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| author | Takashi Iwai <tiwai@suse.de> | 2009-04-16 10:22:24 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-04-16 10:22:24 +0200 |
| commit | 18cb7109d3e83195b605ff2905981020e86f72ca (patch) | |
| tree | 7db1fa0c6ec8656a0a041bf9163b0656dd4a5765 /sound/pci/hda/hda_codec.c | |
| parent | 4e01f54bfd3f423db8fd6c91c4f0471f18aa0c50 (diff) | |
| download | linux-3.10-18cb7109d3e83195b605ff2905981020e86f72ca.tar.gz linux-3.10-18cb7109d3e83195b605ff2905981020e86f72ca.tar.bz2 linux-3.10-18cb7109d3e83195b605ff2905981020e86f72ca.zip | |
ALSA: hda - Check strcpy length
Check the length to copy via strlen() beforehand to avoid the stack
corruption, or use strlcpy() to be safe in HD-audio codes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 37f24ce7c3a..48f0cea7df1 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1431,6 +1431,8 @@ _snd_hda_find_mixer_ctl(struct hda_codec *codec, memset(&id, 0, sizeof(id)); id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; id.index = idx; + if (snd_BUG_ON(strlen(name) >= sizeof(id.name))) + return NULL; strcpy(id.name, name); return snd_ctl_find_id(codec->bus->card, &id); } |