ALSA: hda - add bounds checking for the codec command fields

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A recent bug involves passing auto detected >0x7f NID to codec command,
creating an invalid codec addr field, and finally lead to cmd timeout
and fall back into single command mode. Jaroslav fixed that bug in
alc880_parse_auto_config().

It would be safer to further check the bounds of all cmd fields.

Cc: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Wu Fengguang 2009-07-17 16:49:19 +08:00 • committed by Takashi Iwai

parent 9176b672c2

commit 6430aeeb30

1 changed files with 11 additions and 1 deletions

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12

sound/pci/hda/hda_codec.c

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