CVE-2026-68265

drm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC

State: Published
Severity: 7.3 High
Published: Aug 10, 2026
Updated: Oct 19, 2026
Reserved: Jul 30, 2026

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)

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H	Linux

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
LinuxLinux	c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe to before d256dac008d1d9e6378aa1a5454e89a8292d174cAffected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe to before c4affa4e8bc8086b4d3e8d6cf1055a624f813d72Affected c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe to before 7bc597ce74bab4153b2009c92eccf889e9d74044Affected
LinuxLinux	6.18Affected before 6.18Not affected 6.18.44 through 6.18.Not affected 7.1.6 through 7.1.Not affected 7.2 and laterNot affected

References

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