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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-06-08 18:25:14 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-07-16 19:06:27 +0200 |
| commit | 5f771a74b23f83edbcc6f0cae79e458ac7931e1e (patch) | |
| tree | 193d588fbcf4f008f3daf58f1b8574dedaa7b9bc | |
| parent | a16a4fefb6d1dee75d329012c0e3ecaa7769ebd6 (diff) | |
| download | ffmpeg-5f771a74b23f83edbcc6f0cae79e458ac7931e1e.tar.gz | |
avcodec/h264_mc_template: Only prefetch motion if the list is used.
Fixes: index 59 out of bounds for type 'H264Ref [48]'
Fixes: 8232/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-5703295145345024
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8b55591757244d8244a2be369c2b54c9ae79b02a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264_mc_template.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/h264_mc_template.c b/libavcodec/h264_mc_template.c index 58c05044c1..d02e2bf580 100644 --- a/libavcodec/h264_mc_template.c +++ b/libavcodec/h264_mc_template.c @@ -78,7 +78,8 @@ static void MCFUNC(hl_motion)(const H264Context *h, H264SliceContext *sl, if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME)) await_references(h, sl); - prefetch_motion(h, sl, 0, PIXEL_SHIFT, CHROMA_IDC); + if (USES_LIST(mb_type, 0)) + prefetch_motion(h, sl, 0, PIXEL_SHIFT, CHROMA_IDC); if (IS_16X16(mb_type)) { mc_part(h, sl, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0, |