diff options
| author | Marton Balint <cus@passwd.hu> | 2022-06-27 21:52:35 +0200 |
|---|---|---|
| committer | Marton Balint <cus@passwd.hu> | 2022-07-06 23:37:29 +0200 |
| commit | 03d81a044ad587ea83567f75dc36bc3d64278199 (patch) | |
| tree | d4a25d122d274c279e817a1c5c7586d045e52849 | |
| parent | 7acc1241219f3b2810fe496c2cc34d79964c6d8f (diff) | |
| download | ffmpeg-03d81a044ad587ea83567f75dc36bc3d64278199.tar.gz | |
avformat/mov: disallow a zero sample size in trun atoms
In order to not generate 0 sized packets or create a huge index table
needlessly.
Fixes: Timeout
Fixes: 43717/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5206008287330304
Fixes: 45738/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6142535657979904
Signed-off-by: Marton Balint <cus@passwd.hu>
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 5d8b24368a..6eb631d45b 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -5179,6 +5179,8 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) distance++; if (av_sat_add64(dts, sample_duration) != dts + (uint64_t)sample_duration) return AVERROR_INVALIDDATA; + if (!sample_size) + return AVERROR_INVALIDDATA; dts += sample_duration; offset += sample_size; sc->data_size += sample_size; |