CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's KVM module for arm64 architectures, where improper handling of TLB Invalidation by Range can lead to potential overflows due to arbitrary virtual address manipulation by a guest. This flaw could allow a malicious guest to disrupt the hypervisor's memory management, potentially leading to information disclosure or system instability. Organizations utilizing KVM on arm64 systems should prioritize this issue to ensure the integrity and security of their virtualized environments.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Correctly cap TLBI Range to the architural limit TLB Invalidation by Range has a fairly powerful way of encoding pretty large ranges in a small number of bits. This range can be based on an arbitrary VA, which means it is pretty easy for a guest to generate an overflow should the hypervisor be naive enough to add the range to the base... Make sure the range is capped to the limit dictated by the address bit that determines the VA range. For an IPA invalidation, this is further corrected down the line to ignore the upper range.