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authorMichael Niedermayer <michael@niedermayer.cc>2022-04-11 23:00:52 +0300
committerMichael Niedermayer <michael@niedermayer.cc>2022-06-14 17:53:24 +0300
commitbdadddf530ea1bef4b58261fd5652c5a20c8a5a8 (patch)
tree5f0573e0a3901ba0dc324322f7dd7291c1d39767 /libavformat
parentffb5153d396150341229165bfa0a3ce0c5ce43a0 (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> (cherry picked from commit a3d790f1977ed6c326eb93bb61757297a7905dcc) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/genh.c3
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);