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| author | Dan Carpenter <error27@gmail.com> | 2010-08-27 22:02:15 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-08-28 11:59:33 +0200 |
| commit | 7a28826ac73d31a379d93785d8fbd24ab492b0bd (patch) | |
| tree | 3b3af569f7451b45941f9089494eb30487b7cb6f | |
| parent | 3182c8a72b31414e043184a97b0d5d3c0d590168 (diff) | |
| download | linux-stable-7a28826ac73d31a379d93785d8fbd24ab492b0bd.tar.gz linux-stable-7a28826ac73d31a379d93785d8fbd24ab492b0bd.tar.bz2 linux-stable-7a28826ac73d31a379d93785d8fbd24ab492b0bd.zip | |
ALSA: pcm: add more format names
There were some new formats added in commit 15c0cee6c809 "ALSA: pcm:
Define G723 3-bit and 5-bit formats". That commit increased
SNDRV_PCM_FORMAT_LAST as well. My concern is that there are a couple
places which do:
for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) {
if (dummy->pcm_hw.formats & (1ULL << i))
snd_iprintf(buffer, " %s", snd_pcm_format_name(i));
}
I haven't tested these but it looks like if "i" were equal to
SNDRV_PCM_FORMAT_G723_24 or higher then we might read past the end of
the array.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/core/pcm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c index cbe815dfbdc8..204af48c5cc1 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -203,10 +203,16 @@ static char *snd_pcm_format_names[] = { FORMAT(S18_3BE), FORMAT(U18_3LE), FORMAT(U18_3BE), + FORMAT(G723_24), + FORMAT(G723_24_1B), + FORMAT(G723_40), + FORMAT(G723_40_1B), }; const char *snd_pcm_format_name(snd_pcm_format_t format) { + if (format >= ARRAY_SIZE(snd_pcm_format_names)) + return "Unknown"; return snd_pcm_format_names[format]; } EXPORT_SYMBOL_GPL(snd_pcm_format_name); |