanup will fail.
+ */
+ ei = EXT4_I(inode);
+ EXT4_I(tmp_inode)->i_csum_seed = ei->i_csum_seed;
i_size_write(tmp_inode, i_size_read(inode));
/*
* Set the i_nlink to zero so it will be deleted later
@@ -527,7 +538,6 @@ int ext4_ext_migrate(struct inode *inode
goto out_tmp_inode;
}
- ei = EXT4_I(inode);
i_data = ei->i_data;
memset(&lb, 0, sizeof(lb));
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 155/186] ext4: Fix BUG_ON in ext4_bread when write quota data
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (153 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 154/186] ext4: set csum seed in tmp inode while migrating to extents Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 156/186] ext4: dont use the orphan list when migrating an inode Greg Kroah-Hartman
` (31 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ye Bin, Jan Kara, Theodore Tso, stable
From: Ye Bin <yebin10@huawei.com>
commit 380a0091cab482489e9b19e07f2a166ad2b76d5c upstream.
We got issue as follows when run syzkaller:
[ 167.936972] EXT4-fs error (device loop0): __ext4_remount:6314: comm rep: Abort forced by user
[ 167.938306] EXT4-fs (loop0): Remounting filesystem read-only
[ 167.981637] Assertion failure in ext4_getblk() at fs/ext4/inode.c:847: '(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_FC_REPLAY) || handle != NULL || create == 0'
[ 167.983601] ------------[ cut here ]------------
[ 167.984245] kernel BUG at fs/ext4/inode.c:847!
[ 167.984882] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
[ 167.985624] CPU: 7 PID: 2290 Comm: rep Tainted: G B 5.16.0-rc5-next-20211217+ #123
[ 167.986823] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014
[ 167.988590] RIP: 0010:ext4_getblk+0x17e/0x504
[ 167.989189] Code: c6 01 74 28 49 c7 c0 a0 a3 5c 9b b9 4f 03 00 00 48 c7 c2 80 9c 5c 9b 48 c7 c6 40 b6 5c 9b 48 c7 c7 20 a4 5c 9b e8 77 e3 fd ff <0f> 0b 8b 04 244
[ 167.991679] RSP: 0018:ffff8881736f7398 EFLAGS: 00010282
[ 167.992385] RAX: 0000000000000094 RBX: 1ffff1102e6dee75 RCX: 0000000000000000
[ 167.993337] RDX: 0000000000000001 RSI: ffffffff9b6e29e0 RDI: ffffed102e6dee66
[ 167.994292] RBP: ffff88816a076210 R08: 0000000000000094 R09: ffffed107363fa09
[ 167.995252] R10: ffff88839b1fd047 R11: ffffed107363fa08 R12: ffff88816a0761e8
[ 167.996205] R13: 0000000000000000 R14: 0000000000000021 R15: 0000000000000001
[ 167.997158] FS: 00007f6a1428c740(0000) GS:ffff88839b000000(0000) knlGS:0000000000000000
[ 167.998238] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 167.999025] CR2: 00007f6a140716c8 CR3: 0000000133216000 CR4: 00000000000006e0
[ 167.999987] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 168.000944] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 168.001899] Call Trace:
[ 168.002235] <TASK>
[ 168.007167] ext4_bread+0xd/0x53
[ 168.007612] ext4_quota_write+0x20c/0x5c0
[ 168.010457] write_blk+0x100/0x220
[ 168.010944] remove_free_dqentry+0x1c6/0x440
[ 168.011525] free_dqentry.isra.0+0x565/0x830
[ 168.012133] remove_tree+0x318/0x6d0
[ 168.014744] remove_tree+0x1eb/0x6d0
[ 168.017346] remove_tree+0x1eb/0x6d0
[ 168.019969] remove_tree+0x1eb/0x6d0
[ 168.022128] qtree_release_dquot+0x291/0x340
[ 168.023297] v2_release_dquot+0xce/0x120
[ 168.023847] dquot_release+0x197/0x3e0
[ 168.024358] ext4_release_dquot+0x22a/0x2d0
[ 168.024932] dqput.part.0+0x1c9/0x900
[ 168.025430] __dquot_drop+0x120/0x190
[ 168.025942] ext4_clear_inode+0x86/0x220
[ 168.026472] ext4_evict_inode+0x9e8/0xa22
[ 168.028200] evict+0x29e/0x4f0
[ 168.028625] dispose_list+0x102/0x1f0
[ 168.029148] evict_inodes+0x2c1/0x3e0
[ 168.030188] generic_shutdown_super+0xa4/0x3b0
[ 168.030817] kill_block_super+0x95/0xd0
[ 168.031360] deactivate_locked_super+0x85/0xd0
[ 168.031977] cleanup_mnt+0x2bc/0x480
[ 168.033062] task_work_run+0xd1/0x170
[ 168.033565] do_exit+0xa4f/0x2b50
[ 168.037155] do_group_exit+0xef/0x2d0
[ 168.037666] __x64_sys_exit_group+0x3a/0x50
[ 168.038237] do_syscall_64+0x3b/0x90
[ 168.038751] entry_SYSCALL_64_after_hwframe+0x44/0xae
In order to reproduce this problem, the following conditions need to be met:
1. Ext4 filesystem with no journal;
2. Filesystem image with incorrect quota data;
3. Abort filesystem forced by user;
4. umount filesystem;
As in ext4_quota_write:
...
if (EXT4_SB(sb)->s_journal && !handle) {
ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
" cancelled because transaction is not started",
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
...
We only check handle if NULL when filesystem has journal. There is need
check handle if NULL even when filesystem has no journal.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20211223015506.297766-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
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
@@ -5869,7 +5869,7 @@ static ssize_t ext4_quota_write(struct s
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
- if (EXT4_SB(sb)->s_journal && !handle) {
+ if (!handle) {
ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
" cancelled because transaction is not started",
(unsigned long long)off, (unsigned long long)len);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 156/186] ext4: dont use the orphan list when migrating an inode
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (154 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 155/186] ext4: Fix BUG_ON in ext4_bread when write quota data Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 157/186] crypto: stm32/crc32 - Fix kernel BUG triggered in probe() Greg Kroah-Hartman
` (30 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Theodore Tso, Lukas Czerner, stable
From: Theodore Ts'o <tytso@mit.edu>
commit 6eeaf88fd586f05aaf1d48cb3a139d2a5c6eb055 upstream.
We probably want to remove the indirect block to extents migration
feature after a deprecation window, but until then, let's fix a
potential data loss problem caused by the fact that we put the
tmp_inode on the orphan list. In the unlikely case where we crash and
do a journal recovery, the data blocks belonging to the inode being
migrated are also represented in the tmp_inode on the orphan list ---
and so its data blocks will get marked unallocated, and available for
reuse.
Instead, stop putting the tmp_inode on the oprhan list. So in the
case where we crash while migrating the inode, we'll leak an inode,
which is not a disaster. It will be easily fixed the next time we run
fsck, and it's better than potentially having blocks getting claimed
by two different files, and losing data as a result.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/migrate.c | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -462,12 +462,12 @@ int ext4_ext_migrate(struct inode *inode
percpu_down_write(&sbi->s_writepages_rwsem);
/*
- * Worst case we can touch the allocation bitmaps, a bgd
- * block, and a block to link in the orphan list. We do need
- * need to worry about credits for modifying the quota inode.
+ * Worst case we can touch the allocation bitmaps and a block
+ * group descriptor block. We do need need to worry about
+ * credits for modifying the quota inode.
*/
handle = ext4_journal_start(inode, EXT4_HT_MIGRATE,
- 4 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));
+ 3 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle)) {
retval = PTR_ERR(handle);
@@ -488,10 +488,6 @@ int ext4_ext_migrate(struct inode *inode
* Use the correct seed for checksum (i.e. the seed from 'inode'). This
* is so that the metadata blocks will have the correct checksum after
* the migration.
- *
- * Note however that, if a crash occurs during the migration process,
- * the recovery process is broken because the tmp_inode checksums will
- * be wrong and the orphans cleanup will fail.
*/
ei = EXT4_I(inode);
EXT4_I(tmp_inode)->i_csum_seed = ei->i_csum_seed;
@@ -503,7 +499,6 @@ int ext4_ext_migrate(struct inode *inode
clear_nlink(tmp_inode);
ext4_ext_tree_init(handle, tmp_inode);
- ext4_orphan_add(handle, tmp_inode);
ext4_journal_stop(handle);
/*
@@ -528,12 +523,6 @@ int ext4_ext_migrate(struct inode *inode
handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
if (IS_ERR(handle)) {
- /*
- * It is impossible to update on-disk structures without
- * a handle, so just rollback in-core changes and live other
- * work to orphan_list_cleanup()
- */
- ext4_orphan_del(NULL, tmp_inode);
retval = PTR_ERR(handle);
goto out_tmp_inode;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 157/186] crypto: stm32/crc32 - Fix kernel BUG triggered in probe()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (155 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 156/186] ext4: dont use the orphan list when migrating an inode Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 158/186] drm/radeon: fix error handling in radeon_driver_open_kms Greg Kroah-Hartman
` (29 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel, linux-crypto
Cc: Greg Kroah-Hartman, stable, Marek Vasut, Alexandre Torgue,
Fabien Dessenne, Herbert Xu, Lionel Debieve, Nicolas Toromanoff,
linux-arm-kernel, linux-stm32, Nicolas Toromanoff
From: Marek Vasut <marex@denx.de>
commit 29009604ad4e3ef784fd9b9fef6f23610ddf633d upstream.
The include/linux/crypto.h struct crypto_alg field cra_driver_name description
states "Unique name of the transformation provider. " ... " this contains the
name of the chip or provider and the name of the transformation algorithm."
In case of the stm32-crc driver, field cra_driver_name is identical for all
registered transformation providers and set to the name of the driver itself,
which is incorrect. This patch fixes it by assigning a unique cra_driver_name
to each registered transformation provider.
The kernel crash is triggered when the driver calls crypto_register_shashes()
which calls crypto_register_shash(), which calls crypto_register_alg(), which
calls __crypto_register_alg(), which returns -EEXIST, which is propagated
back through this call chain. Upon -EEXIST from crypto_register_shash(), the
crypto_register_shashes() starts unregistering the providers back, and calls
crypto_unregister_shash(), which calls crypto_unregister_alg(), and this is
where the BUG() triggers due to incorrect cra_refcnt.
