{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52931", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-21T06:07:11.019Z", "datePublished": "2025-03-27T16:37:12.969Z", "dateUpdated": "2026-08-05T09:12:07.864Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:12:07.864Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Avoid potential vm use-after-free\n\nAdding the vm to the vm_xa table makes it visible to userspace, which\ncould try to race with us to close the vm. So we need to take our extra\nreference before putting it in the table.\n\n(cherry picked from commit 99343c46d4e2b34c285d3d5f68ff04274c2f9fb4)" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is reached only via DRM ioctls (I915_GEM_CONTEXT_GETPARAM / I915_GEM_VM_DESTROY) on a local i915 render or primary node; it is not reachable from the network stack or adjacent protocols.\nAC:L - The attacker controls both sides of the race from concurrent threads on the same DRM fd (GETPARAM publishing the vm into vm_xa vs VM_DESTROY), and the allocated vm_id is predictable under XA_FLAGS_ALLOC1, so success does not depend on conditions outside attacker control.\nPR:L - The affected ioctls are DRM_RENDER_ALLOW and require only an unprivileged open of /dev/dri/renderD* (typically render-group or session uaccess), not real root or init-namespace admin capabilities.\nUI:N - Exploitation is fully self-driven by the attacker's own ioctls after opening the render node; no separate victim action is required.\nS:U - A successful kernel UAF yields privilege escalation within the same host kernel security authority and does not cross a VM, IOMMU, or other explicit security boundary.\nC:H - The bug is a use-after-free of struct i915_address_space (ctx->vm left dangling after an unmatched i915_vm_put), which can be reclaimed and leveraged for arbitrary kernel memory disclosure.\nI:H - The same UAF on a refcounted kernel object enables heap reuse and write primitives suitable for control-flow hijacking or arbitrary kernel memory modification.\nA:H - Triggering the race can free the live context VM and cause kernel oops/panic or GPU/context teardown failures, producing a full availability impact even without full exploitation." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/i915/gem/i915_gem_context.c" ], "versions": [ { "version": "9ec8795e7d91bc650db03dc6f5315667555dae11", "lessThan": "764accc2c1b8fd1507be2e7f436c94cdce887a00", "status": "affected", "versionType": "git" }, { "version": "9ec8795e7d91bc650db03dc6f5315667555dae11", "lessThan": "41d419382ec7e257e54b7b6ff0d3623aafb1316d", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/i915/gem/i915_gem_context.c" ], "versions": [ { "version": "5.16", "status": "affected" }, { "version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.11", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.1.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/764accc2c1b8fd1507be2e7f436c94cdce887a00" }, { "url": "https://git.kernel.org/stable/c/41d419382ec7e257e54b7b6ff0d3623aafb1316d" } ], "title": "drm/i915: Avoid potential vm use-after-free", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2023-52931", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-03-28T15:22:44.463272Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-28T15:31:59.802Z" } } ] } }