ASoC: soc-core: fix null-ptr-deref in snd_soc_del_component_unlocked()
[ Upstream commit
c448b7aa3e66042fc0f849d9a0fb90d1af82e948 ]
'component' is allocated in snd_soc_register_component(), but component->list
is not initalized, this may cause snd_soc_del_component_unlocked() deref null
ptr in the error handing case.
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:__list_del_entry_valid+0x81/0xf0
Call Trace:
snd_soc_del_component_unlocked+0x69/0x1b0 [snd_soc_core]
snd_soc_add_component.cold+0x54/0x6c [snd_soc_core]
snd_soc_register_component+0x70/0x90 [snd_soc_core]
devm_snd_soc_register_component+0x5e/0xd0 [snd_soc_core]
tas2552_probe+0x265/0x320 [snd_soc_tas2552]
? tas2552_component_probe+0x1e0/0x1e0 [snd_soc_tas2552]
i2c_device_probe+0xa31/0xbe0
Fix by adding INIT_LIST_HEAD() to snd_soc_component_initialize().
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211009065840.3196239-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>