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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-07-23 19:52:35 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-07-25 23:17:28 +0200 |
| commit | c5c719f030a209cc404754f928972a6c1a24dfef (patch) | |
| tree | af90d9674271ce48c153e11d95469427bb720799 | |
| parent | 574f3aaeff6d04762f02044f1ee1e3564bc3ad00 (diff) | |
| download | ffmpeg-c5c719f030a209cc404754f928972a6c1a24dfef.tar.gz | |
avcodec/h266_metadata_bsf: Check if there are CodedBitstreamFragment units
Fixes: NULL pointer dereference
Fixes: 60269/clusterfuzz-testcase-minimized-ffmpeg_BSF_VVC_METADATA_fuzzer-5215449416335360
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h266_metadata_bsf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h266_metadata_bsf.c b/libavcodec/h266_metadata_bsf.c index c0dbf8ef96..1f0f875cfe 100644 --- a/libavcodec/h266_metadata_bsf.c +++ b/libavcodec/h266_metadata_bsf.c @@ -43,7 +43,7 @@ static int h266_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt, int err, i; // If an AUD is present, it must be the first NAL unit. - if (pu->units[0].type == VVC_AUD_NUT) { + if (pu->nb_units && pu->units[0].type == VVC_AUD_NUT) { if (ctx->aud == BSF_ELEMENT_REMOVE) ff_cbs_delete_unit(pu, 0); } else if ( pkt && ctx->aud == BSF_ELEMENT_INSERT) { |