CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's KVM module for arm64 architectures, specifically in the handling of translation faults during virtual memory operations. If exploited, this flaw could lead to improper handling of memory access errors, potentially allowing unauthorized access or system instability. Organizations utilizing Linux on arm64 systems, particularly those leveraging KVM for virtualization, should prioritize addressing this issue to mitigate potential risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort when kvm_translate_vncr() returns -EFAULT. This is not always the case as it's possible to encounter 'late' failures on the output of S1 translation, e.g. a GFN outside of the memslots. Fix it by preparing an external abort before returning from kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection path while at it.