CVE-2023-53484

{"id": "CVE-2023-53484", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-10-01T12:15:51.180", "references": [{"url": "https://git.kernel.org/stable/c/4e0473f1060aa49621d40a113afde24818101d37", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/67bca5f1d644f4e79b694abd8052a177de81c37f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/981f339d2905b6a92ef59358158b326493aecac5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c6ed54dd90698dc0744d669524cc1c122ded8a16", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c9115f49cf260d24d8b5f2d9a4b63cb31a627bb4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cc2d2b3dbfb0ba57bc027fb7e1121250c50e4000", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d1308bd0b24cb1d78fa2747d5fa3e055cc628a48", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f748e15253833b771acbede14ea98f50831ac289", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlib: cpu_rmap: Avoid use after free on rmap->obj array entries\n\nWhen calling irq_set_affinity_notifier() with NULL at the notify\nargument, it will cause freeing of the glue pointer in the\ncorresponding array entry but will leave the pointer in the array. A\nsubsequent call to free_irq_cpu_rmap() will try to free this entry again\nleading to possible use after free.\n\nFix that by setting NULL to the array entry and checking that we have\nnon-zero at the array entry when iterating over the array in\nfree_irq_cpu_rmap().\n\nThe current code does not suffer from this since there are no cases\nwhere irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the\nnotify arg) is called, followed by a call to free_irq_cpu_rmap() so we\ndon't hit and issue. Subsequent patches in this series excersize this\nflow, hence the required fix."}], "lastModified": "2026-01-20T16:35:24.737", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7A02E65-365A-4781-BA03-7D649C1BCED3", "versionEndExcluding": "4.14.316", "versionStartIncluding": "3.8.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9112EE64-11F4-46DB-A041-95118F20F81B", "versionEndExcluding": "4.19.284", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79F47095-8BA3-495A-AED3-2CCA5F2838E6", "versionEndExcluding": "5.4.244", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F5B1726B-45AA-47F2-9261-6DC963E92248", "versionEndExcluding": "5.10.181", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3D5E1B5-AB9D-4ECC-8F11-F3E1BF761E27", "versionEndExcluding": "5.15.113", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E9430E62-03EA-42E6-9E5E-BD1D5124D107", "versionEndExcluding": "6.1.30", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "26C54BF0-3EED-46D4-92A7-5F07F658B49B", "versionEndExcluding": "6.3.4", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BEE536AD-20BA-4893-AF2B-B6CF446F5FB3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AC348729-8654-4178-851F-5C4BE4B5C806"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A29F057-1966-4A35-83AE-844FF160388B"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC426C5C-DA23-494D-888F-4E3712EBA3E2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "70810C1C-2B24-47DF-9357-E9D755D1BE99"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}