mirror of https://git.ffmpeg.org/ffmpeg.git
smacker: fix integer overflow with pts_inc
Bug-Id: 1073 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Sean McGovern <gseanmcg@gmail.com>
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@ -117,6 +117,11 @@ static int smacker_read_header(AVFormatContext *s)
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smk->height = avio_rl32(pb);
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smk->frames = avio_rl32(pb);
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smk->pts_inc = (int32_t)avio_rl32(pb);
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if (smk->pts_inc > INT_MAX / 100) {
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av_log(s, AV_LOG_ERROR, "pts_inc %d is too large\n", smk->pts_inc);
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return AVERROR_INVALIDDATA;
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}
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smk->flags = avio_rl32(pb);
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if(smk->flags & SMACKER_FLAG_RING_FRAME)
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smk->frames++;
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