diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-30 12:36:08 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:53:29 +0200 |
| commit | 54d921f1594e2e739477f5706fe05b179b44fd67 (patch) | |
| tree | ca273e9cb4cb6f0b4f319f87eb7f22c340f39484 | |
| parent | 7274684a29091a99cb68abe0de8dfbbd9acd8fd7 (diff) | |
| download | ffmpeg-54d921f1594e2e739477f5706fe05b179b44fd67.tar.gz | |
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 <michael@niedermayer.cc>
(cherry picked from commit 497ea04dbda78d4eb9cffd208737b676f838725c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 26eb2d05d0..daf0b9e7ce 100644 --- a/libavcodec/h265_metadata_bsf.c +++ b/libavcodec/h265_metadata_bsf.c @@ -254,7 +254,7 @@ static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *out) } // 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 { |