ffmpeg | branch: release/7.1 | Michael Niedermayer <mich...@niedermayer.cc> | Thu May 8 23:10:52 2025 +0200| [6fb3c736a60ee1323957124302538867303c490c] | committer: Michael Niedermayer
avformat/iff: Check nb_channels == 0 in MHDR Fixes: division by 0 Fixes: 395163171/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-542604339373670 Reviewed-by: Peter Ross <pr...@xvid.org> 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 ce1fd73d637a34551161fd8054ce3d410631982c) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6fb3c736a60ee1323957124302538867303c490c --- libavformat/iff.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/iff.c b/libavformat/iff.c index 6b4503fdb3..3f75e135e5 100644 --- a/libavformat/iff.c +++ b/libavformat/iff.c @@ -497,6 +497,8 @@ static int iff_read_header(AVFormatContext *s) st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; else if (st->codecpar->ch_layout.nb_channels == 2) st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO; + else if (st->codecpar->ch_layout.nb_channels == 0) + return AVERROR_INVALIDDATA; break; case ID_ABIT: _______________________________________________ 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".
