From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Takashi Sakamoto <o-takashi@sakamocchi.jp>,
Takashi Iwai <tiwai@suse.de>
Subject: [PATCH 4.14 19/64] ALSA: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping
Date: Thu, 27 Sep 2018 11:03:36 +0200 [thread overview]
Message-ID: <20180927090252.531361548@linuxfoundation.org> (raw)
In-Reply-To: <20180927090249.801943776@linuxfoundation.org>
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
commit 493626f2d87a74e6dbea1686499ed6e7e600484e upstream.
When executing 'fw_run_transaction()' with 'TCODE_WRITE_BLOCK_REQUEST',
an address of 'payload' argument is used for streaming DMA mapping by
'firewire_ohci' module if 'size' argument is larger than 8 byte.
Although in this case the address should not be on kernel stack, current
implementation of ALSA bebob driver uses data in kernel stack for a cue
to boot M-Audio devices. This often brings unexpected result, especially
for a case of CONFIG_VMAP_STACK=y.
This commit fixes the bug.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=201021
Reference: https://forum.manjaro.org/t/firewire-m-audio-410-driver-wont-load-firmware/51165
Fixes: a2b2a7798fb6('ALSA: bebob: Send a cue to load firmware for M-Audio Firewire series')
Cc: <stable@vger.kernel.org> # v3.16+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/firewire/bebob/bebob_maudio.c | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
--- a/sound/firewire/bebob/bebob_maudio.c
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -96,17 +96,13 @@ int snd_bebob_maudio_load_firmware(struc
struct fw_device *device = fw_parent_device(unit);
int err, rcode;
u64 date;
- __le32 cues[3] = {
- cpu_to_le32(MAUDIO_BOOTLOADER_CUE1),
- cpu_to_le32(MAUDIO_BOOTLOADER_CUE2),
- cpu_to_le32(MAUDIO_BOOTLOADER_CUE3)
- };
+ __le32 *cues;
/* check date of software used to build */
err = snd_bebob_read_block(unit, INFO_OFFSET_SW_DATE,
&date, sizeof(u64));
if (err < 0)
- goto end;
+ return err;
/*
* firmware version 5058 or later has date later than "20070401", but
* 'date' is not null-terminated.
@@ -114,20 +110,28 @@ int snd_bebob_maudio_load_firmware(struc
if (date < 0x3230303730343031LL) {
dev_err(&unit->device,
"Use firmware version 5058 or later\n");
- err = -ENOSYS;
- goto end;
+ return -ENXIO;
}
+ cues = kmalloc_array(3, sizeof(*cues), GFP_KERNEL);
+ if (!cues)
+ return -ENOMEM;
+
+ cues[0] = cpu_to_le32(MAUDIO_BOOTLOADER_CUE1);
+ cues[1] = cpu_to_le32(MAUDIO_BOOTLOADER_CUE2);
+ cues[2] = cpu_to_le32(MAUDIO_BOOTLOADER_CUE3);
+
rcode = fw_run_transaction(device->card, TCODE_WRITE_BLOCK_REQUEST,
device->node_id, device->generation,
device->max_speed, BEBOB_ADDR_REG_REQ,
- cues, sizeof(cues));
+ cues, 3 * sizeof(*cues));
+ kfree(cues);
if (rcode != RCODE_COMPLETE) {
dev_err(&unit->device,
"Failed to send a cue to load firmware\n");
err = -EIO;
}
-end:
+
return err;
}
next prev parent reply other threads:[~2018-09-27 9:17 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-27 9:03 [PATCH 4.14 00/64] 4.14.73-stable review Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 01/64] gso_segment: Reset skb->mac_len after modifying network header Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 02/64] ipv6: fix possible use-after-free in ip6_xmit() Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 03/64] net/appletalk: fix minor pointer leak to userspace in SIOCFINDIPDDPRT Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 04/64] net: hp100: fix always-true check for link up state Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 05/64] pppoe: fix reception of frames with no mac header Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 06/64] qmi_wwan: set DTR for modems in forced USB2 mode Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 07/64] udp4: fix IP_CMSG_CHECKSUM for connected sockets Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 08/64] neighbour: confirm neigh entries when ARP packet is received Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 09/64] udp6: add missing checks on edumux packet processing Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 10/64] net/sched: act_sample: fix NULL dereference in the data path Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 11/64] tls: dont copy the key out of tls12_crypto_info_aes_gcm_128 Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 12/64] tls: zero the crypto information from tls_context before freeing Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 13/64] tls: clear key material from kernel memory when do_tls_setsockopt_conf fails Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 14/64] NFC: Fix possible memory corruption when handling SHDLC I-Frame commands Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 15/64] NFC: Fix the number of pipes Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 16/64] ASoC: cs4265: fix MMTLR Data switch control Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 17/64] ASoC: rsnd: fixup not to call clk_get/set under non-atomic Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 18/64] ALSA: bebob: fix memory leak for M-Audio FW1814 and ProjectMix I/O at error path Greg Kroah-Hartman
2018-09-27 9:03 ` Greg Kroah-Hartman [this message]
