{"id":"CVE-2026-68265","title":"drm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC\n\nWhen prefetch region is DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC for a BO VMA,\nthe code used it as an index into …","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe < d256dac008d1d9e6378aa1a5454e89a8292d174c","Linux >= c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe < c4affa4e8bc8086b4d3e8d6cf1055a624f813d72","Linux >= c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe < 7bc597ce74bab4153b2009c92eccf889e9d74044","Linux 6.18"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-16T15:46:24.156978Z"},"published":"2026-08-10","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:53:05.503Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68265","references":[{"url":"https://git.kernel.org/stable/c/d256dac008d1d9e6378aa1a5454e89a8292d174c"},{"url":"https://git.kernel.org/stable/c/c4affa4e8bc8086b4d3e8d6cf1055a624f813d72"},{"url":"https://git.kernel.org/stable/c/7bc597ce74bab4153b2009c92eccf889e9d74044"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.02289,"ingestedAt":"2026-10-16T17:24:46.852Z","slug":"CVE-2026-68265","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC\n\nWhen prefetch region is DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC for a BO VMA,\nthe code used it as an index into region_to_mem_type[], causing an\nout-of-bounds access since the value is -1.\n\nResolve the preferred location for BO VMAs directly: local VRAM on dGFX\n(using the BO's tile placement) or system memory on iGPU.\n\nDiscovered using AI-assisted static analysis confirmed by Intel Product\nSecurity.\n\nv2:\n-Fix null dereference\n\n(cherry picked from commit d9a4906ac03be9f6ed3f3b45c56c866b867fd75b)\n\n## Affected\n\n- `Linux >= c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe < d256dac008d1d9e6378aa1a5454e89a8292d174c`\n- `Linux >= c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe < c4affa4e8bc8086b4d3e8d6cf1055a624f813d72`\n- `Linux >= c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe < 7bc597ce74bab4153b2009c92eccf889e9d74044`\n- `Linux 6.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":40.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}