EUVD-2022-54670

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use trycmpxchguser to update guest PTE A/D bits Use the recently introduced trycmpxchguser to update guest PTE A/D bits instead of mapping the PTE into kernel address space. The VMPFNMAP path is broken as it assumes tha...

CVE-2022-49562: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use trycmpxchguser to update guest PTE A/D bits Use the recently introduced trycmpxchguser to update guest PTE A/D bits instead of mapping the PTE into kernel address space. The VMPFNMAP path is broken as it assumes tha...

GSD-2022-1003186 KVM: x86: Use __try_cmpxchg_user() to update guest PTE A/D bits

KVM: x86: Use trycmpxchguser to update guest PTE A/D bits 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 v5.17.13 by commit...

PT-2022-31449

Name of the Vulnerable Software and Affected Versions Linux Kernel versions v5.2 through v5.17.12 Description The issue concerns the use of try cmpxchg user to update guest PTE A/D bits in KVM x86. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kerne...

PT-2022-31141

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.18.2 Description The issue concerns the use of try cmpxchg user to update guest PTE A/D bits in KVM x86. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel...