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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-04-16 18:26:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-04-16 18:36:40 +0200 |
| commit | 4fa706a4a64f9e06b08c1a42a62893ff2f7de82f (patch) | |
| tree | db07db9a6d215e7051552641d228a21e087c3537 /libavcodec/svq3.c | |
| parent | efe1ba7201b3bb609d3a41091e15e875137f3f32 (diff) | |
| download | ffmpeg-4fa706a4a64f9e06b08c1a42a62893ff2f7de82f.tar.gz | |
svq3: check the watermark height.
Fixes division by 0
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/svq3.c')
| -rw-r--r-- | libavcodec/svq3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index 31187713da..c35138b8bc 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -906,7 +906,7 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx) int offset = (get_bits_count(&gb)+7)>>3; uint8_t *buf; - if ((uint64_t)watermark_width*4 > UINT_MAX/watermark_height) + if (watermark_height<=0 || (uint64_t)watermark_width*4 > UINT_MAX/watermark_height) return -1; buf = av_malloc(buf_len); |