CVE-2026-45944 iommu/vt-d: Clear Present bit before tearing down context entry

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

AMD Processors 安全漏洞

AMD Processors are a series of processors developed by American semiconductor company AMD. There are security vulnerabilities in AMD Processors, which stem from improper handling of direct memory writing by the input/output memory management unit. This can allow malicious client virtual machines ...