OSV-2020-1886 Use-of-uninitialized-value in gs_scan_token

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21622 Crash type: Use-of-uninitialized-value Crash state: gsscantoken interp gscallinterp...

OSV-2020-1873 Use-of-uninitialized-value in zcheck_r6_password

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23440 Crash type: Use-of-uninitialized-value Crash state: zcheckr6password interp gscallinterp...