CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel, specifically in the handling of page-table walks by the GRU TLB miss handler, which operates without proper locking mechanisms or references to mapped pages. This could lead to potential security risks due to improper access to user page tables, particularly on x86-64 architectures. Organizations using Linux systems, especially those leveraging the GRU for memory management, should prioritize addressing this issue to mitigate possible exploitation risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: misc: sgi-gru: remove interrupt-context page-table walks The GRU TLB miss handler walks a process's page tables without holding page-table locks or a reference to the mapped page. It also uses a kernel page-table accessor on user page tables and supports only PMD-level large mappings on x86-64. Remove the direct walker. Send interrupt faults directly to user polling mode so the existing call-OS fallback retries them in process context. Remove the mmap-lock failure statistic that can no longer be incremented.