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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-11 22:00:52 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-21 22:42:20 +0200 |
| commit | a3d790f1977ed6c326eb93bb61757297a7905dcc (patch) | |
| tree | 69cead0611c0fe4ab4a70c1f47622c598d522bf2 /libavformat/genh.c | |
| parent | 6007d5688c8b0efe5bb8489cca3a0e32b2001263 (diff) | |
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>
Diffstat (limited to 'libavformat/genh.c')
| -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 b1c20718f6..a25d4d625a 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->ch_layout.nb_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); |