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ALSA: mixart: range checking proc file
authorDan Carpenter <error27@gmail.com>
Tue, 6 Apr 2010 16:31:26 +0000 (19:31 +0300)
committerTakashi Iwai <tiwai@suse.de>
Tue, 6 Apr 2010 16:52:39 +0000 (18:52 +0200)
commitb0cc58a25d04160d39a80e436847eaa2fbc5aa09
treea20f259f6d2081e40ac979db8daad6b71ff7342ctree | snapshot
parenta0fd4345f928d72a56e27b23e4cd28c94bf36be5commit | diff
ALSA: mixart: range checking proc file

The original code doesn't take into consideration that the value of
MIXART_BA0_SIZE - pos can be less than zero which would lead to a large
unsigned value for "count".

Also I moved the check that read size is a multiple of 4 bytes below
the code that adjusts "count".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: <stable@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/mixart/mixart.c diff | blob | history
Full containers within linux kernel