OSV-2021-211 Heap-use-after-free in __libcpp_strpbrk

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29698 Crash type: Heap-use-after-free READ 2 Crash state: libcppstrpbrk strpbrk tesseract::Tesseract::oneellconflict...