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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-02-25 23:11:40 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-03-10 19:49:04 +0100 |
| commit | b2d7cbc378fa276d62fd676c037b9df59fc319a0 (patch) | |
| tree | ad8583836ad9b177bfbb4ef0d4c54f0202f643be /libavformat | |
| parent | 5db09574dfd40d3e15db9336a34398405a1c601b (diff) | |
| download | ffmpeg-b2d7cbc378fa276d62fd676c037b9df59fc319a0.tar.gz | |
avformat/concatdec: Check in and outpoints to be to produce a positive representable duration
Fixes: signed integer overflow: -93000000 - 9223372036839000000 cannot be represented in type 'long'
Fixes: 64546/clusterfuzz-testcase-minimized-ffmpeg_dem_CONCAT_fuzzer-5110813828186112
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/concatdec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c index 2abe479fb0..ac541a592f 100644 --- a/libavformat/concatdec.c +++ b/libavformat/concatdec.c @@ -638,6 +638,12 @@ static int concat_parse_script(AVFormatContext *avf) } } + if (file->inpoint != AV_NOPTS_VALUE && file->outpoint != AV_NOPTS_VALUE) { + if (file->inpoint > file->outpoint || + file->outpoint - (uint64_t)file->inpoint > INT64_MAX) + ret = AVERROR_INVALIDDATA; + } + fail: for (arg = 0; arg < MAX_ARGS; arg++) av_freep(&arg_str[arg]); |