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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-16 22:05:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:53:29 +0200 |
| commit | 6202f716dc30c966e1e6fc2be6ac2a1c4170fc88 (patch) | |
| tree | a27aaa9ee4b569e3be5fdf1dbc34977e955bbc7d | |
| parent | 2f0ae564600475eed5342e3de7cc07822c60d623 (diff) | |
| download | ffmpeg-6202f716dc30c966e1e6fc2be6ac2a1c4170fc88.tar.gz | |
avformat/utils: Check dts in update_initial_timestamps() more
Fixes: signed integer overflow: -9223372036853488158 - 90000000 cannot be represented in type 'long long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_MPSUB_fuzzer-6696625298866176
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 29851cb840c176d514573914799ca6c95f3f4e8e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/utils.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index 4752553d80..c237b1f0da 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -1138,6 +1138,7 @@ static void update_initial_timestamps(AVFormatContext *s, int stream_index, dts == AV_NOPTS_VALUE || st->cur_dts == AV_NOPTS_VALUE || st->cur_dts < INT_MIN + RELATIVE_TS_BASE || + dts < INT_MIN + (st->cur_dts - RELATIVE_TS_BASE) || is_relative(dts)) return; |