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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-11 22:00:52 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-08-31 21:35:14 +0200 |
| commit | 0af520417b56baa7974cb91bddd8ded069a3198b (patch) | |
| tree | 7b49be0d7ab0d01dc964653669d701bfc499d4e3 /libavformat | |
| parent | 14d8814edca862895fbf64187c32f2ac61afde90 (diff) | |
| download | ffmpeg-0af520417b56baa7974cb91bddd8ded069a3198b.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>
Diffstat (limited to 'libavformat')
| -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 f9b222d8cd..eae23e59f2 100644 --- a/libavformat/genh.c +++ b/libavformat/genh.c @@ -68,6 +68,9 @@ 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); |