CyberRota Analysis
AI-GeneratedA vulnerability in the Linux kernel affects the Direct Rendering Manager (DRM) subsystem, specifically related to buffer object (BO) virtual memory areas (VMAs). The flaw can lead to an out-of-bounds access due to improper handling of memory type indices, potentially resulting in system instability or crashes. Organizations utilizing Linux systems with graphics processing capabilities, particularly those relying on Intel hardware, should prioritize applying the fix to mitigate any risks associated with this vulnerability.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC When prefetch region is DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC for a BO VMA, the code used it as an index into region_to_mem_type[], causing an out-of-bounds access since the value is -1. Resolve the preferred location for BO VMAs directly: local VRAM on dGFX (using the BO's tile placement) or system memory on iGPU. Discovered using AI-assisted static analysis confirmed by Intel Product Security. v2: -Fix null dereference (cherry picked from commit d9a4906ac03be9f6ed3f3b45c56c866b867fd75b)