Fixes: b51dbe90912a ("crypto: stm32 - Support for STM32 CRC32 crypto module")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: <stable@vger.kernel.org> # 4.12+
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Fabien Dessenne <fabien.dessenne@st.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Lionel Debieve <lionel.debieve@st.com>
Cc: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-crypto@vger.kernel.org
Acked-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/crypto/stm32/stm32_crc32.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/crypto/stm32/stm32_crc32.c
+++ b/drivers/crypto/stm32/stm32_crc32.c
@@ -206,7 +206,7 @@ static struct shash_alg algs[] = {
.digestsize = CHKSUM_DIGEST_SIZE,
.base = {
.cra_name = "crc32",
- .cra_driver_name = DRIVER_NAME,
+ .cra_driver_name = "stm32-crc32-crc32",
.cra_priority = 200,
.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.cra_blocksize = CHKSUM_BLOCK_SIZE,
@@ -228,7 +228,7 @@ static struct shash_alg algs[] = {
.digestsize = CHKSUM_DIGEST_SIZE,
.base = {
.cra_name = "crc32c",
- .cra_driver_name = DRIVER_NAME,
+ .cra_driver_name = "stm32-crc32-crc32c",
.cra_priority = 200,
.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.cra_blocksize = CHKSUM_BLOCK_SIZE,
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 158/186] drm/radeon: fix error handling in radeon_driver_open_kms
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (156 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 157/186] crypto: stm32/crc32 - Fix kernel BUG triggered in probe() Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 159/186] firmware: Update Kconfig help text for Google firmware Greg Kroah-Hartman
` (28 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christian König, Jan Stancek,
Borislav Petkov, Alex Deucher
From: Christian König <christian.koenig@amd.com>
commit 4722f463896cc0ef1a6f1c3cb2e171e949831249 upstream.
The return value was never initialized so the cleanup code executed when
it isn't even necessary.
Just add proper error handling.
Fixes: ab50cb9df889 ("drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms()")
Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/radeon/radeon_kms.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -673,18 +673,18 @@ int radeon_driver_open_kms(struct drm_de
fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
if (unlikely(!fpriv)) {
r = -ENOMEM;
- goto out_suspend;
+ goto err_suspend;
}
if (rdev->accel_working) {
vm = &fpriv->vm;
r = radeon_vm_init(rdev, vm);
if (r)
- goto out_fpriv;
+ goto err_fpriv;
r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
if (r)
- goto out_vm_fini;
+ goto err_vm_fini;
/* map the ib pool buffer read only into
* virtual address space */
@@ -692,7 +692,7 @@ int radeon_driver_open_kms(struct drm_de
rdev->ring_tmp_bo.bo);
if (!vm->ib_bo_va) {
r = -ENOMEM;
- goto out_vm_fini;
+ goto err_vm_fini;
}
r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
@@ -700,19 +700,21 @@ int radeon_driver_open_kms(struct drm_de
RADEON_VM_PAGE_READABLE |
RADEON_VM_PAGE_SNOOPED);
if (r)
- goto out_vm_fini;
+ goto err_vm_fini;
}
file_priv->driver_priv = fpriv;
}
- if (!r)
- goto out_suspend;
+ pm_runtime_mark_last_busy(dev->dev);
+ pm_runtime_put_autosuspend(dev->dev);
+ return 0;
-out_vm_fini:
+err_vm_fini:
radeon_vm_fini(rdev, vm);
-out_fpriv:
+err_fpriv:
kfree(fpriv);
-out_suspend:
+
+err_suspend:
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
return r;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 159/186] firmware: Update Kconfig help text for Google firmware
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (157 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 158/186] drm/radeon: fix error handling in radeon_driver_open_kms Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 160/186] Documentation: refer to config RANDOMIZE_BASE for kernel address-space randomization Greg Kroah-Hartman
` (27 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Julius Werner, Ben Hutchings
From: Ben Hutchings <ben@decadent.org.uk>
commit d185a3466f0cd5af8f1c5c782c53bc0e6f2e7136 upstream.
The help text for GOOGLE_FIRMWARE states that it should only be
enabled when building a kernel for Google's own servers. However,
many of the drivers dependent on it are also useful on Chromebooks or
on any platform using coreboot.
Update the help text to reflect this double duty.
Fixes: d384d6f43d1e ("firmware: google memconsole: Add coreboot support")
Reviewed-by: Julius Werner <jwerner@chromium.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Link: https://lore.kernel.org/r/20180618225540.GD14131@decadent.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/firmware/google/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/firmware/google/Kconfig
+++ b/drivers/firmware/google/Kconfig
@@ -2,9 +2,9 @@ menuconfig GOOGLE_FIRMWARE
bool "Google Firmware Drivers"
default n
help
- These firmware drivers are used by Google's servers. They are
- only useful if you are working directly on one of their
- proprietary servers. If in doubt, say "N".
+ These firmware drivers are used by Google servers,
+ Chromebooks and other devices using coreboot firmware.
+ If in doubt, say "N".
if GOOGLE_FIRMWARE
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 160/186] Documentation: refer to config RANDOMIZE_BASE for kernel address-space randomization
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (158 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 159/186] firmware: Update Kconfig help text for Google firmware Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 161/186] RDMA/hns: Modify the mapping attribute of doorbell to device Greg Kroah-Hartman
` (26 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Lukas Bulwahn, Jonathan Corbet
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
commit 82ca67321f55a8d1da6ac3ed611da3c32818bb37 upstream.
The config RANDOMIZE_SLAB does not exist, the authors probably intended to
refer to the config RANDOMIZE_BASE, which provides kernel address-space
randomization. They probably just confused SLAB with BASE (these two
four-letter words coincidentally share three common letters), as they also
point out the config SLAB_FREELIST_RANDOM as further randomization within
the same sentence.
Fix the reference of the config for kernel address-space randomization to
the config that provides that.
Fixes: 6e88559470f5 ("Documentation: Add section about CPU vulnerabilities for Spectre")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20211230171940.27558-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
Documentation/admin-guide/hw-vuln/spectre.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -468,7 +468,7 @@ Spectre variant 2
before invoking any firmware code to prevent Spectre variant 2 exploits
using the firmware.
- Using kernel address space randomization (CONFIG_RANDOMIZE_SLAB=y
+ Using kernel address space randomization (CONFIG_RANDOMIZE_BASE=y
and CONFIG_SLAB_FREELIST_RANDOM=y in the kernel configuration) makes
attacks on the kernel generally more difficult.
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 161/186] RDMA/hns: Modify the mapping attribute of doorbell to device
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (159 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 160/186] Documentation: refer to config RANDOMIZE_BASE for kernel address-space randomization Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 162/186] RDMA/rxe: Fix a typo in opcode name Greg Kroah-Hartman
` (25 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yixing Liu, Wenpeng Liang, Jason Gunthorpe
From: Yixing Liu <liuyixing1@huawei.com>
commit 39d5534b1302189c809e90641ffae8cbdc42a8fc upstream.
It is more general for ARM device drivers to use the device attribute to
map PCI BAR spaces.
Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211206133652.27476-1-liangwenpeng@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/hw/hns/hns_roce_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -377,7 +377,7 @@ static int hns_roce_mmap(struct ib_ucont
return -EINVAL;
if (vma->vm_pgoff == 0) {
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ vma->vm_page_prot = pgprot_device(vma->vm_page_prot);
if (io_remap_pfn_range(vma, vma->vm_start,
to_hr_ucontext(context)->uar.pfn,
PAGE_SIZE, vma->vm_page_prot))
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 162/186] RDMA/rxe: Fix a typo in opcode name
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (160 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 161/186] RDMA/hns: Modify the mapping attribute of doorbell to device Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 163/186] powerpc/cell: Fix clang -Wimplicit-fallthrough warning Greg Kroah-Hartman
` (24 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chengguang Xu, Zhu Yanjun,
Bob Pearson, Jason Gunthorpe
From: Chengguang Xu <cgxu519@mykernel.net>
commit 8d1cfb884e881efd69a3be4ef10772c71cb22216 upstream.
There is a redundant ']' in the name of opcode IB_OPCODE_RC_SEND_MIDDLE,
so just fix it.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20211218112320.3558770-1-cgxu519@mykernel.net
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/sw/rxe/rxe_opcode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/sw/rxe/rxe_opcode.c
+++ b/drivers/infiniband/sw/rxe/rxe_opcode.c
@@ -137,7 +137,7 @@ struct rxe_opcode_info rxe_opcode[RXE_NU
}
},
[IB_OPCODE_RC_SEND_MIDDLE] = {
- .name = "IB_OPCODE_RC_SEND_MIDDLE]",
+ .name = "IB_OPCODE_RC_SEND_MIDDLE",
.mask = RXE_PAYLOAD_MASK | RXE_REQ_MASK | RXE_SEND_MASK
| RXE_MIDDLE_MASK,
.length = RXE_BTH_BYTES,
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 163/186] powerpc/cell: Fix clang -Wimplicit-fallthrough warning
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (161 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 162/186] RDMA/rxe: Fix a typo in opcode name Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:43 ` [PATCH 4.14 164/186] powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses Greg Kroah-Hartman
` (23 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Naresh Kamboju, Anders Roxell,
Nathan Chancellor, Arnd Bergmann, Michael Ellerman
From: Anders Roxell <anders.roxell@linaro.org>
commit e89257e28e844f5d1d39081bb901d9f1183a7705 upstream.
Clang warns:
arch/powerpc/platforms/cell/pervasive.c:81:2: error: unannotated fall-through between switch labels
case SRR1_WAKEEE:
^
arch/powerpc/platforms/cell/pervasive.c:81:2: note: insert 'break;' to avoid fall-through
case SRR1_WAKEEE:
^
break;
1 error generated.
Clang is more pedantic than GCC, which does not warn when failing
through to a case that is just break or return. Clang's version is more
in line with the kernel's own stance in deprecated.rst. Add athe missing
break to silence the warning.
Fixes: 6e83985b0f6e ("powerpc/cbe: Do not process external or decremeter interrupts from sreset")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211207110228.698956-1-anders.roxell@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/platforms/cell/pervasive.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -90,6 +90,7 @@ static int cbe_system_reset_exception(st
switch (regs->msr & SRR1_WAKEMASK) {
case SRR1_WAKEDEC:
set_dec(1);
+ break;
case SRR1_WAKEEE:
/*
* Handle these when interrupts get re-enabled and we take
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 164/186] powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (162 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 163/186] powerpc/cell: Fix clang -Wimplicit-fallthrough warning Greg Kroah-Hartman
@ 2022-01-24 18:43 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 165/186] net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module Greg Kroah-Hartman
` (22 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:43 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tobias Waldekranz, Jakub Kicinski
From: Tobias Waldekranz <tobias@waldekranz.com>
commit 0d375d610fa96524e2ee2b46830a46a7bfa92a9f upstream.
This block is used in (at least) T1024 and T1040, including their
variants like T1023 etc.
Fixes: d55ad2967d89 ("powerpc/mpc85xx: Create dts components for the FSL QorIQ DPAA FMan")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
@@ -78,6 +78,7 @@ fman0: fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xfc000 0x1000>;
+ fsl,erratum-a009885;
};
xmdio0: mdio@fd000 {
@@ -85,6 +86,7 @@ fman0: fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xfd000 0x1000>;
+ fsl,erratum-a009885;
};
ptp_timer0: ptp-timer@fe000 {
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 165/186] net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (163 preceding siblings ...)
