1. ffmpeg
  2. Commit 2d825946a3970e566fa41829eb758f94169c4a0e
Browse code

avformat/gdv: Check fps

Fixes: Division by 0
Fixes: ffmpeg_zero_division.bin

Found-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 38381400fca45d1ae6e7604335b507b7dc70a903)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Michael Niedermayer authored on 2019/03/05 08:48:18
Showing 1 changed files
libavformat/gdv.c
History View file @ 2d82594
... ... 
@@ -86,6 +86,9 @@ static int gdv_read_header(AVFormatContext *ctx)
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     vst->nb_frames         = avio_rl16(pb);
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     fps = avio_rl16(pb);
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+    if (!fps)
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+        return AVERROR_INVALIDDATA;
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+
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     snd_flags = avio_rl16(pb);
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     if (snd_flags & 1) {
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         ast = avformat_new_stream(ctx, 0);