OSV-2021-456 Heap-buffer-overflow in grk::Quantizer::read_SQcd_SQcc

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31460 Crash type: Heap-buffer-overflow READ 1 Crash state: grk::Quantizer::readSQcdSQcc grk::CodeStreamDecompress::readqcd grk::CodeStreamDecompress::processmarker...