OSV-2020-2228 Heap-buffer-overflow in grk::t1_part1::T1Part1::decompress

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28227 Crash type: Heap-buffer-overflow READ Crash state: grk::t1part1::T1Part1::decompress grk::DecompressBlockExec::open grk::T1DecompressScheduler::decompressBlock...