2022-01-24 18:43 ` [PATCH 4.14 164/186] powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 166/186] parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries Greg Kroah-Hartman
` (21 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tobias Waldekranz, Andrew Lunn,
Jakub Kicinski
From: Tobias Waldekranz <tobias@waldekranz.com>
commit 3f7c239c7844d2044ed399399d97a5f1c6008e1b upstream.
As reported by sparse: In the remove path, the driver would attempt to
unmap its own priv pointer - instead of the io memory that it mapped
in probe.
Fixes: 9f35a7342cff ("net/fsl: introduce Freescale 10G MDIO driver")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/freescale/xgmac_mdio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -301,9 +301,10 @@ err_ioremap:
static int xgmac_mdio_remove(struct platform_device *pdev)
{
struct mii_bus *bus = platform_get_drvdata(pdev);
+ struct mdio_fsl_priv *priv = bus->priv;
mdiobus_unregister(bus);
- iounmap(bus->priv);
+ iounmap(priv->mdio_base);
mdiobus_free(bus);
return 0;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 166/186] parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (164 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 165/186] net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 167/186] af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress Greg Kroah-Hartman
` (20 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, Helge Deller
From: Miaoqian Lin <linmq006@gmail.com>
commit d24846a4246b6e61ecbd036880a4adf61681d241 upstream.
kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()：
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object.
Fix memory leak by calling kobject_put().
Fixes: 73f368cf679b ("Kobject: change drivers/parisc/pdc_stable.c to use kobject_init_and_add")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/parisc/pdc_stable.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -992,8 +992,10 @@ pdcs_register_pathentries(void)
entry->kobj.kset = paths_kset;
err = kobject_init_and_add(&entry->kobj, &ktype_pdcspath, NULL,
"%s", entry->name);
- if (err)
+ if (err) {
+ kobject_put(&entry->kobj);
return err;
+ }
/* kobject is now registered */
write_lock(&entry->rw_lock);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 167/186] af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (165 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 166/186] parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 168/186] net: axienet: Wait for PhyRstCmplt after core reset Greg Kroah-Hartman
` (19 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, syzbot, Jakub Kicinski
From: Eric Dumazet <edumazet@google.com>
commit 9d6d7f1cb67cdee15f1a0e85aacfb924e0e02435 upstream.
wait_for_unix_gc() reads unix_tot_inflight & gc_in_progress
without synchronization.
Adds READ_ONCE()/WRITE_ONCE() and their associated comments
to better document the intent.
BUG: KCSAN: data-race in unix_inflight / wait_for_unix_gc
write to 0xffffffff86e2b7c0 of 4 bytes by task 9380 on cpu 0:
unix_inflight+0x1e8/0x260 net/unix/scm.c:63
unix_attach_fds+0x10c/0x1e0 net/unix/scm.c:121
unix_scm_to_skb net/unix/af_unix.c:1674 [inline]
unix_dgram_sendmsg+0x679/0x16b0 net/unix/af_unix.c:1817
unix_seqpacket_sendmsg+0xcc/0x110 net/unix/af_unix.c:2258
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmmsg+0x267/0x4c0 net/socket.c:2549
__do_sys_sendmmsg net/socket.c:2578 [inline]
__se_sys_sendmmsg net/socket.c:2575 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2575
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
read to 0xffffffff86e2b7c0 of 4 bytes by task 9375 on cpu 1:
wait_for_unix_gc+0x24/0x160 net/unix/garbage.c:196
unix_dgram_sendmsg+0x8e/0x16b0 net/unix/af_unix.c:1772
unix_seqpacket_sendmsg+0xcc/0x110 net/unix/af_unix.c:2258
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmmsg+0x267/0x4c0 net/socket.c:2549
__do_sys_sendmmsg net/socket.c:2578 [inline]
__se_sys_sendmmsg net/socket.c:2575 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2575
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0x00000002 -> 0x00000004
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 9375 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: 9915672d4127 ("af_unix: limit unix_tot_inflight")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220114164328.2038499-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/unix/garbage.c | 14 +++++++++++---
net/unix/scm.c | 6 ++++--
2 files changed, 15 insertions(+), 5 deletions(-)
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -197,8 +197,11 @@ void wait_for_unix_gc(void)
{
/* If number of inflight sockets is insane,
* force a garbage collect right now.
+ * Paired with the WRITE_ONCE() in unix_inflight(),
+ * unix_notinflight() and gc_in_progress().
*/
- if (unix_tot_inflight > UNIX_INFLIGHT_TRIGGER_GC && !gc_in_progress)
+ if (READ_ONCE(unix_tot_inflight) > UNIX_INFLIGHT_TRIGGER_GC &&
+ !READ_ONCE(gc_in_progress))
unix_gc();
wait_event(unix_gc_wait, gc_in_progress == false);
}
@@ -218,7 +221,9 @@ void unix_gc(void)
if (gc_in_progress)
goto out;
- gc_in_progress = true;
+ /* Paired with READ_ONCE() in wait_for_unix_gc(). */
+ WRITE_ONCE(gc_in_progress, true);
+
/* First, select candidates for garbage collection. Only
* in-flight sockets are considered, and from those only ones
* which don't have any external reference.
@@ -304,7 +309,10 @@ void unix_gc(void)
/* All candidates should have been detached by now. */
BUG_ON(!list_empty(&gc_candidates));
- gc_in_progress = false;
+
+ /* Paired with READ_ONCE() in wait_for_unix_gc(). */
+ WRITE_ONCE(gc_in_progress, false);
+
wake_up(&unix_gc_wait);
out:
--- a/net/unix/scm.c
+++ b/net/unix/scm.c
@@ -57,7 +57,8 @@ void unix_inflight(struct user_struct *u
} else {
BUG_ON(list_empty(&u->link));
}
- unix_tot_inflight++;
+ /* Paired with READ_ONCE() in wait_for_unix_gc() */
+ WRITE_ONCE(unix_tot_inflight, unix_tot_inflight + 1);
}
user->unix_inflight++;
spin_unlock(&unix_gc_lock);
@@ -77,7 +78,8 @@ void unix_notinflight(struct user_struct
if (atomic_long_dec_and_test(&u->inflight))
list_del_init(&u->link);
- unix_tot_inflight--;
+ /* Paired with READ_ONCE() in wait_for_unix_gc() */
+ WRITE_ONCE(unix_tot_inflight, unix_tot_inflight - 1);
}
user->unix_inflight--;
spin_unlock(&unix_gc_lock);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 168/186] net: axienet: Wait for PhyRstCmplt after core reset
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (166 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 167/186] af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 169/186] net: axienet: fix number of TX ring slots for available check Greg Kroah-Hartman
` (18 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Robert Hancock, Andrew Lunn, David S. Miller
From: Robert Hancock <robert.hancock@calian.com>
commit b400c2f4f4c53c86594dd57098970d97d488bfde upstream.
When resetting the device, wait for the PhyRstCmplt bit to be set
in the interrupt status register before continuing initialization, to
ensure that the core is actually ready. When using an external PHY, this
also ensures we do not start trying to access the PHY while it is still
in reset. The PHY reset is initiated by the core reset which is
triggered just above, but remains asserted for 5ms after the core is
reset according to the documentation.
The MgtRdy bit could also be waited for, but unfortunately when using
7-series devices, the bit does not appear to work as documented (it
seems to behave as some sort of link state indication and not just an
indication the transceiver is ready) so it can't really be relied on for
this purpose.
Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -279,6 +279,16 @@ static int axienet_dma_bd_init(struct ne
axienet_dma_out32(lp, XAXIDMA_TX_CR_OFFSET,
cr | XAXIDMA_CR_RUNSTOP_MASK);
+ /* Wait for PhyRstCmplt bit to be set, indicating the PHY reset has finished */
+ ret = read_poll_timeout(axienet_ior, value,
+ value & XAE_INT_PHYRSTCMPLT_MASK,
+ DELAY_OF_ONE_MILLISEC, 50000, false, lp,
+ XAE_IS_OFFSET);
+ if (ret) {
+ dev_err(lp->dev, "%s: timeout waiting for PhyRstCmplt\n", __func__);
+ return ret;
+ }
+
return 0;
out:
axienet_dma_bd_release(ndev);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 169/186] net: axienet: fix number of TX ring slots for available check
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (167 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 168/186] net: axienet: Wait for PhyRstCmplt after core reset Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 170/186] netns: add schedule point in ops_exit_list() Greg Kroah-Hartman
` (17 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Robert Hancock, David S. Miller
From: Robert Hancock <robert.hancock@calian.com>
commit aba57a823d2985a2cc8c74a2535f3a88e68d9424 upstream.
The check for the number of available TX ring slots was off by 1 since a
slot is required for the skb header as well as each fragment. This could
result in overwriting a TX ring slot that was still in use.
Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -682,7 +682,7 @@ axienet_start_xmit(struct sk_buff *skb,
num_frag = skb_shinfo(skb)->nr_frags;
cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
- if (axienet_check_tx_bd_space(lp, num_frag)) {
+ if (axienet_check_tx_bd_space(lp, num_frag + 1)) {
if (netif_queue_stopped(ndev))
return NETDEV_TX_BUSY;
@@ -692,7 +692,7 @@ axienet_start_xmit(struct sk_buff *skb,
smp_mb();
/* Space might have just been freed - check again */
- if (axienet_check_tx_bd_space(lp, num_frag))
+ if (axienet_check_tx_bd_space(lp, num_frag + 1))
return NETDEV_TX_BUSY;
netif_wake_queue(ndev);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 170/186] netns: add schedule point in ops_exit_list()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (168 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 169/186] net: axienet: fix number of TX ring slots for available check Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 171/186] libcxgb: Dont accidentally set RTO_ONLINK in cxgb_find_route() Greg Kroah-Hartman
` (16 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Eric W. Biederman,
David S. Miller
From: Eric Dumazet <edumazet@google.com>
commit 2836615aa22de55b8fca5e32fe1b27a67cda625e upstream.
When under stress, cleanup_net() can have to dismantle
netns in big numbers. ops_exit_list() currently calls
many helpers [1] that have no schedule point, and we can
end up with soft lockups, particularly on hosts
with many cpus.
Even for moderate amount of netns processed by cleanup_net()
this patch avoids latency spikes.
[1] Some of these helpers like fib_sync_up() and fib_sync_down_dev()
are very slow because net/ipv4/fib_semantics.c uses host-wide hash tables,
and ifindex is used as the only input of two hash functions.
ifindexes tend to be the same for all netns (lo.ifindex==1 per instance)
This will be fixed in a separate patch.
Fixes: 72ad937abd0a ("net: Add support for batching network namespace cleanups")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/core/net_namespace.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -138,8 +138,10 @@ static void ops_exit_list(const struct p
{
struct net *net;
if (ops->exit) {
- list_for_each_entry(net, net_exit_list, exit_list)
+ list_for_each_entry(net, net_exit_list, exit_list) {
ops->exit(net);
+ cond_resched();
+ }
}
if (ops->exit_batch)
ops->exit_batch(net_exit_list);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 171/186] libcxgb: Dont accidentally set RTO_ONLINK in cxgb_find_route()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (169 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 170/186] netns: add schedule point in ops_exit_list() Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 172/186] dmaengine: at_xdmac: Dont start transactions at tx_submit level Greg Kroah-Hartman
` (15 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Guillaume Nault, Jakub Kicinski
From: Guillaume Nault <gnault@redhat.com>
commit a915deaa9abe4fb3a440312c954253a6a733608e upstream.
