{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53552", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-04T15:14:15.922Z", "datePublished": "2025-10-04T15:16:58.429Z", "dateUpdated": "2026-08-05T09:14:45.743Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:14:45.743Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: mark requests for GuC virtual engines to avoid use-after-free\n\nReferences to i915_requests may be trapped by userspace inside a\nsync_file or dmabuf (dma-resv) and held indefinitely across different\nproceses. To counter-act the memory leaks, we try to not to keep\nreferences from the request past their completion.\nOn the other side on fence release we need to know if rq->engine\nis valid and points to hw engine (true for non-virtual requests).\nTo make it possible extra bit has been added to rq->execution_mask,\nfor marking virtual engines.\n\n(cherry picked from commit 280410677af763f3871b93e794a199cfcf6fb580)" } ], "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 vulnerability is reached only through the i915 DRM device node (/dev/dri/renderD* or card node) via GEM context-create/submit ioctls and fence export; there is no network path.\nAC:L - The attacker controls both the freeing of the virtual engine (destroying the GEM context) and the release of the trapped fence, so the dangling-pointer dereference can be ordered deterministically without winning any uncontrollable race.\nPR:L - Creating parallel/virtual GuC contexts and submitting work requires only access to the DRM render node, available to any ordinary local user with GPU access; no CAP_SYS_ADMIN or real root is needed.\nUI:N - The entire sequence (context create, submit, fence trap, context destroy, fence release) is performed by the attacker's own process with no victim action required.\nS:U - The use-after-free corrupts kernel heap memory within the kernel's own security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed guc_virtual_engine object is read (engine->flags) after being reallocated, and the attacker can spray controlled contents into it, enabling disclosure of kernel memory contents.\nI:H - Beyond controlling freed-object contents, the power-of-2/single-sibling path performs a cmpxchg write into the freed engine's request_pool field, providing a UAF write primitive usable for heap corruption and control-flow influence.\nA:H - Dereferencing the dangling rq->engine on the fence-release path readily causes a kernel oops/panic, a reliable denial of service." } ] } ], "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/gt/intel_engine_types.h", "drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c", "drivers/gpu/drm/i915/i915_request.c" ], "versions": [ { "version": "bcb9aa45d5a0e11ef91245330c53cde214d15e8d", "lessThan": "8017a27cec32eac8c8f9430b0a3055840136b856", "status": "affected", "versionType": "git" }, { "version": "bcb9aa45d5a0e11ef91245330c53cde214d15e8d", "lessThan": "7fb464d52fa41c31a6fd1ad82888e67c65935d94", "status": "affected", "versionType": "git" }, { "version": "bcb9aa45d5a0e11ef91245330c53cde214d15e8d", "lessThan": "5eefc5307c983b59344a4cb89009819f580c84fa", "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/gt/intel_engine_types.h", "drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c", "drivers/gpu/drm/i915/i915_request.c" ], "versions": [ { "version": "6.0", "status": "affected" }, { "version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.54", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5.4", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6", "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": "6.0", "versionEndExcluding": "6.1.54" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.5.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8017a27cec32eac8c8f9430b0a3055840136b856" }, { "url": "https://git.kernel.org/stable/c/7fb464d52fa41c31a6fd1ad82888e67c65935d94" }, { "url": "https://git.kernel.org/stable/c/5eefc5307c983b59344a4cb89009819f580c84fa" } ], "title": "drm/i915: mark requests for GuC virtual engines to avoid use-after-free", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2023-53552", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-06-10T20:40:34.258783Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-11T18:44:03.036Z" } } ] } }