On Sat, Sep 12, 2020 at 06:43:30PM +0200, Michael Niedermayer wrote: > Fixes: Timeout (too long -> 2sec) > Fixes: > 25439/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NOTCHLC_fuzzer-5688211127664640 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/notchlc.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/libavcodec/notchlc.c b/libavcodec/notchlc.c > index 3f7079da70..e7e69b0c21 100644 > --- a/libavcodec/notchlc.c > +++ b/libavcodec/notchlc.c > @@ -229,6 +229,9 @@ static int decode_blocks(AVCodecContext *avctx, AVFrame > *p, ThreadFrame *frame, > bytestream2_seek(&rgb, s->y_data_row_offsets, SEEK_SET); > bytestream2_seek(gb, s->y_control_data_offset, SEEK_SET); > > + if ((avctx->height + 3) / 4 * ((avctx->width + 3) / 4) * 4 > > bytestream2_get_bytes_left(gb)) > + return AVERROR_INVALIDDATA; > + > dsty = (uint16_t *)p->data[0]; > dsta = (uint16_t *)p->data[3]; > ylinesize = p->linesize[0] / 2; > -- > 2.17.1
Is this correct at all? If you do not like timeouts than get smaller samples or reduce dimensions of accepted files. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
