Description (CNA)
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)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe before d256dac008d1d9e6378aa1a5454e89a8292d174c; affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe before c4affa4e8bc8086b4d3e8d6cf1055a624f813d72; affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe before 7bc597ce74bab4153b2009c92eccf889e9d74044 |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.18.44 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d256dac008d1d9e6378aa1a5454e89a8292d174c
- https://git.kernel.org/stable/c/c4affa4e8bc8086b4d3e8d6cf1055a624f813d72
- https://git.kernel.org/stable/c/7bc597ce74bab4153b2009c92eccf889e9d74044
ADP enrichment
No English description supplied.
No references supplied.