Mask the ECN bits before calling ip_route_output_ports(). The tos
variable might be passed directly from an IPv4 header, so it may have
the last ECN bit set. This interferes with the route lookup process as
ip_route_output_key_hash() interpretes this bit specially (to restrict
the route scope).
Found by code inspection, compile tested only.
Fixes: 804c2f3e36ef ("libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route()")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
+++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
@@ -32,6 +32,7 @@
#include <linux/tcp.h>
#include <linux/ipv6.h>
+#include <net/inet_ecn.h>
#include <net/route.h>
#include <net/ip6_route.h>
@@ -99,7 +100,7 @@ cxgb_find_route(struct cxgb4_lld_info *l
rt = ip_route_output_ports(&init_net, &fl4, NULL, peer_ip, local_ip,
peer_port, local_port, IPPROTO_TCP,
- tos, 0);
+ tos & ~INET_ECN_MASK, 0);
if (IS_ERR(rt))
return NULL;
n = dst_neigh_lookup(&rt->dst, &peer_ip);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 172/186] dmaengine: at_xdmac: Dont start transactions at tx_submit level
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (170 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 171/186] libcxgb: Dont accidentally set RTO_ONLINK in cxgb_find_route() Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 173/186] dmaengine: at_xdmac: Print debug message after realeasing the lock Greg Kroah-Hartman
` (14 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Tudor Ambarus, Vinod Koul
From: Tudor Ambarus <tudor.ambarus@microchip.com>
commit bccfb96b59179d4f96cbbd1ddff8fac6d335eae4 upstream.
tx_submit is supposed to push the current transaction descriptor to a
pending queue, waiting for issue_pending() to be called. issue_pending()
must start the transfer, not tx_submit(), thus remove
at_xdmac_start_xfer() from at_xdmac_tx_submit(). Clients of at_xdmac that
assume that tx_submit() starts the transfer must be updated and call
dma_async_issue_pending() if they miss to call it (one example is
atmel_serial).
As the at_xdmac_start_xfer() is now called only from
at_xdmac_advance_work() when !at_xdmac_chan_is_enabled(), the
at_xdmac_chan_is_enabled() check is no longer needed in
at_xdmac_start_xfer(), thus remove it.
Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-2-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/dma/at_xdmac.c | 6 ------
1 file changed, 6 deletions(-)
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -344,9 +344,6 @@ static void at_xdmac_start_xfer(struct a
dev_vdbg(chan2dev(&atchan->chan), "%s: desc 0x%p\n", __func__, first);
- if (at_xdmac_chan_is_enabled(atchan))
- return;
-
/* Set transfer as active to not try to start it again. */
first->active_xfer = true;
@@ -430,9 +427,6 @@ static dma_cookie_t at_xdmac_tx_submit(s
dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
__func__, atchan, desc);
list_add_tail(&desc->xfer_node, &atchan->xfers_list);
- if (list_is_singular(&atchan->xfers_list))
- at_xdmac_start_xfer(atchan, desc);
-
spin_unlock_irqrestore(&atchan->lock, irqflags);
return cookie;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 173/186] dmaengine: at_xdmac: Print debug message after realeasing the lock
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (171 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 172/186] dmaengine: at_xdmac: Dont start transactions at tx_submit level Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 174/186] dmaengine: at_xdmac: Fix lld view setting Greg Kroah-Hartman
` (13 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Tudor Ambarus, Vinod Koul
From: Tudor Ambarus <tudor.ambarus@microchip.com>
commit 5edc24ac876a928f36f407a0fcdb33b94a3a210f upstream.
It is desirable to do the prints without the lock held if possible, so
move the print after the lock is released.
Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-4-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/dma/at_xdmac.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -424,10 +424,12 @@ static dma_cookie_t at_xdmac_tx_submit(s
spin_lock_irqsave(&atchan->lock, irqflags);
cookie = dma_cookie_assign(tx);
- dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
- __func__, atchan, desc);
list_add_tail(&desc->xfer_node, &atchan->xfers_list);
spin_unlock_irqrestore(&atchan->lock, irqflags);
+
+ dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
+ __func__, atchan, desc);
+
return cookie;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 174/186] dmaengine: at_xdmac: Fix lld view setting
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (172 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 173/186] dmaengine: at_xdmac: Print debug message after realeasing the lock Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 175/186] dmaengine: at_xdmac: Fix at_xdmac_lld struct definition Greg Kroah-Hartman
` (12 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Tudor Ambarus, Vinod Koul
From: Tudor Ambarus <tudor.ambarus@microchip.com>
commit 1385eb4d14d447cc5d744bc2ac34f43be66c9963 upstream.
AT_XDMAC_CNDC_NDVIEW_NDV3 was set even for AT_XDMAC_MBR_UBC_NDV2,
because of the wrong bit handling. Fix it.
Fixes: ee0fe35c8dcd ("dmaengine: xdmac: Handle descriptor's view 3 registers")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-10-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/dma/at_xdmac.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -100,6 +100,7 @@
#define AT_XDMAC_CNDC_NDE (0x1 << 0) /* Channel x Next Descriptor Enable */
#define AT_XDMAC_CNDC_NDSUP (0x1 << 1) /* Channel x Next Descriptor Source Update */
#define AT_XDMAC_CNDC_NDDUP (0x1 << 2) /* Channel x Next Descriptor Destination Update */
+#define AT_XDMAC_CNDC_NDVIEW_MASK GENMASK(28, 27)
#define AT_XDMAC_CNDC_NDVIEW_NDV0 (0x0 << 3) /* Channel x Next Descriptor View 0 */
#define AT_XDMAC_CNDC_NDVIEW_NDV1 (0x1 << 3) /* Channel x Next Descriptor View 1 */
#define AT_XDMAC_CNDC_NDVIEW_NDV2 (0x2 << 3) /* Channel x Next Descriptor View 2 */
@@ -359,7 +360,8 @@ static void at_xdmac_start_xfer(struct a
*/
if (at_xdmac_chan_is_cyclic(atchan))
reg = AT_XDMAC_CNDC_NDVIEW_NDV1;
- else if (first->lld.mbr_ubc & AT_XDMAC_MBR_UBC_NDV3)
+ else if ((first->lld.mbr_ubc &
+ AT_XDMAC_CNDC_NDVIEW_MASK) == AT_XDMAC_MBR_UBC_NDV3)
reg = AT_XDMAC_CNDC_NDVIEW_NDV3;
else
reg = AT_XDMAC_CNDC_NDVIEW_NDV2;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 175/186] dmaengine: at_xdmac: Fix at_xdmac_lld struct definition
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (173 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 174/186] dmaengine: at_xdmac: Fix lld view setting Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 176/186] net_sched: restore "mpu xxx" handling Greg Kroah-Hartman
` (11 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Tudor Ambarus, Vinod Koul
From: Tudor Ambarus <tudor.ambarus@microchip.com>
commit 912f7c6f7fac273f40e621447cf17d14b50d6e5b upstream.
The hardware channel next descriptor view structure contains just
fields of 32 bits, while dma_addr_t can be of type u64 or u32
depending on CONFIG_ARCH_DMA_ADDR_T_64BIT. Force u32 to comply with
what the hardware expects.
Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-11-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/dma/at_xdmac.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -232,15 +232,15 @@ struct at_xdmac {
/* Linked List Descriptor */
struct at_xdmac_lld {
- dma_addr_t mbr_nda; /* Next Descriptor Member */
- u32 mbr_ubc; /* Microblock Control Member */
- dma_addr_t mbr_sa; /* Source Address Member */
- dma_addr_t mbr_da; /* Destination Address Member */
- u32 mbr_cfg; /* Configuration Register */
- u32 mbr_bc; /* Block Control Register */
- u32 mbr_ds; /* Data Stride Register */
- u32 mbr_sus; /* Source Microblock Stride Register */
- u32 mbr_dus; /* Destination Microblock Stride Register */
+ u32 mbr_nda; /* Next Descriptor Member */
+ u32 mbr_ubc; /* Microblock Control Member */
+ u32 mbr_sa; /* Source Address Member */
+ u32 mbr_da; /* Destination Address Member */
+ u32 mbr_cfg; /* Configuration Register */
+ u32 mbr_bc; /* Block Control Register */
+ u32 mbr_ds; /* Data Stride Register */
+ u32 mbr_sus; /* Source Microblock Stride Register */
+ u32 mbr_dus; /* Destination Microblock Stride Register */
};
/* 64-bit alignment needed to update CNDA and CUBC registers in an atomic way. */
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 176/186] net_sched: restore "mpu xxx" handling
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (174 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 175/186] dmaengine: at_xdmac: Fix at_xdmac_lld struct definition Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 177/186] bcmgenet: add WOL IRQ check Greg Kroah-Hartman
` (10 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kevin Bracey, Eric Dumazet,
Jiri Pirko, Vimalkumar, Jakub Kicinski
From: Kevin Bracey <kevin@bracey.fi>
commit fb80445c438c78b40b547d12b8d56596ce4ccfeb upstream.
commit 56b765b79e9a ("htb: improved accuracy at high rates") broke
"overhead X", "linklayer atm" and "mpu X" attributes.
"overhead X" and "linklayer atm" have already been fixed. This restores
the "mpu X" handling, as might be used by DOCSIS or Ethernet shaping:
tc class add ... htb rate X overhead 4 mpu 64
The code being fixed is used by htb, tbf and act_police. Cake has its
own mpu handling. qdisc_calculate_pkt_len still uses the size table
containing values adjusted for mpu by user space.
iproute2 tc has always passed mpu into the kernel via a tc_ratespec
structure, but the kernel never directly acted on it, merely stored it
so that it could be read back by `tc class show`.
Rather, tc would generate length-to-time tables that included the mpu
(and linklayer) in their construction, and the kernel used those tables.
Since v3.7, the tables were no longer used. Along with "mpu", this also
broke "overhead" and "linklayer" which were fixed in 01cb71d2d47b
("net_sched: restore "overhead xxx" handling", v3.10) and 8a8e3d84b171
("net_sched: restore "linklayer atm" handling", v3.11).
"overhead" was fixed by simply restoring use of tc_ratespec::overhead -
this had originally been used by the kernel but was initially omitted
from the new non-table-based calculations.
"linklayer" had been handled in the table like "mpu", but the mode was
not originally passed in tc_ratespec. The new implementation was made to
handle it by getting new versions of tc to pass the mode in an extended
tc_ratespec, and for older versions of tc the table contents were analysed
at load time to deduce linklayer.
