ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sat Nov 14 22:27:00 2020 +0100| [a108a4d809f8345303e1aa7578d608a726c53686] | committer: Michael Niedermayer
avcodec/mobiclip: Check mv against INT_MAX Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' Fixes: 27369/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MOBICLIP_fuzzer-5083469356728320 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=a108a4d809f8345303e1aa7578d608a726c53686 --- libavcodec/mobiclip.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/mobiclip.c b/libavcodec/mobiclip.c index 42d33cf6a5..3c2df80896 100644 --- a/libavcodec/mobiclip.c +++ b/libavcodec/mobiclip.c @@ -1146,6 +1146,8 @@ static int predict_motion(AVCodecContext *avctx, mv.x = mv.x + get_se_golomb(gb); mv.y = mv.y + get_se_golomb(gb); } + if (mv.x >= INT_MAX || mv.y >= INT_MAX) + return AVERROR_INVALIDDATA; motion[offsetm].x = mv.x; motion[offsetm].y = mv.y; _______________________________________________ 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".
