OSV-2022-988 Heap-buffer-overflow in onig_vsnprintf_with_pattern

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51934 Crash type: Heap-buffer-overflow READ 1 Crash state: onigvsnprintfwithpattern onigsyntaxwarn fetchtoken...