Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a lack of synchronization mechanism between finalizepkvm and kvmarminit, which could lead to HYP mode...

The vulnerability of the kvm_hyp_reserve() function in the arch/arm64/kvm/pkvm.c module of the virtualization subsystem on the ARM 64-bit kernel of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the kvmhypreserve function in the arch/arm64/kvm/pkvm.c module of the virtualization subsystem on the ARM 64-bit kernel of the Linux operating system is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause...

kernel: Linux kernel KVM: Denial of Service due to incorrect kvm_arm_init failure handling in finalize_pkvm

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for arm64 architectures. This vulnerability arises from a lack of synchronization between the finalizepkvm and kvmarminit initialization calls. A local attacker with low privileges could exploit this by triggering a scenario...

GSD-2022-1004474 KVM: arm64: Prevent kmemleak from accessing pKVM memory

KVM: arm64: Prevent kmemleak from accessing pKVM memory This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.51 by commit...

GSD-2022-1000260 KVM: arm64: pkvm: Use the mm_ops indirection for cache maintenance

KVM: arm64: pkvm: Use the mmops indirection for cache maintenance This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.19 by commit...