CVE-2023-53522

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"unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.25", "versionType": "semver"}, {"lessThanOrEqual": "6.2.*", "status": "unaffected", "version": "6.2.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6867AE92-1249-46ED-9700-6669542F71CF", "versionEndExcluding": "6.1.25", "versionStartIncluding": "6.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4AA01E0B-227C-4686-AC91-BA30BCC48E6D", "versionEndExcluding": "6.2.12", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*", "matchCriteriaId": "B8E3B0E8-FA27-4305-87BB-AF6C25B160CB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*", "matchCriteriaId": "A47F0FC3-CE52-4BA1-BA51-22F783938431", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*", "matchCriteriaId": "3583026A-27EC-4A4C-850A-83F2AF970673", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc4:*:*:*:*:*:*", "matchCriteriaId": "DC271202-7570-4505-89A4-D602D47BFD00", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc5:*:*:*:*:*:*", "matchCriteriaId": "D413BB6D-4F74-4C7D-9163-47786619EF53", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc6:*:*:*:*:*:*", "matchCriteriaId": "F4D613FB-9976-4989-8C4A-567773373CEA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup,freezer: hold cpu_hotplug_lock before freezer_mutex\n\nsyzbot is reporting circular locking dependency between cpu_hotplug_lock\nand freezer_mutex, for commit f5d39b020809 (\"freezer,sched: Rewrite core\nfreezer logic\") replaced atomic_inc() in freezer_apply_state() with\nstatic_branch_inc() which holds cpu_hotplug_lock.\n\ncpu_hotplug_lock => cgroup_threadgroup_rwsem => freezer_mutex\n\n cgroup_file_write() {\n cgroup_procs_write() {\n __cgroup_procs_write() {\n cgroup_procs_write_start() {\n cgroup_attach_lock() {\n cpus_read_lock() {\n percpu_down_read(&cpu_hotplug_lock);\n }\n percpu_down_write(&cgroup_threadgroup_rwsem);\n }\n }\n cgroup_attach_task() {\n cgroup_migrate() {\n cgroup_migrate_execute() {\n freezer_attach() {\n mutex_lock(&freezer_mutex);\n (...snipped...)\n }\n }\n }\n }\n (...snipped...)\n }\n }\n }\n\nfreezer_mutex => cpu_hotplug_lock\n\n cgroup_file_write() {\n freezer_write() {\n freezer_change_state() {\n mutex_lock(&freezer_mutex);\n freezer_apply_state() {\n static_branch_inc(&freezer_active) {\n static_key_slow_inc() {\n cpus_read_lock();\n static_key_slow_inc_cpuslocked();\n cpus_read_unlock();\n }\n }\n }\n mutex_unlock(&freezer_mutex);\n }\n }\n }\n\nSwap locking order by moving cpus_read_lock() in freezer_apply_state()\nto before mutex_lock(&freezer_mutex) in freezer_change_state()."}], "id": "CVE-2023-53522", "lastModified": "2026-11-05T21:17:24.563", "metrics": {"cvssMetricV31": [{"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-2023-53522", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:23:05.576126Z", "version": "2.0.3"}}]}, "published": "2025-10-01T12:15:56.617", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/34fbb7b45bae20b551dda24337c7761ca13ce69d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3756171b97c307d9df8b8ded1d883eec30172085"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/57dcd64c7e036299ef526b400a8d12b8a2352f26"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: cgroup,freezer: hold cpu_hotplug_lock before freezer_mutex", "id": "2400797", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400797"}, "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": ["No description is available for this CVE."], "name": "CVE-2023-53522", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53522\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53522\nhttps://lore.kernel.org/linux-cve-announce/2025100133-CVE-2023-53522-4e19@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-02T08:38:41.342182+00:00", "updated": "2025-10-02T08:38:41.342246+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}