ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Dec 23 20:43:47 2021 +0100| [f3a949dc4c6f01f43d502cbe2a7c06fe95114c79] | committer: Michael Niedermayer
avformat/mvdec: Check bytes_per_sample Fixes: division by zero Fixes: 42814/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-4787014237552640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Peter Ross <pr...@xvid.org> Reviewed-by: John-Paul Stewart <jpstew...@personalprojects.net> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f3a949dc4c6f01f43d502cbe2a7c06fe95114c79 --- libavformat/mvdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/mvdec.c b/libavformat/mvdec.c index 1a5012e507..ea955d2b11 100644 --- a/libavformat/mvdec.c +++ b/libavformat/mvdec.c @@ -366,6 +366,9 @@ static int mv_read_header(AVFormatContext *avctx) avpriv_request_sample(avctx, "Audio compression (format %i)", v); } + if (bytes_per_sample == 0) + return AVERROR_INVALIDDATA; + if (set_channels(avctx, ast, avio_rb32(pb)) < 0) return AVERROR_INVALIDDATA; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
