ffmpeg | branch: master | Michael Niedermayer <michael@niedermayer.cc> | Fri Apr 23 19:39:16 2021 +0200| [5e38eff284637e9f7c3c25d020df549ca6667e40] | committer: Michael Niedermayer avformat/dsfdec: Change order of operations in bitrate computation Fixes: signed integer overflow: 538976288 * 67372036 cannot be represented in type 'int' Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_DSF_fuzzer-6751696819716096 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5e38eff284637e9f7c...

libavformat/dsfdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/dsfdec.c b/libavformat/dsfdec.c index 02ee4c1231..c872f98cc2 100644 --- a/libavformat/dsfdec.c +++ b/libavformat/dsfdec.c @@ -130,7 +130,7 @@ static int dsf_read_header(AVFormatContext *s) return AVERROR_INVALIDDATA; } st->codecpar->block_align *= st->codecpar->channels; - st->codecpar->bit_rate = st->codecpar->channels * st->codecpar->sample_rate * 8LL; + st->codecpar->bit_rate = st->codecpar->channels * 8LL * st->codecpar->sample_rate; avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); avio_skip(pb, 4);