FFmpeg/libavcodec
Nuo Mi 9ef20920ab
avcodec/cbs_h266_syntax_template: Check num_output_layers_in_ols
from the specification:
For each OLS, there shall be at least one layer that is an output layer. In other words, for any value of i in the range of 0
to TotalNumOlss − 1, inclusive, the value of NumOutputLayersInOls[ i ] shall be greater than or equal to 1

Fixes: index 257 out of bounds for type 'uint8_t [257]'
Fixes: 61160/clusterfuzz-testcase-minimized-ffmpeg_BSF_VVC_METADATA_fuzzer-6709397181825024

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-09-19 21:28:40 +02:00
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