Message ID | 20201114222628.6486-4-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | a108a4d809f8345303e1aa7578d608a726c53686 |
Headers | show |
Series | [FFmpeg-devel,1/4] avformat/iff: Check size before skip | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
andriy/PPC64_make | success | Make finished |
andriy/PPC64_make_fate | success | Make fate finished |
diff --git a/libavcodec/mobiclip.c b/libavcodec/mobiclip.c index 9fa88e84a0..8504959b22 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;
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 <michael@niedermayer.cc> --- libavcodec/mobiclip.c | 2 ++ 1 file changed, 2 insertions(+)