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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-11 22:00:52 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-10-09 22:15:33 +0200 |
| commit | ffea4ba051d8aed87ed2897515defa1da7228e9e (patch) | |
| tree | 9f77b6124508b9263ff2addbc9f4d1109faeb8cf | |
| parent | dcf25ec8859f39bb7f94b141ad5e323c58aa28c6 (diff) | |
| download | ffmpeg-ffea4ba051d8aed87ed2897515defa1da7228e9e.tar.gz | |
avformat/genh: Check sample rate
Fixes: signed integer overflow: -2515507630940093440 * 4 cannot be represented in type 'long'
Fixes: 46318/clusterfuzz-testcase-minimized-ffmpeg_dem_GENH_fuzzer-5009637474172928
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>
(cherry picked from commit a3d790f1977ed6c326eb93bb61757297a7905dcc)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/genh.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/genh.c b/libavformat/genh.c index cbdd53324b..c7d7b371f0 100644 --- a/libavformat/genh.c +++ b/libavformat/genh.c @@ -67,6 +67,9 @@ static int genh_read_header(AVFormatContext *s) return AVERROR_INVALIDDATA; st->codecpar->block_align = align * st->codecpar->channels; st->codecpar->sample_rate = avio_rl32(s->pb); + if (st->codecpar->sample_rate < 0) + return AVERROR_INVALIDDATA; + avio_skip(s->pb, 4); st->duration = avio_rl32(s->pb); |