OSV-2022-245 Heap-buffer-overflow in grk::PacketIter::genPrecinctInfo

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45548 Crash type: Heap-buffer-overflow READ 4 Crash state: grk::PacketIter::genPrecinctInfo grk::PacketManager::PacketManager grk::T2Decompress::decompressPackets...

OSV-2022-243 Heap-buffer-overflow in grk::PacketIter::next_pcrl

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45537 Crash type: Heap-buffer-overflow READ 1 Crash state: grk::PacketIter::nextpcrl grk::T2Decompress::decompressPackets grk::TileProcessor::decompressT2...