As "mpu" has always been given to the kernel in tc_ratespec,
accompanying the mpu-based table, we can restore system functionality
with no userspace change by making the kernel act on the tc_ratespec
value.
Fixes: 56b765b79e9a ("htb: improved accuracy at high rates")
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Vimalkumar <j.vimal@gmail.com>
Link: https://lore.kernel.org/r/20220112170210.1014351-1-kevin@bracey.fi
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/net/sch_generic.h | 5 +++++
net/sched/sch_generic.c | 1 +
2 files changed, 6 insertions(+)
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -885,6 +885,7 @@ struct psched_ratecfg {
u64 rate_bytes_ps; /* bytes per second */
u32 mult;
u16 overhead;
+ u16 mpu;
u8 linklayer;
u8 shift;
};
@@ -894,6 +895,9 @@ static inline u64 psched_l2t_ns(const st
{
len += r->overhead;
+ if (len < r->mpu)
+ len = r->mpu;
+
if (unlikely(r->linklayer == TC_LINKLAYER_ATM))
return ((u64)(DIV_ROUND_UP(len,48)*53) * r->mult) >> r->shift;
@@ -916,6 +920,7 @@ static inline void psched_ratecfg_getrat
res->rate = min_t(u64, r->rate_bytes_ps, ~0U);
res->overhead = r->overhead;
+ res->mpu = r->mpu;
res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
}
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1010,6 +1010,7 @@ void psched_ratecfg_precompute(struct ps
{
memset(r, 0, sizeof(*r));
r->overhead = conf->overhead;
+ r->mpu = conf->mpu;
r->rate_bytes_ps = max_t(u64, conf->rate, rate64);
r->linklayer = (conf->linklayer & TC_LINKLAYER_MASK);
r->mult = 1;
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 177/186] bcmgenet: add WOL IRQ check
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (175 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 176/186] net_sched: restore "mpu xxx" handling Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 178/186] scripts/dtc: dtx_diff: remove broken example from help text Greg Kroah-Hartman
` (9 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergey Shtylyov, Florian Fainelli,
David S. Miller
From: Sergey Shtylyov <s.shtylyov@omp.ru>
commit 9deb48b53e7f4056c2eaa2dc2ee3338df619e4f6 upstream.
The driver neglects to check the result of platform_get_irq_optional()'s
call and blithely passes the negative error codes to devm_request_irq()
(which takes *unsigned* IRQ #), causing it to fail with -EINVAL.
Stop calling devm_request_irq() with the invalid IRQ #s.
Fixes: 8562056f267d ("net: bcmgenet: request Wake-on-LAN interrupt")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3519,10 +3519,12 @@ static int bcmgenet_probe(struct platfor
/* Request the WOL interrupt and advertise suspend if available */
priv->wol_irq_disabled = true;
- err = devm_request_irq(&pdev->dev, priv->wol_irq, bcmgenet_wol_isr, 0,
- dev->name, priv);
- if (!err)
- device_set_wakeup_capable(&pdev->dev, 1);
+ if (priv->wol_irq > 0) {
+ err = devm_request_irq(&pdev->dev, priv->wol_irq,
+ bcmgenet_wol_isr, 0, dev->name, priv);
+ if (!err)
+ device_set_wakeup_capable(&pdev->dev, 1);
+ }
/* Set the needed headroom to account for any possible
* features enabling/disabling at runtime
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 178/186] scripts/dtc: dtx_diff: remove broken example from help text
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (176 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 177/186] bcmgenet: add WOL IRQ check Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 179/186] lib82596: Fix IRQ check in sni_82596_probe Greg Kroah-Hartman
` (8 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Matthias Schiffer, Frank Rowand, Rob Herring
From: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
commit d8adf5b92a9d2205620874d498c39923ecea8749 upstream.
dtx_diff suggests to use <(...) syntax to pipe two inputs into it, but
this has never worked: The /proc/self/fds/... paths passed by the shell
will fail the `[ -f "${dtx}" ] && [ -r "${dtx}" ]` check in compile_to_dts,
but even with this check removed, the function cannot work: hexdump will
eat up the DTB magic, making the subsequent dtc call fail, as a pipe
cannot be rewound.
Simply remove this broken example, as there is already an alternative one
that works fine.
Fixes: 10eadc253ddf ("dtc: create tool to diff device trees")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220113081918.10387-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
scripts/dtc/dtx_diff | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/scripts/dtc/dtx_diff
+++ b/scripts/dtc/dtx_diff
@@ -56,12 +56,8 @@ Otherwise DTx is treated as a dts source
or '/include/' to be processed.
If DTx_1 and DTx_2 are in different architectures, then this script
- may not work since \${ARCH} is part of the include path. Two possible
- workarounds:
-
- `basename $0` \\
- <(ARCH=arch_of_dtx_1 `basename $0` DTx_1) \\
- <(ARCH=arch_of_dtx_2 `basename $0` DTx_2)
+ may not work since \${ARCH} is part of the include path. The following
+ workaround can be used:
`basename $0` ARCH=arch_of_dtx_1 DTx_1 >tmp_dtx_1.dts
`basename $0` ARCH=arch_of_dtx_2 DTx_2 >tmp_dtx_2.dts
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 179/186] lib82596: Fix IRQ check in sni_82596_probe
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (177 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 178/186] scripts/dtc: dtx_diff: remove broken example from help text Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 180/186] mips,s390,sh,sparc: gup: Work around the "COW can break either way" issue Greg Kroah-Hartman
` (7 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Miaoqian Lin, David S. Miller
From: Miaoqian Lin <linmq006@gmail.com>
commit 99218cbf81bf21355a3de61cd46a706d36e900e6 upstream.
platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:
int irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
Fix the check of return value to catch errors correctly.
Fixes: 115978859272 ("i825xx: Move the Intel 82586/82593/82596 based drivers")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/i825xx/sni_82596.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/i825xx/sni_82596.c
+++ b/drivers/net/ethernet/i825xx/sni_82596.c
@@ -122,9 +122,10 @@ static int sni_82596_probe(struct platfo
netdevice->dev_addr[5] = readb(eth_addr + 0x06);
iounmap(eth_addr);
- if (!netdevice->irq) {
+ if (netdevice->irq < 0) {
printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
__FILE__, netdevice->base_addr);
+ retval = netdevice->irq;
goto probe_failed;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 180/186] mips,s390,sh,sparc: gup: Work around the "COW can break either way" issue
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (178 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 179/186] lib82596: Fix IRQ check in sni_82596_probe Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 181/186] drm/ttm/nouveau: dont call tt destroy callback on alloc failure Greg Kroah-Hartman
` (6 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Greg Kroah-Hartman, Suren Baghdasaryan, Ben Hutchings
From: Ben Hutchings <ben@decadent.org.uk>
In Linux 4.14 and 4.19 these architectures still have their own
implementations of get_user_pages_fast(). These also need to force
the write flag on when taking the fast path.
Fixes: 407faed92b4a ("gup: document and work around "COW can break either way" issue")
Fixes: 5e24029791e8 ("gup: document and work around "COW can break either way" issue")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/mips/mm/gup.c | 9 ++++++++-
arch/s390/mm/gup.c | 9 ++++++++-
arch/sh/mm/gup.c | 9 ++++++++-
arch/sparc/mm/gup.c | 9 ++++++++-
4 files changed, 32 insertions(+), 4 deletions(-)
--- a/arch/mips/mm/gup.c
+++ b/arch/mips/mm/gup.c
@@ -272,7 +272,14 @@ int get_user_pages_fast(unsigned long st
next = pgd_addr_end(addr, end);
if (pgd_none(pgd))
goto slow;
- if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
+ /*
+ * The FAST_GUP case requires FOLL_WRITE even for pure reads,
+ * because get_user_pages() may need to cause an early COW in
+ * order to avoid confusing the normal COW routines. So only
+ * targets that are already writable are safe to do by just
+ * looking at the page tables.
+ */
+ if (!gup_pud_range(pgd, addr, next, 1, pages, &nr))
goto slow;
} while (pgdp++, addr = next, addr != end);
local_irq_enable();
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -285,7 +285,14 @@ int get_user_pages_fast(unsigned long st
might_sleep();
start &= PAGE_MASK;
- nr = __get_user_pages_fast(start, nr_pages, write, pages);
+ /*
+ * The FAST_GUP case requires FOLL_WRITE even for pure reads,
+ * because get_user_pages() may need to cause an early COW in
+ * order to avoid confusing the normal COW routines. So only
+ * targets that are already writable are safe to do by just
+ * looking at the page tables.
+ */
+ nr = __get_user_pages_fast(start, nr_pages, 1, pages);
if (nr == nr_pages)
return nr;
--- a/arch/sh/mm/gup.c
+++ b/arch/sh/mm/gup.c
@@ -240,7 +240,14 @@ int get_user_pages_fast(unsigned long st
next = pgd_addr_end(addr, end);
if (pgd_none(pgd))
goto slow;
- if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
+ /*
+ * The FAST_GUP case requires FOLL_WRITE even for pure reads,
+ * because get_user_pages() may need to cause an early COW in
+ * order to avoid confusing the normal COW routines. So only
+ * targets that are already writable are safe to do by just
+ * looking at the page tables.
+ */
+ if (!gup_pud_range(pgd, addr, next, 1, pages, &nr))
goto slow;
} while (pgdp++, addr = next, addr != end);
local_irq_enable();
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -262,7 +262,14 @@ int get_user_pages_fast(unsigned long st
next = pgd_addr_end(addr, end);
if (pgd_none(pgd))
goto slow;
- if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
+ /*
+ * The FAST_GUP case requires FOLL_WRITE even for pure reads,
+ * because get_user_pages() may need to cause an early COW in
+ * order to avoid confusing the normal COW routines. So only
+ * targets that are already writable are safe to do by just
+ * looking at the page tables.
+ */
+ if (!gup_pud_range(pgd, addr, next, 1, pages, &nr))
goto slow;
} while (pgdp++, addr = next, addr != end);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 181/186] drm/ttm/nouveau: dont call tt destroy callback on alloc failure.
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (179 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 180/186] mips,s390,sh,sparc: gup: Work around the "COW can break either way" issue Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 182/186] fuse: fix bad inode Greg Kroah-Hartman
` (5 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christian König, Dave Airlie,
Ben Hutchings
From: Dave Airlie <airlied@redhat.com>
commit 5de5b6ecf97a021f29403aa272cb4e03318ef586 upstream.
This is confusing, and from my reading of all the drivers only
nouveau got this right.
Just make the API act under driver control of it's own allocation
failing, and don't call destroy, if the page table fails to
create there is nothing to cleanup here.
(I'm willing to believe I've missed something here, so please
review deeply).
