ffmpeg | branch: release/4.2 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Nov 7 13:48:24 2021 +0100| [498a365d6d5d994e33e7d4d0d052d0905e749b23] | committer: Michael Niedermayer
avformat/mov: Check channels for mov_parse_stsd_audio() Fixes: signed integer overflow: -776522110086937600 * 16 cannot be represented in type 'long' Fixes: 40563/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6644829447127040 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 3a64a4c58255d45e05eff80c9464ad3bdc2d6463) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=498a365d6d5d994e33e7d4d0d052d0905e749b23 --- libavformat/mov.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index 0962eda774..6c72c52fdb 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2525,6 +2525,10 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries) av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate); return AVERROR_INVALIDDATA; } + if (st->codecpar->channels < 0) { + av_log(c->fc, AV_LOG_ERROR, "Invalid channels %d\n", st->codecpar->channels); + return AVERROR_INVALIDDATA; + } } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){ mov_parse_stsd_subtitle(c, pb, st, sc, size - (avio_tell(pb) - start_pos)); _______________________________________________ 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".
