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| author | David Henningsson <david.henningsson@canonical.com> | 2012-10-17 12:43:44 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-10-17 13:00:18 +0200 |
| commit | 71aa5ebe36a4e936eff281b375a4707b6a8320f2 (patch) | |
| tree | 9542a61abab309a883af0a6fcabfc6544d3afc75 /sound | |
| parent | 1f04661fde9deda4a2cd5845258715a22d8af197 (diff) | |
| download | linux-71aa5ebe36a4e936eff281b375a4707b6a8320f2.tar.gz linux-71aa5ebe36a4e936eff281b375a4707b6a8320f2.tar.bz2 linux-71aa5ebe36a4e936eff281b375a4707b6a8320f2.zip | |
ALSA: hda - Always check array bounds in alc_get_line_out_pfx
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>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/patch_realtek.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 8253b4eeb6a1..48d9d609f89b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -2598,8 +2598,10 @@ static const char *alc_get_line_out_pfx(struct alc_spec *spec, int ch, return "PCM"; break; } - if (snd_BUG_ON(ch >= ARRAY_SIZE(channel_name))) + if (ch >= ARRAY_SIZE(channel_name)) { + snd_BUG(); return "PCM"; + } return channel_name[ch]; } |