James Almer:
> Similar logic as 4e2bef6a82. In scearios where an Access Unit is written right
> after reading it using the same CBS context (hevc_metadata), the list of 
> parsed
> parameters sets used by the writer must not be the one that's the result of 
> the
> reader having already parsed the current Access Unit in question.
> 
> Fixes: out of array access
> Fixes: 
> 23034/clusterfuzz-testcase-minimized-ffmpeg_BSF_HEVC_METADATA_fuzzer-5074645169733632.fuzz
> 
> Found-by: continuous fuzzing process 
> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: James Almer <jamr...@gmail.com>
> ---
> An alternative is forcing the usage of separate CBS contexts for reading and
> writing.
> 

Am I the only one who thinks this would be cleaner, as it would directly
show to the user that there are two separate states involved? It would
also lead to a smaller diff.

- Andreas
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