robelin 5d13afd021 ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object ... commit b4a90b543d upstream. When using kernel with the following extra config, - CONFIG_KASAN=y - CONFIG_KASAN_GENERIC=y - CONFIG_KASAN_INLINE=y - CONFIG_KASAN_VMALLOC=y - CONFIG_FRAME_WARN=4096 kernel detects that snd_pcm_suspend_all() access a freed 'snd_soc_pcm_runtime' object when the system is suspended, which leads to a use-after-free bug: [ 52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270 [ 52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330 [ 52.047785] Call trace: [ 52.047787] dump_backtrace+0x0/0x3c0 [ 52.047794] show_stack+0x34/0x50 [ 52.047797] dump_stack_lvl+0x68/0x8c [ 52.047802] print_address_description.constprop.0+0x74/0x2c0 [ 52.047809] kasan_report+0x210/0x230 [ 52.047815] __asan_report_load1_noabort+0x3c/0x50 [ 52.047820] snd_pcm_suspend_all+0x1a8/0x270 [ 52.047824] snd_soc_suspend+0x19c/0x4e0 The snd_pcm_sync_stop() has a NULL check on 'substream->runtime' before making any access. So we need to always set 'substream->runtime' to NULL everytime we kfree() it. Fixes: a72706ed82 ("ASoC: codec2codec: remove ephemeral variables") Signed-off-by: robelin <robelin@nvidia.com> Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://patch.msgid.link/20240823144342.4123814-2-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-09-12 11:11:24 +02:00
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ac97
aoa
arm
atmel
core	ALSA: seq: ump: Explicitly reset RPN with Null RPN	2024-09-08 07:54:31 +02:00
drivers
firewire	Revert "ALSA: firewire-lib: operate for period elapse event in process context"	2024-08-11 12:47:25 +02:00
hda	ALSA/hda: intel-dsp-config: Document AVS as dsp_driver option	2024-06-27 13:49:05 +02:00
i2c
isa
mips
oss
parisc
pci	ALSA: hda/conexant: Mute speakers at suspend / shutdown	2024-09-08 07:54:30 +02:00
pcmcia
ppc
sh	ALSA: sh: aica: reorder cleanup operations to avoid UAF bugs	2024-04-03 15:28:59 +02:00
soc	ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object	2024-09-12 11:11:24 +02:00
sparc
spi
synth	ALSA: emux: improve patch ioctl data validation	2024-07-05 09:33:52 +02:00
usb	ALSA: usb-audio: Support Yamaha P-125 quirk entry	2024-08-29 17:33:11 +02:00
virtio
x86
xen
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c