3 security issues (#2180425) x86 shadow plus log-dirty mode use-after-free [XSA-427, CVE-2022-42332] x86/HVM pinned cache attributes mis-handling [XSA-428, CVE-2022-42333, CVE-2022-42334] x86: speculative vulnerability in 32bit SYSCALL path [XSA-429, CVE-2022-42331]