ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()
authorSimon Trimmer <simont@opensource.cirrus.com>
Fri, 31 May 2024 12:08:20 +0000 (13:08 +0100)
committerTakashi Iwai <tiwai@suse.de>
Fri, 31 May 2024 12:38:41 +0000 (14:38 +0200)
commit6386682cdc8b41319c92fbbe421953e33a28840c
treed095ffb71fdd2ad0a928b40d69a25d5e0b533a0b
parentd339131bf02d4ed918415574082caf5e8af6e664
ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()

The cs35l41_hda_unbind() function clears the hda_component entry
matching it's index and then dereferences the codec pointer held in the
first element of the hda_component array, this is an issue when the
device index was 0.

Instead use the codec pointer stashed in the cs35l41_hda structure as it
will still be valid.

Fixes: 7cf5ce66dfda ("ALSA: hda: cs35l41: Add device_link between HDA and cs35l41_hda")
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240531120820.35367-1-simont@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/cs35l41_hda.c