kernel_samsung_a53x/sound/soc
Arseniy Krasnov aed46d91fa ASoC: meson: axg-card: fix 'use-after-free'
commit 4f9a71435953f941969a4f017e2357db62d85a86 upstream.

Buffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()',
so move 'pad' pointer initialization after this function when memory is
already reallocated.

Kasan bug report:

==================================================================
BUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc
Read of size 8 at addr ffff000000e8b260 by task modprobe/356

CPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel 
Call trace:
 dump_backtrace+0x94/0xec
 show_stack+0x18/0x24
 dump_stack_lvl+0x78/0x90
 print_report+0xfc/0x5c0
 kasan_report+0xb8/0xfc
 __asan_load8+0x9c/0xb8
 axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card]
 meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils]
 platform_probe+0x8c/0xf4
 really_probe+0x110/0x39c
 __driver_probe_device+0xb8/0x18c
 driver_probe_device+0x108/0x1d8
 __driver_attach+0xd0/0x25c
 bus_for_each_dev+0xe0/0x154
 driver_attach+0x34/0x44
 bus_add_driver+0x134/0x294
 driver_register+0xa8/0x1e8
 __platform_driver_register+0x44/0x54
 axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card]
 do_one_initcall+0xdc/0x25c
 do_init_module+0x10c/0x334
 load_module+0x24c4/0x26cc
 init_module_from_file+0xd4/0x128
 __arm64_sys_finit_module+0x1f4/0x41c
 invoke_syscall+0x60/0x188
 el0_svc_common.constprop.0+0x78/0x13c
 do_el0_svc+0x30/0x40
 el0_svc+0x38/0x78
 el0t_64_sync_handler+0x100/0x12c
 el0t_64_sync+0x190/0x194

Fixes: 7864a79f37b5 ("ASoC: meson: add axg sound card support")
Cc: Stable@vger.kernel.org
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patch.msgid.link/20240911142425.598631-1-avkrasnov@salutedevices.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:21:13 +01:00
..
adi
amd
atmel Revert "ASoC: atmel: Remove system clock tree configuration for at91sam9g20ek" 2024-11-18 12:12:45 +01:00
au1x
bcm
cirrus
codecs ASoC: codecs: wsa881x: Correct Soundwire ports mask 2024-11-23 23:20:26 +01:00
dwc
fsl ASoC: fsl-asoc-card: set priv->pdev before using it 2024-11-19 14:19:31 +01:00
generic ASoC: Fix 7/8 spaces indentation in Kconfig 2024-11-19 11:32:42 +01:00
hisilicon
img
intel ASoC: Intel: use soc_intel_is_byt_cr() only when IOSF_MBI is reachable 2024-11-23 23:20:18 +01:00
jz4740
kirkwood
mediatek
meson ASoC: meson: axg-card: fix 'use-after-free' 2024-11-23 23:21:13 +01:00
mxs
pxa ARM: pxa: spitz: use gpio descriptors for audio 2024-11-23 23:20:06 +01:00
qcom
rockchip
samsung
sh
sirf
sof
spear
sprd
sti
stm
sunxi ASoC: sunxi: sun4i-spdif: Add support for Allwinner H616 2024-11-18 22:25:33 +01:00
tegra ASoC: tegra: Fix DSPK 16-bit playback 2024-11-19 11:32:48 +01:00
ti ASoC: ti: omap-hdmi: Fix too long driver name 2024-11-19 14:19:48 +01:00
txx9
uniphier
ux500
xilinx
xtensa
zte
Kconfig
Makefile
soc-ac97.c
soc-acpi.c
soc-card.c
soc-component.c
soc-compress.c
soc-core.c
soc-dai.c
soc-dapm.c ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object 2024-11-23 23:20:59 +01:00
soc-devres.c
soc-generic-dmaengine-pcm.c ALSA: dmaengine: Synchronize dma channel after drop() 2024-11-19 14:19:48 +01:00
soc-jack.c
soc-link.c
soc-ops.c ASoC: ops: Fix wraparound for mask in snd_soc_get_volsw 2024-11-19 09:23:10 +01:00
soc-pcm.c
soc-topology.c ASoC: topology: Properly initialize soc_enum values 2024-11-23 23:21:04 +01:00
soc-utils.c