ffmpeg | branch: release/3.4 | Michael Niedermayer <mich...@niedermayer.cc> | Mon Oct 4 23:54:46 2021 +0200| [7a1c59e4558673eddbdb639a427709a9d0383608] | committer: Michael Niedermayer
avformat/wavdec: Check smv_block_size Fixes: Timeout Fixes: 39554/clusterfuzz-testcase-minimized-ffmpeg_dem_WAV_fuzzer-4915221701984256 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 849138f476f4b08656681bfc3aec5beac47777fb) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7a1c59e4558673eddbdb639a427709a9d0383608 --- libavformat/wavdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 56aef289e9..b7c5f22a3a 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -480,6 +480,8 @@ static int wav_read_header(AVFormatContext *s) wav->smv_data_ofs = avio_tell(pb) + (size - 5) * 3; avio_rl24(pb); wav->smv_block_size = avio_rl24(pb); + if (!wav->smv_block_size) + return AVERROR_INVALIDDATA; avpriv_set_pts_info(vst, 32, 1, avio_rl24(pb)); vst->duration = avio_rl24(pb); avio_rl24(pb); _______________________________________________ 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".