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200728041736.20689-1-airlied@gmail.com
[bwh: Backported to 4.14:
- Drop change in ttm_sg_tt_init()
- Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/nouveau/nouveau_sgdma.c | 9 +++------
drivers/gpu/drm/ttm/ttm_tt.c | 2 --
2 files changed, 3 insertions(+), 8 deletions(-)
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -106,12 +106,9 @@ nouveau_sgdma_create_ttm(struct ttm_bo_d
else
nvbe->ttm.ttm.func = &nv50_sgdma_backend;
- if (ttm_dma_tt_init(&nvbe->ttm, bdev, size, page_flags, dummy_read_page))
- /*
- * A failing ttm_dma_tt_init() will call ttm_tt_destroy()
- * and thus our nouveau_sgdma_destroy() hook, so we don't need
- * to free nvbe here.
- */
+ if (ttm_dma_tt_init(&nvbe->ttm, bdev, size, page_flags, dummy_read_page)) {
+ kfree(nvbe);
return NULL;
+ }
return &nvbe->ttm.ttm;
}
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -199,7 +199,6 @@ int ttm_tt_init(struct ttm_tt *ttm, stru
ttm_tt_alloc_page_directory(ttm);
if (!ttm->pages) {
- ttm_tt_destroy(ttm);
pr_err("Failed allocating page table\n");
return -ENOMEM;
}
@@ -232,7 +231,6 @@ int ttm_dma_tt_init(struct ttm_dma_tt *t
INIT_LIST_HEAD(&ttm_dma->pages_list);
ttm_dma_tt_alloc_page_directory(ttm_dma);
if (!ttm->pages) {
- ttm_tt_destroy(ttm);
pr_err("Failed allocating page table\n");
return -ENOMEM;
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 182/186] fuse: fix bad inode
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (180 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 181/186] drm/ttm/nouveau: dont call tt destroy callback on alloc failure Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 183/186] fuse: fix live lock in fuse_iget() Greg Kroah-Hartman
` (4 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Greg Kroah-Hartman, syzbot+f427adf9324b92652ccc, Miklos Szeredi,
Jan Kara, Ben Hutchings
From: Miklos Szeredi <mszeredi@redhat.com>
commit 5d069dbe8aaf2a197142558b6fb2978189ba3454 upstream.
Jan Kara's analysis of the syzbot report (edited):
The reproducer opens a directory on FUSE filesystem, it then attaches
dnotify mark to the open directory. After that a fuse_do_getattr() call
finds that attributes returned by the server are inconsistent, and calls
make_bad_inode() which, among other things does:
inode->i_mode = S_IFREG;
This then confuses dnotify which doesn't tear down its structures
properly and eventually crashes.
Avoid calling make_bad_inode() on a live inode: switch to a private flag on
the fuse inode. Also add the test to ops which the bad_inode_ops would
have caught.
This bug goes back to the initial merge of fuse in 2.6.14...
Reported-by: syzbot+f427adf9324b92652ccc@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Tested-by: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
[bwh: Backported to 4.19:
- Drop changes in fuse_dir_fsync(), fuse_readahead(), fuse_evict_inode()
- In fuse_get_link(), return ERR_PTR(-EIO) for bad inodes
- Convert some additional calls to is_bad_inode()
- Adjust filename, context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/acl.c | 6 ++++++
fs/fuse/dir.c | 40 +++++++++++++++++++++++++++++++++++-----
fs/fuse/file.c | 27 ++++++++++++++++++---------
fs/fuse/fuse_i.h | 12 ++++++++++++
fs/fuse/inode.c | 2 +-
fs/fuse/xattr.c | 9 +++++++++
6 files changed, 81 insertions(+), 15 deletions(-)
--- a/fs/fuse/acl.c
+++ b/fs/fuse/acl.c
@@ -19,6 +19,9 @@ struct posix_acl *fuse_get_acl(struct in
void *value = NULL;
struct posix_acl *acl;
+ if (fuse_is_bad(inode))
+ return ERR_PTR(-EIO);
+
if (!fc->posix_acl || fc->no_getxattr)
return NULL;
@@ -53,6 +56,9 @@ int fuse_set_acl(struct inode *inode, st
const char *name;
int ret;
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!fc->posix_acl || fc->no_setxattr)
return -EOPNOTSUPP;
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -187,7 +187,7 @@ static int fuse_dentry_revalidate(struct
int ret;
inode = d_inode_rcu(entry);
- if (inode && is_bad_inode(inode))
+ if (inode && fuse_is_bad(inode))
goto invalid;
else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
(flags & LOOKUP_REVAL)) {
@@ -364,6 +364,9 @@ static struct dentry *fuse_lookup(struct
bool outarg_valid = true;
bool locked;
+ if (fuse_is_bad(dir))
+ return ERR_PTR(-EIO);
+
locked = fuse_lock_inode(dir);
err = fuse_lookup_name(dir->i_sb, get_node_id(dir), &entry->d_name,
&outarg, &inode);
@@ -504,6 +507,9 @@ static int fuse_atomic_open(struct inode
struct fuse_conn *fc = get_fuse_conn(dir);
struct dentry *res = NULL;
+ if (fuse_is_bad(dir))
+ return -EIO;
+
if (d_in_lookup(entry)) {
res = fuse_lookup(dir, entry, 0);
if (IS_ERR(res))
@@ -551,6 +557,9 @@ static int create_new_entry(struct fuse_
int err;
struct fuse_forget_link *forget;
+ if (fuse_is_bad(dir))
+ return -EIO;
+
forget = fuse_alloc_forget();
if (!forget)
return -ENOMEM;
@@ -672,6 +681,9 @@ static int fuse_unlink(struct inode *dir
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
+ if (fuse_is_bad(dir))
+ return -EIO;
+
args.in.h.opcode = FUSE_UNLINK;
args.in.h.nodeid = get_node_id(dir);
args.in.numargs = 1;
@@ -708,6 +720,9 @@ static int fuse_rmdir(struct inode *dir,
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
+ if (fuse_is_bad(dir))
+ return -EIO;
+
args.in.h.opcode = FUSE_RMDIR;
args.in.h.nodeid = get_node_id(dir);
args.in.numargs = 1;
@@ -786,6 +801,9 @@ static int fuse_rename2(struct inode *ol
struct fuse_conn *fc = get_fuse_conn(olddir);
int err;
+ if (fuse_is_bad(olddir))
+ return -EIO;
+
if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE))
return -EINVAL;
@@ -921,7 +939,7 @@ static int fuse_do_getattr(struct inode
if (!err) {
if (fuse_invalid_attr(&outarg.attr) ||
(inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
- make_bad_inode(inode);
+ fuse_make_bad(inode);
err = -EIO;
} else {
fuse_change_attributes(inode, &outarg.attr,
@@ -1110,6 +1128,9 @@ static int fuse_permission(struct inode
bool refreshed = false;
int err = 0;
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!fuse_allow_current_process(fc))
return -EACCES;
@@ -1247,7 +1268,7 @@ retry:
dput(dentry);
goto retry;
}
- if (is_bad_inode(inode)) {
+ if (fuse_is_bad(inode)) {
dput(dentry);
return -EIO;
}
@@ -1345,7 +1366,7 @@ static int fuse_readdir(struct file *fil
u64 attr_version = 0;
bool locked;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
req = fuse_get_req(fc, 1);
@@ -1405,6 +1426,9 @@ static const char *fuse_get_link(struct
if (!dentry)
return ERR_PTR(-ECHILD);
+ if (fuse_is_bad(inode))
+ return ERR_PTR(-EIO);
+
link = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!link)
return ERR_PTR(-ENOMEM);
@@ -1703,7 +1727,7 @@ int fuse_do_setattr(struct dentry *dentr
if (fuse_invalid_attr(&outarg.attr) ||
(inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
- make_bad_inode(inode);
+ fuse_make_bad(inode);
err = -EIO;
goto error;
}
@@ -1759,6 +1783,9 @@ static int fuse_setattr(struct dentry *e
struct file *file = (attr->ia_valid & ATTR_FILE) ? attr->ia_file : NULL;
int ret;
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!fuse_allow_current_process(get_fuse_conn(inode)))
return -EACCES;
@@ -1817,6 +1844,9 @@ static int fuse_getattr(const struct pat
struct inode *inode = d_inode(path->dentry);
struct fuse_conn *fc = get_fuse_conn(inode);
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!fuse_allow_current_process(fc))
return -EACCES;
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -206,6 +206,9 @@ int fuse_open_common(struct inode *inode
fc->atomic_o_trunc &&
fc->writeback_cache;
+ if (fuse_is_bad(inode))
+ return -EIO;
+
err = generic_file_open(inode, file);
if (err)
return err;
@@ -407,7 +410,7 @@ static int fuse_flush(struct file *file,
struct fuse_flush_in inarg;
int err;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
if (fc->no_flush)
@@ -455,7 +458,7 @@ int fuse_fsync_common(struct file *file,
struct fuse_fsync_in inarg;
int err;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
inode_lock(inode);
@@ -770,7 +773,7 @@ static int fuse_readpage(struct file *fi
int err;
err = -EIO;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
goto out;
err = fuse_do_readpage(file, page);
@@ -897,7 +900,7 @@ static int fuse_readpages(struct file *f
int nr_alloc = min_t(unsigned, nr_pages, FUSE_MAX_PAGES_PER_REQ);
err = -EIO;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
goto out;
data.file = file;
@@ -927,6 +930,9 @@ static ssize_t fuse_file_read_iter(struc
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct fuse_conn *fc = get_fuse_conn(inode);
+ if (fuse_is_bad(inode))
+ return -EIO;
+
/*
* In auto invalidate mode, always update attributes on read.
