Michael Niedermayer: > Fixes: out of array read on 32bit > Fixes: > 54857/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5840588224462848 > > The chroma MC code reads over the currently allocated frame. > Alternative fixes would be allocating a few bytes more at the end instead of > a whole > line extra or to adjust the threshold where the edge emu code is activated > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/utils.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/libavcodec/utils.c b/libavcodec/utils.c > index 2b63a498b9..1aa0a05a31 100644 > --- a/libavcodec/utils.c > +++ b/libavcodec/utils.c > @@ -321,6 +321,7 @@ void avcodec_align_dimensions2(AVCodecContext *s, int > *width, int *height, > *width = FFALIGN(*width, w_align); > *height = FFALIGN(*height, h_align); > if (s->codec_id == AV_CODEC_ID_H264 || s->lowres || > + s->codec_id == AV_CODEC_ID_VC1 || s->codec_id == AV_CODEC_ID_WMV3 || > s->codec_id == AV_CODEC_ID_VP5 || s->codec_id == AV_CODEC_ID_VP6 || > s->codec_id == AV_CODEC_ID_VP6F || s->codec_id == AV_CODEC_ID_VP6A > ) {
Does this only happen on 32bit systems? If so, why? - Andreas _______________________________________________ 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".
