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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-11 21:52:55 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-21 22:42:20 +0200 |
| commit | 6007d5688c8b0efe5bb8489cca3a0e32b2001263 (patch) | |
| tree | 64de55ab25429bf68a3c635453ad19d709b33af8 | |
| parent | 83e1a1de8833845224948e5d002355c03dd117d5 (diff) | |
| download | ffmpeg-6007d5688c8b0efe5bb8489cca3a0e32b2001263.tar.gz | |
avformat/demux: Use unsigned to check duration vs duration_text
Fixes: signed integer overflow: 9223371898743775808 - -138111000000 cannot be represented in type 'long'
Fixes: 46245/clusterfuzz-testcase-minimized-ffmpeg_dem_OGG_fuzzer-5075129786302464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/demux.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/demux.c b/libavformat/demux.c index ef189d9d8e..ad7b5dbf83 100644 --- a/libavformat/demux.c +++ b/libavformat/demux.c @@ -1612,7 +1612,7 @@ static void update_stream_timings(AVFormatContext *ic) else if (end_time < end_time_text) av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream endtime %f\n", end_time_text / (float)AV_TIME_BASE); - if (duration == INT64_MIN || (duration < duration_text && duration_text - duration < AV_TIME_BASE)) + if (duration == INT64_MIN || (duration < duration_text && (uint64_t)duration_text - duration < AV_TIME_BASE)) duration = duration_text; else if (duration < duration_text) av_log(ic, AV_LOG_VERBOSE, "Ignoring outlier non primary stream duration %f\n", duration_text / (float)AV_TIME_BASE); |