mirror of https://git.ffmpeg.org/ffmpeg.git
avformat/mov: Avoid overflow in end computation in mov_read_custom()
Fixes: signed integer overflow: 18 + 9223372036854775799 cannot be represented in type 'long' Fixes: 26731/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5696846019952640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -4414,7 +4414,7 @@ static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
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static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
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{
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int64_t end = avio_tell(pb) + atom.size;
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int64_t end = av_sat_add64(avio_tell(pb), atom.size);
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uint8_t *key = NULL, *val = NULL, *mean = NULL;
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int i;
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int ret = 0;
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