Message ID | 20200613200345.26762-2-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 75e2ac4f0752649a0b9486e6825ef68341ee974d |
Headers | show |
Series | [FFmpeg-devel,1/2] avcodec/ffwavesynth: Avoid undefined operation on ts overflow | expand |
Context | Check | Description |
---|---|---|
andriy/default | pending | |
andriy/make | success | Make finished |
andriy/make_fate | success | Make fate finished |
On Sat, Jun 13, 2020 at 10:03:45PM +0200, Michael Niedermayer wrote: > Fixes: Timeout (longer than my patience vs 1sec) > Fixes: 22984/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5630021988515840 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/mv30.c | 3 +++ > 1 file changed, 3 insertions(+) will apply [...]
diff --git a/libavcodec/mv30.c b/libavcodec/mv30.c index 013a5753fe..76b9170eaf 100644 --- a/libavcodec/mv30.c +++ b/libavcodec/mv30.c @@ -410,6 +410,9 @@ static int decode_intra(AVCodecContext *avctx, GetBitContext *gb, AVFrame *frame int ret; mgb = *gb; + if (get_bits_left(gb) < s->mode_size * 8) + return AVERROR_INVALIDDATA; + skip_bits_long(gb, s->mode_size * 8); linesize[0] = frame->linesize[0];
Fixes: Timeout (longer than my patience vs 1sec) Fixes: 22984/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5630021988515840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/mv30.c | 3 +++ 1 file changed, 3 insertions(+)