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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-12 22:33:06 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-12 23:00:07 +0200 |
| commit | 578633fc1ac8c02a36a706bd71f775550412d1e1 (patch) | |
| tree | 85aca549944b6b129203ea1023e8a28092ddd960 /libavformat | |
| parent | fc99d595531c0742aae8fe088fc5aad519035f2a (diff) | |
| download | ffmpeg-578633fc1ac8c02a36a706bd71f775550412d1e1.tar.gz | |
avformat/utils: Use 64bit earlier in r_frame_rate check
Fixes: signed integer overflow: 1406796319 * 2 cannot be represented in type 'int'
Fixes: 32777/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5632576913014784
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/utils.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index 9228313a00..492e08562e 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -3988,7 +3988,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options) if (!st->r_frame_rate.num) { if ( avctx->time_base.den * (int64_t) st->time_base.num - <= avctx->time_base.num * avctx->ticks_per_frame * (uint64_t) st->time_base.den) { + <= avctx->time_base.num * (uint64_t)avctx->ticks_per_frame * st->time_base.den) { av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, avctx->time_base.den, (int64_t)avctx->time_base.num * avctx->ticks_per_frame, INT_MAX); } else { |