OSV-2023-663 Segv on unknown address in decUnitCompare

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61235 Crash type: Segv on unknown address Crash state: decUnitCompare decCompare decCompareOp...

OSV-2023-645 Segv on unknown address in decUnitCompare

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61050 Crash type: Segv on unknown address Crash state: decUnitCompare decCompare decCompareOp...