2018-09-27 9:03 ` [PATCH 4.14 20/64] ALSA: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 21/64] ALSA: fireface: fix memory leak in ff400_switch_fetching_mode() Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 22/64] ALSA: firewire-digi00x: fix memory leak of private data Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 23/64] ALSA: firewire-tascam: " Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 24/64] ALSA: fireworks: fix memory leak of response buffer at error path Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 25/64] ALSA: oxfw: fix memory leak for model-dependent data " Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 26/64] ALSA: oxfw: fix memory leak of discovered stream formats " Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 27/64] ALSA: oxfw: fix memory leak of private data Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 28/64] platform/x86: alienware-wmi: Correct a memory leak Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 29/64] xen/netfront: dont bug in case of too many frags Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 30/64] xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 31/64] spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 32/64] Revert "PCI: Add ACS quirk for Intel 300 series" Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 33/64] ring-buffer: Allow for rescheduling when removing pages Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 34/64] mm: shmem.c: Correctly annotate new inodes for lockdep Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 35/64] Revert "rpmsg: core: add support to power domains for devices" Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 36/64] Revert "uapi/linux/keyctl.h: dont use C++ reserved keyword as a struct member name" Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 37/64] scsi: target: iscsi: Use hex2bin instead of a re-implementation Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 38/64] scsi: target: iscsi: Use bin2hex " Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 39/64] Revert "ubifs: xattr: Dont operate on deleted inodes" Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 40/64] ocfs2: fix ocfs2 read block panic Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 41/64] drm/nouveau: Fix deadlocks in nouveau_connector_detect() Greg Kroah-Hartman
2018-09-27 9:03 ` [PATCH 4.14 42/64] drm/nouveau/drm/nouveau: Dont forget to cancel hpd_work on suspend/unload Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 43/64] drm/nouveau/drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 44/64] drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect() Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 45/64] drm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 46/64] drm/vc4: Fix the "no scaling" case on multi-planar YUV formats Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 47/64] drm: udl: Destroy framebuffer only if it was initialized Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 48/64] drm/amdgpu: add new polaris pci id Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 49/64] drm/atomic: Use drm_drv_uses_atomic_modeset() for debugfs creation Greg Kroah-Hartman
2018-09-27 18:00 ` Jon Hunter
2018-09-27 19:01 ` Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 50/64] tty: vt_ioctl: fix potential Spectre v1 Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 51/64] ext4: check to make sure the rename(2)s destination is not freed Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 52/64] ext4: avoid divide by zero fault when deleting corrupted inline directories Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 53/64] ext4: avoid arithemetic overflow that can trigger a BUG Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 54/64] ext4: recalucate superblock checksum after updating free blocks/inodes Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 55/64] ext4: fix online resizes handling of a too-small final block group Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 56/64] ext4: fix online resizing for bigalloc file systems with a 1k block size Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 57/64] ext4: dont mark mmp buffer head dirty Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 58/64] ext4: show test_dummy_encryption mount option in /proc/mounts Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 59/64] sched/fair: Fix vruntime_normalized() for remote non-migration wakeup Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 60/64] PCI: aardvark: Size bridges before resources allocation Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 61/64] vmw_balloon: include asm/io.h Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 62/64] iw_cxgb4: only allow 1 flush on user qps Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 63/64] tick/nohz: Prevent bogus softirq pending warning Greg Kroah-Hartman
2018-09-27 9:04 ` [PATCH 4.14 64/64] crypto: x86/aegis,morus - Do not require OSXSAVE for SSE2 Greg Kroah-Hartman
2018-09-27 11:30 ` Sudip Mukherjee
2018-09-27 12:40 ` Greg Kroah-Hartman
2018-09-27 19:00 ` [PATCH 4.14 00/64] 4.14.73-stable review Nathan Chancellor
2018-09-27 19:20 ` Greg Kroah-Hartman
2018-09-27 19:57 ` Rafael David Tinoco
2018-09-27 20:10 ` Shuah Khan
2018-09-27 20:56 ` Sudip Mukherjee
2018-09-27 21:45 ` Sudip Mukherjee
2018-09-28 4:46 ` Greg Kroah-Hartman
2018-09-27 21:56 ` Guenter Roeck
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