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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-01-10 23:10:47 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-01-13 16:09:26 +0100 |
| commit | 6da213ce208dabda3ce1d9e8d4fb72d337fa0b3f (patch) | |
| tree | 6e5dab5e0a34843c656ee29ae85ae36ee808eb47 | |
| parent | 763a808c96bb1d95afe5a4b04d2688de4e605216 (diff) | |
| download | ffmpeg-6da213ce208dabda3ce1d9e8d4fb72d337fa0b3f.tar.gz | |
avformat/matroskadec: check generic audio deinterleaver sub_packet_size against frame_size
Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f67d052a530_7517_nosound.mkv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a1ed1c2193483849df689b105bec0d26c2497999)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/matroskadec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index babf4b8060..cafc96edbb 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -2178,7 +2178,7 @@ static int matroska_parse_rm_audio(MatroskaDemuxContext *matroska, } memcpy(track->audio.buf + y*w, data, w); } else { - if (size < sps * w / sps || h<=0) { + if (size < sps * w / sps || h<=0 || w%sps) { av_log(matroska->ctx, AV_LOG_ERROR, "Corrupt generic RM-style audio packet size\n"); return AVERROR_INVALIDDATA; |