From: Frank Plowman <p...@frankplowman.com> 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 <p...@frankplowman.com> --- libavcodec/cbs_h266_syntax_template.c | 2 ++ 1 file changed, 2 insertions(+) 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++) { -- 2.43.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
