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avformat/mov: Limit nb_chapter_tracks to input size
Fixes: Timeout (15k loop iterations instead of 400m) Fixes: 31368/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6601583174483968 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 299a56c9006b2eb8807c3e3efefb91a78fe6b3b2) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -4304,6 +4304,8 @@ static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
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for (i = 0; i < num && !pb->eof_reached; i++)
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c->chapter_tracks[i] = avio_rb32(pb);
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c->nb_chapter_tracks = i;
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return 0;
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}
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