CVE-2023-53552

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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"}}]}}

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{"bugzilla": {"description": "kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free", "id": "2401514", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2401514"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/i915: mark requests for GuC virtual engines to avoid use-after-free\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(cherry picked from commit 280410677af763f3871b93e794a199cfcf6fb580)"], "name": "CVE-2023-53552", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53552\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53552\nhttps://lore.kernel.org/linux-cve-announce/2025100447-CVE-2023-53552-5ba9@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-06T14:41:08.263692+00:00", "updated": "2025-10-06T14:41:08.263806+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}