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2df8220cc5
linux/sound/core
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Takashi Iwai c3afa2a402 ALSA: core: Fix double-free at snd_card_new() 
During the code change to add the support for devres-managed card
instance, we put an explicit kfree(card) call at the error path in
snd_card_new().  This is needed for the early error path before the
card is initialized with the device, but is rather superfluous and
causes a double-free at the error path after the card instance is
initialized, as the destructor of the card object already contains a
kfree() call.

This patch fixes the double-free situation by removing the superfluous
kfree().  Meanwhile we need to call kfree() explicitly for the early
error path, so it's added there instead.

Fixes: e8ad415b7a ("ALSA: core: Add managed card creation")
Reported-by: Rondreis <linhaoguo86@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAB7eexL1zBnB636hwS27d-LdPYZ_R1-5fJS_h=ZbCWYU=UPWJg@mail.gmail.com
Link: https://lore.kernel.org/r/20220919123516.28222-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-09-19 14:36:06 +02:00
..
oss ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC 2022-09-05 15:01:22 +02:00
seq ALSA: seq: Fix data-race at module auto-loading 2022-08-24 07:59:06 +02:00
compress_offload.c ALSA: compress: Fix kernel doc warnings 2022-07-13 13:42:36 +02:00
control_compat.c x86: Remove toolchain check for X32 ABI capability 2022-03-15 10:32:48 +01:00
control_led.c ALSA: control-led: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:43 +02:00
control.c ALSA: control: Re-order bounds checking in get_ctl_id_hash() 2022-08-26 17:17:22 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
hwdep.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
info.c ALSA: info: Fix llseek return value when using callback 2022-08-17 15:13:30 +02:00
init.c ALSA: core: Fix double-free at snd_card_new() 2022-09-19 14:36:06 +02:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: jack: Access input_dev under mutex 2022-04-12 12:19:05 +02:00
Kconfig ALSA: control: Add input validation 2022-06-15 07:45:28 +02:00
Makefile m68k: coldfire: drop ISA_DMA_API support 2022-05-16 13:18:30 +10:00
memalloc_local.h ALSA: memalloc: Support for non-contiguous page allocation 2021-10-18 13:32:10 +02:00
memalloc.c ALSA: hda: Once again fix regression of page allocations with IOMMU 2022-09-06 11:03:48 +02:00
memory.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
misc.c ALSA: core: Add async signal helpers 2022-07-29 12:57:10 +02:00
pcm_compat.c x86: Remove toolchain check for X32 ABI capability 2022-03-15 10:32:48 +01:00
pcm_dmaengine.c ALSA: dmaengine: Fix missing return value comments for kernel docs 2022-07-13 13:42:35 +02:00
pcm_drm_eld.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: Use deferred fasync helper 2022-07-29 12:57:11 +02:00
pcm_local.h ALSA: memalloc: Support for non-contiguous page allocation 2021-10-18 13:32:10 +02:00
pcm_memory.c ALSA: pcm: Fix missing return value comments for kernel docs 2022-07-13 13:42:34 +02:00
pcm_misc.c ALSA: pcm: Test for "silence" field in struct "pcm_format_data" 2022-04-11 09:27:56 +02:00
pcm_native.c ALSA: pcm: Use deferred fasync helper 2022-07-29 12:57:11 +02:00
pcm_param_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_timer.c ALSA: timer: Constify snd_timer_hardware definitions 2020-01-03 09:24:07 +01:00
pcm_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm.c ALSA: pcm: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:46 +02:00
rawmidi_compat.c ALSA: rawmidi: Add framing mode 2021-05-17 16:02:44 +02:00
rawmidi.c ALSA: rawmidi: Take buffer refcount while draining output 2022-06-20 09:36:04 +02:00
seq_device.c ALSA: seq: Fix a potential UAF by wrong private_free call order 2021-09-30 14:13:22 +02:00
sound_oss.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
timer.c ALSA: timer: Use deferred fasync helper 2022-07-29 12:57:11 +02:00
vmaster.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00