CVE-2023-53116

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Such implementation potentially could result\nin a use after free of the request pointer when percpu_ref_put() is\ncalled in nvmet_req_complete().\n\nAvoid such problem by using a local variable to save the sq pointer\nbefore calling __nvmet_req_complete(), thus avoiding dereferencing the\nreq pointer after that function call."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "scenarios": [{"lang": "en", "value": "AV:N - The vulnerable code is in the shared NVMe target core and is reachable via network-facing transports such as nvmet-tcp and nvmet-rdma, which accept remote NVMe-oF connections and complete requests through nvmet_req_complete().\nAC:L - An attacker who can send NVMe commands reliably drives request completion; on FC the abort path frees the request synchronously inside queue_response, and on TCP/RDMA concurrent requests create a reuse race the attacker 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Such implementation potentially could result\nin a use after free of the request pointer when percpu_ref_put() is\ncalled in nvmet_req_complete().\n\nAvoid such problem by using a local variable to save the sq pointer\nbefore calling __nvmet_req_complete(), thus avoiding dereferencing the\nreq pointer after that function call."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvmet: evitar posible UAF en nvmet_req_complete(). La implementaci\u00f3n de la operaci\u00f3n nvme target ->queue_response() puede liberar la solicitud pasada como argumento. Esta implementaci\u00f3n podr\u00eda provocar un use after free del puntero de solicitud al llamar a percpu_ref_put() en nvmet_req_complete(). Para evitar este problema, utilice una variable local para guardar el puntero sq antes de llamar a __nvmet_req_complete(), evitando as\u00ed la desreferenciaci\u00f3n del puntero req despu\u00e9s de esa llamada."}], "id": "CVE-2023-53116", "lastModified": "2026-10-15T22:17:38.293", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-53116", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:34:05.995593Z", "version": "2.0.3"}}]}, "published": "2025-05-02T16:15:30.680", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/04c394208831d5e0d5cfee46722eb0f033cd4083"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6173a77b7e9d3e202bdb9897b23f2a8afe7bf286"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8ed9813871038b25a934b21ab76b5b7dbf44fc3a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a6317235da8aa7cb97529ebc8121cc2a4c4c437a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bcd535f07c58342302a2cd2bdd8894fe0872c8a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e5d99b29012bbf0e86929403209723b2806500c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1d5888a5efe345b63c430b256e95acb0a475642"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fafcb4b26393870c45462f9af6a48e581dbbcf7e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: nvmet: avoid potential UAF in nvmet_req_complete()", "id": "2363763", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363763"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnvmet: avoid potential UAF in nvmet_req_complete()\nAn nvme target ->queue_response() operation implementation may free the\nrequest passed as argument. Such implementation potentially could result\nin a use after free of the request pointer when percpu_ref_put() is\ncalled in nvmet_req_complete().\nAvoid such problem by using a local variable to save the sq pointer\nbefore calling __nvmet_req_complete(), thus avoiding dereferencing the\nreq pointer after that function call."], "name": "CVE-2023-53116", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53116\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53116\nhttps://lore.kernel.org/linux-cve-announce/2025050229-CVE-2023-53116-469c@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:23:59.274870+00:00", "updated": "2025-07-12T22:23:59.274938+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}