diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-04-27 00:09:02 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-04-27 21:16:39 +0200 |
| commit | 5eb05f44503da3fdff82f1fed8ee2706d9841a9a (patch) | |
| tree | 7f56168a7355ae04eb964ac84e90c7422d2f4984 | |
| parent | 4c8a6631ad13b6d68b7190507aa7a630a73884c9 (diff) | |
| download | ffmpeg-5eb05f44503da3fdff82f1fed8ee2706d9841a9a.tar.gz | |
avcodec/hevcdec: Check ref frame
Fixes: NULL pointer dereferences
Fixes: 68197/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-6382538823106560
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/hevcdec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c index fcfb275f63..b41dc46053 100644 --- a/libavcodec/hevcdec.c +++ b/libavcodec/hevcdec.c @@ -1969,13 +1969,13 @@ static void hls_prediction_unit(HEVCLocalContext *lc, int x0, int y0, if (current_mv.pred_flag & PF_L0) { ref0 = refPicList[0].ref[current_mv.ref_idx[0]]; - if (!ref0 || !ref0->frame->data[0]) + if (!ref0 || !ref0->frame) return; hevc_await_progress(s, ref0, ¤t_mv.mv[0], y0, nPbH); } if (current_mv.pred_flag & PF_L1) { ref1 = refPicList[1].ref[current_mv.ref_idx[1]]; - if (!ref1 || !ref1->frame->data[0]) + if (!ref1 || !ref1->frame) return; hevc_await_progress(s, ref1, ¤t_mv.mv[1], y0, nPbH); } |