Fixes: out of array access
Fixes: 18499/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5749038406434816
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
return ret;
if (orig_mv_x >= -32) {
- if (y * 8 + mv_y < 0 || y * 8 + mv_y >= h ||
- x * 8 + mv_x < 0 || x * 8 + mv_x >= w)
+ if (y * 8 + mv_y < 0 || y * 8 + mv_y + 8 > h ||
+ x * 8 + mv_x < 0 || x * 8 + mv_x + 8 > w)
return AVERROR_INVALIDDATA;
copy_block8(frame->data[plane] + (s->blocks_h - 1 - y) * 8 * frame->linesize[plane] + x * 8,