lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ALSA: hda - Always check array bounds in alc_get_line_out_pfx

Browse Source 
Even when CONFIG_SND_DEBUG is not enabled, we don't want to
return an arbitrary memory location when the channel count is
larger than we expected.

Cc: stable@kernel.org
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson
2012-10-17 12:43:44 +02:00
committed by Takashi Iwai
parent 1f04661fde
commit 71aa5ebe36
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
sound/pci/hda/patch_realtek.c
View File

@@ -2598,8 +2598,10 @@ static const char *alc_get_line_out_pfx(struct alc_spec *spec, int ch,
return "PCM"; return "PCM";
break; break;
} }
if (snd_BUG_ON(ch >= ARRAY_SIZE(channel_name))) if (ch >= ARRAY_SIZE(channel_name)) {
snd_BUG();
return "PCM"; return "PCM";
}
return channel_name[ch]; return channel_name[ch];
} }