AMD多款产品 安全漏洞

AMD EPYC is a high-performance server processor developed by American semiconductor company AMD. Several AMD products have security vulnerabilities. These vulnerabilities stem from improper execution of the LFENCE serialization attribute, which may allow attackers to bypass the speculation barrie...

CVE-2021-47277

CVE-2021-47277 affects the Linux kernel KVM path for guest memory translation. The issue arises when speculative execution may use an invalid guest frame number (gfn) to compute an out-of-bounds host virtual address (hva) in __gfn_to_hva_memslot, enabling a potential two-read Spectre gadget where...