ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sun Nov 1 20:20:02 2020 +0100| [a834af133b1fe8f29b4075808710ffd98abcac40] | committer: Michael Niedermayer
avformat/vqf: Check len for COMM chunks Fixes: Infinite loop Fixes: 26696/clusterfuzz-testcase-minimized-ffmpeg_dem_VQF_fuzzer-5648269168082944 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a834af133b1fe8f29b4075808710ffd98abcac40 --- libavformat/vqf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/vqf.c b/libavformat/vqf.c index 617a9706f4..449f4061f7 100644 --- a/libavformat/vqf.c +++ b/libavformat/vqf.c @@ -132,6 +132,9 @@ static int vqf_read_header(AVFormatContext *s) switch(chunk_tag){ case MKTAG('C','O','M','M'): + if (len < 12) + return AVERROR_INVALIDDATA; + avio_read(s->pb, comm_chunk, 12); st->codecpar->channels = AV_RB32(comm_chunk ) + 1; read_bitrate = AV_RB32(comm_chunk + 4); _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
