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| author | Frank Plowman <post@frankplowman.com> | 2024-01-30 09:40:57 +0000 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2024-01-30 09:24:03 -0300 |
| commit | 36a986d9a193e39382de4bac95e2e314cc30ca7a (patch) | |
| tree | ba81d7e5e54581591c65c8506989f346e84f85c3 | |
| parent | bc944168db90cbeefab335d9b1251a31effa5bd7 (diff) | |
| download | ffmpeg-36a986d9a193e39382de4bac95e2e314cc30ca7a.tar.gz | |
lavc/vvc: Add check to num_multi_layer_olss
Check that vps_each_layer_is_an_ols_flag, which indicates that "at
least one OLS specified by the VPS contains more than one layer," is
set if num_multi_layer_olss is non-zero.
Fixes: 65160/clusterfuzz-testcase-minimized-ffmpeg_BSF_VVC_METADATA_fuzzer-4665241535119360
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Frank Plowman <post@frankplowman.com>
Signed-off-by: James Almer <jamrial@gmail.com>
| -rw-r--r-- | libavcodec/cbs_h266_syntax_template.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/cbs_h266_syntax_template.c b/libavcodec/cbs_h266_syntax_template.c index 2f3478e5e1..37dc3acba0 100644 --- a/libavcodec/cbs_h266_syntax_template.c +++ b/libavcodec/cbs_h266_syntax_template.c @@ -911,6 +911,8 @@ static int FUNC(vps) (CodedBitstreamContext *ctx, RWContext *rw, num_multi_layer_olss++; } } + if (!current->vps_each_layer_is_an_ols_flag && num_multi_layer_olss == 0) + return AVERROR_INVALIDDATA; } for (i = 0; i <= current->vps_num_ptls_minus1; i++) { |