RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-25 00:32:31 +00:00
Code Issues Projects Releases Wiki Activity

avformat/oggparsedaala: Do not leave an invalid value in gpshift

Browse Source 
Fixes: undefined behavior
Fixes: 702974

Found-by: Thomas Guilbert <tguilbert@google.com>
Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-04-01 19:18:35 +02:00
parent 679a315424
commit 23ae3cc822
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
libavformat/oggparsedaala.c
View File

@ -126,6 +126,7 @@ static int daala_header(AVFormatContext *s, int idx)
if (hdr->gpshift >= 32) {
av_log(s, AV_LOG_ERROR, "Too large gpshift %d (>= 32).\n",
hdr->gpshift);
hdr->gpshift = 0;
return AVERROR_INVALIDDATA;
}
hdr->gpmask = (1U << hdr->gpshift) - 1;