diff options
| author | Michael Niedermayer <[email protected]> | 2021-03-30 12:36:08 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-10-06 14:41:41 +0200 |
| commit | af51095d9c37baf0b12bb37053745dde6e7167fa (patch) | |
| tree | c6e54d27677c93bc42082e8553577e7662da86c9 | |
| parent | 0729fe564b4d371ce07b9ccf78e5114a28de5515 (diff) | |
avcodec/h265_metadata_bsf: Check nb_units before accessing the first in h265_metadata_update_fragment()
Fixes: null pointer dereference
Fixes: 32113/clusterfuzz-testcase-minimized-ffmpeg_BSF_HEVC_METADATA_fuzzer-4803262287052800
Same as 0c48c332eeb2866d9353125f701e099c48889463
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit 497ea04dbda78d4eb9cffd208737b676f838725c)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavcodec/h265_metadata_bsf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h265_metadata_bsf.c b/libavcodec/h265_metadata_bsf.c index 749456157b..e70b55c734 100644 --- a/libavcodec/h265_metadata_bsf.c +++ b/libavcodec/h265_metadata_bsf.c @@ -415,7 +415,7 @@ static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *pkt) } // If an AUD is present, it must be the first NAL unit. - if (au->units[0].type == HEVC_NAL_AUD) { + if (au->nb_units && au->units[0].type == HEVC_NAL_AUD) { if (ctx->aud == REMOVE) ff_cbs_delete_unit(ctx->cbc, au, 0); } else { |