![]() 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 #1 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> |
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.. | ||
adi | ||
amd | ||
atmel | ||
au1x | ||
bcm | ||
cirrus | ||
codecs | ||
dwc | ||
fsl | ||
generic | ||
hisilicon | ||
img | ||
intel | ||
jz4740 | ||
kirkwood | ||
mediatek | ||
meson | ||
mxs | ||
pxa | ||
qcom | ||
rockchip | ||
samsung | ||
sh | ||
sirf | ||
sof | ||
spear | ||
sprd | ||
sti | ||
stm | ||
sunxi | ||
tegra | ||
ti | ||
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 | ||
soc-devres.c | ||
soc-generic-dmaengine-pcm.c | ||
soc-jack.c | ||
soc-link.c | ||
soc-ops.c | ||
soc-pcm.c | ||
soc-topology.c | ||
soc-utils.c |