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| author | Michael Niedermayer <michael@niedermayer.cc> | 2025-07-13 03:10:27 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2025-07-21 01:27:23 +0200 |
| commit | 8cdb47e47a7a53a3c635a71bf712d79119eb86b4 (patch) | |
| tree | 532cc83c2b6e4d98f6e442e156c2d496ee04a08f /libavformat/concatdec.c | |
| parent | 749aaf27448b686b029a2ffa4e5d23f878e2f703 (diff) | |
| download | ffmpeg-8cdb47e47a7a53a3c635a71bf712d79119eb86b4.tar.gz | |
avformat/concatdec: Clip duration in one more case in get_best_effort_duration()
Fixes: signed integer overflow: 40000 - -9223372036854770000 cannot be represented in type 'long'
Fixes: 427262541/clusterfuzz-testcase-minimized-ffmpeg_dem_CONCAT_fuzzer-4831506940100608
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/concatdec.c')
| -rw-r--r-- | libavformat/concatdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c index fe65d0c768..e0c2c87248 100644 --- a/libavformat/concatdec.c +++ b/libavformat/concatdec.c @@ -326,7 +326,7 @@ static int64_t get_best_effort_duration(ConcatFile *file, AVFormatContext *avf) if (file->outpoint != AV_NOPTS_VALUE) return av_sat_sub64(file->outpoint, file->file_inpoint); if (avf->duration > 0) - return avf->duration - (file->file_inpoint - file->file_start_time); + return av_sat_sub64(avf->duration, file->file_inpoint - file->file_start_time); if (file->next_dts != AV_NOPTS_VALUE) return file->next_dts - file->file_inpoint; return AV_NOPTS_VALUE; |