* Otherwise, only update if we attempt to read past EOF (to ensure
@@ -1127,7 +1133,7 @@ static ssize_t fuse_perform_write(struct
int err = 0;
ssize_t res = 0;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
if (inode->i_size < pos + iov_iter_count(ii))
@@ -1184,6 +1190,9 @@ static ssize_t fuse_file_write_iter(stru
ssize_t err;
loff_t endbyte = 0;
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (get_fuse_conn(inode)->writeback_cache) {
/* Update size (EOF optimization) and mode (SUID clearing) */
err = fuse_update_attributes(mapping->host, file);
@@ -1420,7 +1429,7 @@ static ssize_t __fuse_direct_read(struct
ssize_t res;
struct inode *inode = file_inode(io->iocb->ki_filp);
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
res = fuse_direct_io(io, iter, ppos, 0);
@@ -1442,7 +1451,7 @@ static ssize_t fuse_direct_write_iter(st
struct fuse_io_priv io = FUSE_IO_PRIV_SYNC(iocb);
ssize_t res;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
/* Don't allow parallel writes to the same file */
@@ -1916,7 +1925,7 @@ static int fuse_writepages(struct addres
int err;
err = -EIO;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
goto out;
data.inode = inode;
@@ -2701,7 +2710,7 @@ long fuse_ioctl_common(struct file *file
if (!fuse_allow_current_process(fc))
return -EACCES;
- if (is_bad_inode(inode))
+ if (fuse_is_bad(inode))
return -EIO;
return fuse_do_ioctl(file, cmd, arg, flags);
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -117,6 +117,8 @@ enum {
FUSE_I_INIT_RDPLUS,
/** An operation changing file size is in progress */
FUSE_I_SIZE_UNSTABLE,
+ /* Bad inode */
+ FUSE_I_BAD,
};
struct fuse_conn;
@@ -687,6 +689,16 @@ static inline u64 get_node_id(struct ino
return get_fuse_inode(inode)->nodeid;
}
+static inline void fuse_make_bad(struct inode *inode)
+{
+ set_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state);
+}
+
+static inline bool fuse_is_bad(struct inode *inode)
+{
+ return unlikely(test_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state));
+}
+
/** Device operations */
extern const struct file_operations fuse_dev_operations;
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -317,7 +317,7 @@ struct inode *fuse_iget(struct super_blo
unlock_new_inode(inode);
} else if ((inode->i_mode ^ attr->mode) & S_IFMT) {
/* Inode has changed type, any I/O on the old should fail */
- make_bad_inode(inode);
+ fuse_make_bad(inode);
iput(inode);
goto retry;
}
--- a/fs/fuse/xattr.c
+++ b/fs/fuse/xattr.c
@@ -113,6 +113,9 @@ ssize_t fuse_listxattr(struct dentry *en
struct fuse_getxattr_out outarg;
ssize_t ret;
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!fuse_allow_current_process(fc))
return -EACCES;
@@ -178,6 +181,9 @@ static int fuse_xattr_get(const struct x
struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size)
{
+ if (fuse_is_bad(inode))
+ return -EIO;
+
return fuse_getxattr(inode, name, value, size);
}
@@ -186,6 +192,9 @@ static int fuse_xattr_set(const struct x
const char *name, const void *value, size_t size,
int flags)
{
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!value)
return fuse_removexattr(inode, name);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 183/186] fuse: fix live lock in fuse_iget()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (181 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 182/186] fuse: fix bad inode Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 184/186] gianfar: simplify FCS handling and fix memory leak Greg Kroah-Hartman
` (3 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Greg Kroah-Hartman, Amir Goldstein, Miklos Szeredi, Ben Hutchings
From: Amir Goldstein <amir73il@gmail.com>
commit 775c5033a0d164622d9d10dd0f0a5531639ed3ed upstream.
Commit 5d069dbe8aaf ("fuse: fix bad inode") replaced make_bad_inode()
in fuse_iget() with a private implementation fuse_make_bad().
The private implementation fails to remove the bad inode from inode
cache, so the retry loop with iget5_locked() finds the same bad inode
and marks it bad forever.
kmsg snip:
[ ] rcu: INFO: rcu_sched self-detected stall on CPU
...
[ ] ? bit_wait_io+0x50/0x50
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ? find_inode.isra.32+0x60/0xb0
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ilookup5_nowait+0x65/0x90
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ilookup5.part.36+0x2e/0x80
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ? fuse_inode_eq+0x20/0x20
[ ] iget5_locked+0x21/0x80
[ ] ? fuse_inode_eq+0x20/0x20
[ ] fuse_iget+0x96/0x1b0
Fixes: 5d069dbe8aaf ("fuse: fix bad inode")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/fuse_i.h | 1 +
1 file changed, 1 insertion(+)
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -691,6 +691,7 @@ static inline u64 get_node_id(struct ino
static inline void fuse_make_bad(struct inode *inode)
{
+ remove_inode_hash(inode);
set_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state);
}
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 184/186] gianfar: simplify FCS handling and fix memory leak
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (182 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 183/186] fuse: fix live lock in fuse_iget() Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 185/186] gianfar: fix jumbo packets+napi+rx overrun crash Greg Kroah-Hartman
` (2 subsequent siblings)
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Spencer, Jim Gruen,
David S. Miller, Ben Hutchings
From: Andy Spencer <aspencer@spacex.com>
commit d903ec77118c09f93a610b384d83a6df33a64fe6 upstream.
Previously, buffer descriptors containing only the frame check sequence
(FCS) were skipped and not added to the skb. However, the page reference
count was still incremented, leading to a memory leak.
Fixing this inside gfar_add_rx_frag() is difficult due to reserved
memory handling and page reuse. Instead, move the FCS handling to
gfar_process_frame() and trim off the FCS before passing the skb up the
networking stack.
Signed-off-by: Andy Spencer <aspencer@spacex.com>
Signed-off-by: Jim Gruen <jgruen@spacex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/freescale/gianfar.c | 23 +++++++----------------
1 file changed, 7 insertions(+), 16 deletions(-)
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2936,29 +2936,17 @@ static bool gfar_add_rx_frag(struct gfar
{
int size = lstatus & BD_LENGTH_MASK;
struct page *page = rxb->page;
- bool last = !!(lstatus & BD_LFLAG(RXBD_LAST));
-
- /* Remove the FCS from the packet length */
- if (last)
- size -= ETH_FCS_LEN;
if (likely(first)) {
skb_put(skb, size);
} else {
/* the last fragments' length contains the full frame length */
- if (last)
+ if (lstatus & BD_LFLAG(RXBD_LAST))
size -= skb->len;
- /* Add the last fragment if it contains something other than
- * the FCS, otherwise drop it and trim off any part of the FCS
- * that was already received.
- */
- if (size > 0)
- skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
- rxb->page_offset + RXBUF_ALIGNMENT,
- size, GFAR_RXB_TRUESIZE);
- else if (size < 0)
- pskb_trim(skb, skb->len + size);
+ skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
+ rxb->page_offset + RXBUF_ALIGNMENT,
+ size, GFAR_RXB_TRUESIZE);
}
/* try reuse page */
@@ -3071,6 +3059,9 @@ static void gfar_process_frame(struct ne
if (priv->padding)
skb_pull(skb, priv->padding);
+ /* Trim off the FCS */
+ pskb_trim(skb, skb->len - ETH_FCS_LEN);
+
if (ndev->features & NETIF_F_RXCSUM)
gfar_rx_checksum(skb, fcb);
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 185/186] gianfar: fix jumbo packets+napi+rx overrun crash
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (183 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 184/186] gianfar: simplify FCS handling and fix memory leak Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-24 18:44 ` [PATCH 4.14 186/186] NFSv4: Initialise connection to the server in nfs4_alloc_client() Greg Kroah-Hartman
2022-01-25 11:28 ` [PATCH 4.14 000/186] 4.14.263-rc1 review Naresh Kamboju
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Braun, David S. Miller,
Ben Hutchings
From: Michael Braun <michael-dev@fami-braun.de>
commit d8861bab48b6c1fc3cdbcab8ff9d1eaea43afe7f upstream.
When using jumbo packets and overrunning rx queue with napi enabled,
the following sequence is observed in gfar_add_rx_frag:
| lstatus | | skb |
t | lstatus, size, flags | first | len, data_len, *ptr |
---+--------------------------------------+-------+-----------------------+
13 | 18002348, 9032, INTERRUPT LAST | 0 | 9600, 8000, f554c12e |
12 | 10000640, 1600, INTERRUPT | 0 | 8000, 6400, f554c12e |
11 | 10000640, 1600, INTERRUPT | 0 | 6400, 4800, f554c12e |
10 | 10000640, 1600, INTERRUPT | 0 | 4800, 3200, f554c12e |
09 | 10000640, 1600, INTERRUPT | 0 | 3200, 1600, f554c12e |
08 | 14000640, 1600, INTERRUPT FIRST | 0 | 1600, 0, f554c12e |
07 | 14000640, 1600, INTERRUPT FIRST | 1 | 0, 0, f554c12e |
06 | 1c000080, 128, INTERRUPT LAST FIRST | 1 | 0, 0, abf3bd6e |
05 | 18002348, 9032, INTERRUPT LAST | 0 | 8000, 6400, c5a57780 |
04 | 10000640, 1600, INTERRUPT | 0 | 6400, 4800, c5a57780 |
03 | 10000640, 1600, INTERRUPT | 0 | 4800, 3200, c5a57780 |
02 | 10000640, 1600, INTERRUPT | 0 | 3200, 1600, c5a57780 |
01 | 10000640, 1600, INTERRUPT | 0 | 1600, 0, c5a57780 |
00 | 14000640, 1600, INTERRUPT FIRST | 1 | 0, 0, c5a57780 |
So at t=7 a new packets is started but not finished, probably due to rx
overrun - but rx overrun is not indicated in the flags. Instead a new
packets starts at t=8. This results in skb->len to exceed size for the LAST
fragment at t=13 and thus a negative fragment size added to the skb.
This then crashes:
kernel BUG at include/linux/skbuff.h:2277!
Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [c04689f4] skb_pull+0x2c/0x48
LR [c03f62ac] gfar_clean_rx_ring+0x2e4/0x844
Call Trace:
[ec4bfd38] [c06a84c4] _raw_spin_unlock_irqrestore+0x60/0x7c (unreliable)
[ec4bfda8] [c03f6a44] gfar_poll_rx_sq+0x48/0xe4
[ec4bfdc8] [c048d504] __napi_poll+0x54/0x26c
[ec4bfdf8] [c048d908] net_rx_action+0x138/0x2c0
[ec4bfe68] [c06a8f34] __do_softirq+0x3a4/0x4fc
[ec4bfed8] [c0040150] run_ksoftirqd+0x58/0x70
[ec4bfee8] [c0066ecc] smpboot_thread_fn+0x184/0x1cc
[ec4bff08] [c0062718] kthread+0x140/0x144
[ec4bff38] [c0012350] ret_from_kernel_thread+0x14/0x1c
This patch fixes this by checking for computed LAST fragment size, so a
negative sized fragment is never added.
In order to prevent the newer rx frame from getting corrupted, the FIRST
flag is checked to discard the incomplete older frame.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/freescale/gianfar.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2944,6 +2944,10 @@ static bool gfar_add_rx_frag(struct gfar
if (lstatus & BD_LFLAG(RXBD_LAST))
size -= skb->len;
+ WARN(size < 0, "gianfar: rx fragment size underflow");
+ if (size < 0)
+ return false;
+
skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
rxb->page_offset + RXBUF_ALIGNMENT,
size, GFAR_RXB_TRUESIZE);
@@ -3105,6 +3109,17 @@ int gfar_clean_rx_ring(struct gfar_priv_
if (lstatus & BD_LFLAG(RXBD_EMPTY))
break;
+ /* lost RXBD_LAST descriptor due to overrun */
+ if (skb &&
+ (lstatus & BD_LFLAG(RXBD_FIRST))) {
+ /* discard faulty buffer */
+ dev_kfree_skb(skb);
+ skb = NULL;
+ rx_queue->stats.rx_dropped++;
+
+ /* can continue normally */
+ }
+
/* order rx buffer descriptor reads */
rmb();
^ permalink raw reply [flat|nested] 190+ messages in thread* [PATCH 4.14 186/186] NFSv4: Initialise connection to the server in nfs4_alloc_client()
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (184 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 185/186] gianfar: fix jumbo packets+napi+rx overrun crash Greg Kroah-Hartman
@ 2022-01-24 18:44 ` Greg Kroah-Hartman
2022-01-25 11:28 ` [PATCH 4.14 000/186] 4.14.263-rc1 review Naresh Kamboju
186 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-24 18:44 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Wakabayashi, Trond Myklebust
From: Trond Myklebust <trond.myklebust@hammerspace.com>
commit dd99e9f98fbf423ff6d365b37a98e8879170f17c upstream.
