drm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68265
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:15 UTC
Updated2026-08-10 13:20:15 UTC
DescriptionIn 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)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe d256dac008d1d9e6378aa1a5454e89a8292d174c git Not specified
CNA Linux Linux affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe c4affa4e8bc8086b4d3e8d6cf1055a624f813d72 git Not specified
CNA Linux Linux affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe 7bc597ce74bab4153b2009c92eccf889e9d74044 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.44 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7bc597ce74bab4153b2009c92eccf889e9d74044 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c4affa4e8bc8086b4d3e8d6cf1055a624f813d72 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d256dac008d1d9e6378aa1a5454e89a8292d174c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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