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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-11-09 20:42:56 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-21 20:21:32 +0100 |
| commit | 7540d60bf687ae1f18927c5e6c3dbd317df9f35e (patch) | |
| tree | 835d03541a5fcf8177e30f23f09f1d5e811766be | |
| parent | 1b1dac2716d713dfd6949b7eb4a3c18c16f1faf6 (diff) | |
avformat/dhav: Break out of infinite dhav search loop
Fixes: Infinite loop
Fixes: 26922/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-5794549613723648
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/dhav.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/dhav.c b/libavformat/dhav.c index 6a6c235e65..526331ae4c 100644 --- a/libavformat/dhav.c +++ b/libavformat/dhav.c @@ -281,6 +281,8 @@ static int dhav_read_header(AVFormatContext *s) int seek_back; seek_back = avio_rl32(s->pb) + 8; + if (seek_back < 9) + break; dhav->last_good_pos = avio_tell(s->pb); avio_seek(s->pb, -seek_back, SEEK_CUR); } |