OSV-2022-15 Global-buffer-overflow in ZSTD_compressBlock_opt0

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43365 Crash type: Global-buffer-overflow READ 1 Crash state: ZSTDcompressBlockopt0 ZSTDcompressBlockbtopt ZSTDbuildSeqStore...