4dc6f76 2 security updates

Authored and Committed by myoung a month ago
    2 security updates
    
    x86 HVM hypercalls may trigger Xen bug check [XSA-454, CVE-2023-46842]
    x86: Incorrect logic for BTC/SRSO mitigations [XSA-455, CVE-2024-31142]
    
        
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