ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Fri Mar 25 22:47:26 2022 +0100| [9274fb25324cc7676d3464b5248739166926c6a7] | committer: Michael Niedermayer
avformat/mov: Non overflowing ambisonic order check Fixes: signed integer overflow: 536870913 * 536870913 cannot be represented in type 'int' Fixes: 45862/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-4730373768085504 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9274fb25324cc7676d3464b5248739166926c6a7 --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index f8248ab65b..3ec0ea2361 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -7381,7 +7381,7 @@ static int mov_read_SA3D(MOVContext *c, AVIOContext *pb, MOVAtom atom) } channel_count = avio_rb32(pb); - if (channel_count != (ambisonic_order + 1) * (ambisonic_order + 1)) { + if (ambisonic_order < 0 || channel_count != (ambisonic_order + 1LL) * (ambisonic_order + 1LL)) { av_log(c->fc, AV_LOG_ERROR, "Invalid number of channels (%d / %d)\n", channel_count, ambisonic_order); _______________________________________________ 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".