Set up the connection to the NFSv4 server in nfs4_alloc_client(), before
we've added the struct nfs_client to the net-namespace's nfs_client_list
so that a downed server won't cause other mounts to hang in the trunking
detection code.
Reported-by: Michael Wakabayashi <mwakabayashi@vmware.com>
Fixes: 5c6e5b60aae4 ("NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nfs/nfs4client.c | 82 ++++++++++++++++++++++++++--------------------------
1 file changed, 42 insertions(+), 40 deletions(-)
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -177,8 +177,11 @@ void nfs40_shutdown_client(struct nfs_cl
struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
{
- int err;
+ char buf[INET6_ADDRSTRLEN + 1];
+ const char *ip_addr = cl_init->ip_addr;
struct nfs_client *clp = nfs_alloc_client(cl_init);
+ int err;
+
if (IS_ERR(clp))
return clp;
@@ -202,6 +205,44 @@ struct nfs_client *nfs4_alloc_client(con
#if IS_ENABLED(CONFIG_NFS_V4_1)
init_waitqueue_head(&clp->cl_lock_waitq);
#endif
+
+ if (cl_init->minorversion != 0)
+ __set_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags);
+ __set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
+ __set_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags);
+
+ /*
+ * Set up the connection to the server before we add add to the
+ * global list.
+ */
+ err = nfs_create_rpc_client(clp, cl_init, RPC_AUTH_GSS_KRB5I);
+ if (err == -EINVAL)
+ err = nfs_create_rpc_client(clp, cl_init, RPC_AUTH_UNIX);
+ if (err < 0)
+ goto error;
+
+ /* If no clientaddr= option was specified, find a usable cb address */
+ if (ip_addr == NULL) {
+ struct sockaddr_storage cb_addr;
+ struct sockaddr *sap = (struct sockaddr *)&cb_addr;
+
+ err = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));
+ if (err < 0)
+ goto error;
+ err = rpc_ntop(sap, buf, sizeof(buf));
+ if (err < 0)
+ goto error;
+ ip_addr = (const char *)buf;
+ }
+ strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
+
+ err = nfs_idmap_new(clp);
+ if (err < 0) {
+ dprintk("%s: failed to create idmapper. Error = %d\n",
+ __func__, err);
+ goto error;
+ }
+ __set_bit(NFS_CS_IDMAP, &clp->cl_res_state);
return clp;
error:
@@ -354,8 +395,6 @@ static int nfs4_init_client_minor_versio
struct nfs_client *nfs4_init_client(struct nfs_client *clp,
const struct nfs_client_initdata *cl_init)
{
- char buf[INET6_ADDRSTRLEN + 1];
- const char *ip_addr = cl_init->ip_addr;
struct nfs_client *old;
int error;
@@ -363,43 +402,6 @@ struct nfs_client *nfs4_init_client(stru
/* the client is initialised already */
return clp;
- /* Check NFS protocol revision and initialize RPC op vector */
- clp->rpc_ops = &nfs_v4_clientops;
-
- if (clp->cl_minorversion != 0)
- __set_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags);
- __set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
- __set_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags);
-
- error = nfs_create_rpc_client(clp, cl_init, RPC_AUTH_GSS_KRB5I);
- if (error == -EINVAL)
- error = nfs_create_rpc_client(clp, cl_init, RPC_AUTH_UNIX);
- if (error < 0)
- goto error;
-
- /* If no clientaddr= option was specified, find a usable cb address */
- if (ip_addr == NULL) {
- struct sockaddr_storage cb_addr;
- struct sockaddr *sap = (struct sockaddr *)&cb_addr;
-
- error = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));
- if (error < 0)
- goto error;
- error = rpc_ntop(sap, buf, sizeof(buf));
- if (error < 0)
- goto error;
- ip_addr = (const char *)buf;
- }
- strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
-
- error = nfs_idmap_new(clp);
- if (error < 0) {
- dprintk("%s: failed to create idmapper. Error = %d\n",
- __func__, error);
- goto error;
- }
- __set_bit(NFS_CS_IDMAP, &clp->cl_res_state);
-
error = nfs4_init_client_minor_version(clp);
if (error < 0)
goto error;
^ permalink raw reply [flat|nested] 190+ messages in thread* Re: [PATCH 4.14 000/186] 4.14.263-rc1 review
2022-01-24 18:41 [PATCH 4.14 000/186] 4.14.263-rc1 review Greg Kroah-Hartman
` (185 preceding siblings ...)
2022-01-24 18:44 ` [PATCH 4.14 186/186] NFSv4: Initialise connection to the server in nfs4_alloc_client() Greg Kroah-Hartman
@ 2022-01-25 11:28 ` Naresh Kamboju
2022-01-25 12:12 ` Naresh Kamboju
186 siblings, 1 reply; 190+ messages in thread
From: Naresh Kamboju @ 2022-01-25 11:28 UTC (permalink / raw)
To: Greg Kroah-Hartman, Dan Carpenter, Lucas Stach, Christian Gmeiner
Cc: linux-kernel, torvalds, akpm, linux, shuah, patches, lkft-triage,
pavel, jonathanh, f.fainelli, sudipm.mukherjee, stable
On Tue, 25 Jan 2022 at 00:34, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 4.14.263 release.
> There are 186 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 Jan 2022 18:39:11 +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-4.14.263-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
Following patch caused build failures on arm imx_v6_v7_defconfig
> Lucas Stach <l.stach@pengutronix.de>
> drm/etnaviv: limit submit sizes
build/clang-nightly-imx_v6_v7_defconfig
build/gcc-11-imx_v6_v7_defconfig
build/gcc-10-imx_v6_v7_defconfig
build/clang-11-imx_v6_v7_defconfig
build/clang-12-imx_v6_v7_defconfig
build/clang-13-imx_v6_v7_defconfig
Error:
-------
make --silent --keep-going --jobs=8 ARCH=arm
CROSS_COMPILE=arm-linux-gnueabihf- 'CC=sccache
arm-linux-gnueabihf-gcc' 'HOSTCC=sccache gcc'
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c: In function
'etnaviv_ioctl_gem_submit':
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c:345:37: error: 'struct
drm_etnaviv_gem_submit' has no member named 'nr_pmrs'; did you mean
'nr_bos'?
args->nr_bos > SZ_64K || args->nr_pmrs > 128) {
^~~~~~~
nr_bos
make[5]: *** [scripts/Makefile.build:329:
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.o] Error 1
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
--
Linaro LKFT
https://lkft.linaro.org
^ permalink raw reply [flat|nested] 190+ messages in thread* Re: [PATCH 4.14 000/186] 4.14.263-rc1 review
2022-01-25 11:28 ` [PATCH 4.14 000/186] 4.14.263-rc1 review Naresh Kamboju
@ 2022-01-25 12:12 ` Naresh Kamboju
2022-01-25 12:40 ` Greg Kroah-Hartman
0 siblings, 1 reply; 190+ messages in thread
From: Naresh Kamboju @ 2022-01-25 12:12 UTC (permalink / raw)
To: Greg Kroah-Hartman, Christian Gmeiner, Dan Carpenter, Lucas Stach
Cc: linux-kernel, torvalds, akpm, linux, shuah, patches, lkft-triage,
pavel, jonathanh, f.fainelli, sudipm.mukherjee, stable
On Tue, 25 Jan 2022 at 16:58, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>
> On Tue, 25 Jan 2022 at 00:34, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 4.14.263 release.
> > There are 186 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 Jan 2022 18:39:11 +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-4.14.263-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
>
> Following patch caused build failures on arm imx_v6_v7_defconfig
>
> > Lucas Stach <l.stach@pengutronix.de>
> > drm/etnaviv: limit submit sizes
The following patch might be missing,
commit 05916bed11b6d4c61b473a76220151a7d0547164
Christian Gmeiner <christian.gmeiner@gmail.com>
drm/etnaviv: add uapi for perfmon feature
>
> build/clang-nightly-imx_v6_v7_defconfig
> build/gcc-11-imx_v6_v7_defconfig
> build/gcc-10-imx_v6_v7_defconfig
> build/clang-11-imx_v6_v7_defconfig
> build/clang-12-imx_v6_v7_defconfig
> build/clang-13-imx_v6_v7_defconfig
>
> Error:
> -------
> make --silent --keep-going --jobs=8 ARCH=arm
> CROSS_COMPILE=arm-linux-gnueabihf- 'CC=sccache
> arm-linux-gnueabihf-gcc' 'HOSTCC=sccache gcc'
>
> drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c: In function
> 'etnaviv_ioctl_gem_submit':
> drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c:345:37: error: 'struct
> drm_etnaviv_gem_submit' has no member named 'nr_pmrs'; did you mean
> 'nr_bos'?
> args->nr_bos > SZ_64K || args->nr_pmrs > 128) {
> ^~~~~~~
> nr_bos
> make[5]: *** [scripts/Makefile.build:329:
> drivers/gpu/drm/etnaviv/etnaviv_gem_submit.o] Error 1
>
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>
> --
> Linaro LKFT
> https://lkft.linaro.org
^ permalink raw reply [flat|nested] 190+ messages in thread* Re: [PATCH 4.14 000/186] 4.14.263-rc1 review
2022-01-25 12:12 ` Naresh Kamboju
@ 2022-01-25 12:40 ` Greg Kroah-Hartman
0 siblings, 0 replies; 190+ messages in thread
From: Greg Kroah-Hartman @ 2022-01-25 12:40 UTC (permalink / raw)
To: Naresh Kamboju
Cc: Christian Gmeiner, Dan Carpenter, Lucas Stach, linux-kernel,
torvalds, akpm, linux, shuah, patches, lkft-triage, pavel,
jonathanh, f.fainelli, sudipm.mukherjee, stable
On Tue, Jan 25, 2022 at 05:42:18PM +0530, Naresh Kamboju wrote:
> On Tue, 25 Jan 2022 at 16:58, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
> >
> > On Tue, 25 Jan 2022 at 00:34, Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > This is the start of the stable review cycle for the 4.14.263 release.
> > > There are 186 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 Jan 2022 18:39:11 +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-4.14.263-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
> >
> > Following patch caused build failures on arm imx_v6_v7_defconfig
> >
> > > Lucas Stach <l.stach@pengutronix.de>
> > > drm/etnaviv: limit submit sizes
>
> The following patch might be missing,
>
> commit 05916bed11b6d4c61b473a76220151a7d0547164
> Christian Gmeiner <christian.gmeiner@gmail.com>
> drm/etnaviv: add uapi for perfmon feature
>
>
Thanks, I'll drop the limit commit from 4.14 and older as it doesn't
seem like this option is present on kernels older than 4.15.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 190+ messages in thread