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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-12-15 19:21:02 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-12-15 19:21:48 +0100 |
| commit | 45115315820a14d0c3f836adafb879475736e750 (patch) | |
| tree | b0466212d37a583f189a126b67b7a81ca722ad58 /libavformat/oggparsetheora.c | |
| parent | e838c9852e6f0a471a6917083e70e6fe238ba26a (diff) | |
| download | ffmpeg-45115315820a14d0c3f836adafb879475736e750.tar.gz | |
avformat/oggparsetheora: zero extradata padding area
Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f66fa0ac09d_9197_theora_a4_v6_k250_s0.ogg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/oggparsetheora.c')
| -rw-r--r-- | libavformat/oggparsetheora.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/oggparsetheora.c b/libavformat/oggparsetheora.c index 6458b97bc0..59df17efba 100644 --- a/libavformat/oggparsetheora.c +++ b/libavformat/oggparsetheora.c @@ -131,6 +131,8 @@ static int theora_header(AVFormatContext *s, int idx) st->codec->extradata_size = 0; return err; } + memset(st->codec->extradata + cds, 0, FF_INPUT_BUFFER_PADDING_SIZE); + cdp = st->codec->extradata + st->codec->extradata_size; *cdp++ = os->psize >> 8; *cdp++ = os->psize & 0xff; |