جزئیات آسیب‌پذیری

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)

• https://git.kernel.org/stable/c/d256dac008d1d9e6378aa1a5454e89a8292d174c
• https://git.kernel.org/stable/c/c4affa4e8bc8086b4d3e8d6cf1055a624f813d72
• https://git.kernel.org/stable/c/7bc597ce74bab4153b2009c92eccf889e9d74044