CVE-2025-68218

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As reported in the Closes tag URL, the WARN indicates that\na deadlock can happen due to the dependency among disk->open_mutex,\nkblockd workqueue completion and partition_scan_work completion.\n\nTo avoid the lockdep WARN and the potential deadlock, cut the dependency\nby running the partition_scan_work not by kblockd workqueue but by\nnvme_wq."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - A malicious NVMe/TCP, RDMA, or FC controller can remotely drive namespace discovery, rapid remapping, ANA changes, and removal through protocol responses and asynchronous events.\nAC:L - The controller controls namespace presentation and removal and can repeatedly trigger rapid lifecycle changes to overlap automated partition scanning and device closure.\nPR:N - Once the host is connected, an NVMe-oF peer needs no privileges on the vulnerable host; authentication is optional and unauthenticated NVMe/TCP deployments are supported.\nUI:N - Namespace scanning and systemd-udevd device opening and closure occur automatically in a configured persistent NVMe-oF deployment.\nS:U - The deadlock affects resources within the host kernel's existing security authority and does not cross a virtualization or isolation boundary.\nC:N - The defect creates a circular locking dependency without exposing memory or providing an information-disclosure primitive.\nI:N - No memory corruption, unauthorized write, or control-flow modification results from the workqueue deadlock.\nA:H - The circular dependency can deadlock NVMe and block-layer work and device teardown, hanging storage operations and potentially critical system services."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/host/multipath.c"], "versions": [{"version": "60de2e03f984cfbcdc12fa552f95087c35a05a98", "lessThan": "89456dab7ba5ab63d60945440926673a3205e829", "status": "affected", "versionType": "git"}, {"version": "4a57f42e5ed42cb8f1beb262c4f6d3e698939e4e", "lessThan": "e2a897ad5f538d314955c747a0a2edb184fcdecd", "status": "affected", "versionType": "git"}, {"version": "1f021341eef41e77a633186e9be5223de2ce5d48", "lessThan": "ef4ab2a8abe554379e10303ae86f7c501336ba0d", "status": "affected", "versionType": "git"}, {"version": "1f021341eef41e77a633186e9be5223de2ce5d48", "lessThan": "b03eb63288a8ffe3adfb34e68309c8e2edb06d0b", "status": "affected", "versionType": "git"}, {"version": "1f021341eef41e77a633186e9be5223de2ce5d48", "lessThan": "6d87cd5335784351280f82c47cc8a657271929c3", "status": "affected", "versionType": "git"}, {"version": "a91b7eddf45afeeb9c5ece11dddff5de0921b00f", "status": "affected", "versionType": "git"}, {"version": "6.1.118", "lessThan": "6.1.159", "status": "affected", "versionType": "semver"}, {"version": "6.6.62", "lessThan": "6.6.118", "status": "affected", "versionType": "semver"}, {"version": "6.11.9", "lessThan": "6.12", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/host/multipath.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.159", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.118", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.60", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.10", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "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": "6.1.118", "versionEndExcluding": "6.1.159"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.62", "versionEndExcluding": "6.6.118"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.12.60"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.17.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/89456dab7ba5ab63d60945440926673a3205e829"}, {"url": "https://git.kernel.org/stable/c/e2a897ad5f538d314955c747a0a2edb184fcdecd"}, {"url": "https://git.kernel.org/stable/c/ef4ab2a8abe554379e10303ae86f7c501336ba0d"}, {"url": "https://git.kernel.org/stable/c/b03eb63288a8ffe3adfb34e68309c8e2edb06d0b"}, {"url": "https://git.kernel.org/stable/c/6d87cd5335784351280f82c47cc8a657271929c3"}], "title": "nvme-multipath: fix lockdep WARN due to partition scan work", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-68218", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-15T22:00:21.846501Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T22:02:48.088Z"}}]}}

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As reported in the Closes tag URL, the WARN indicates that\na deadlock can happen due to the dependency among disk->open_mutex,\nkblockd workqueue completion and partition_scan_work completion.\n\nTo avoid the lockdep WARN and the potential deadlock, cut the dependency\nby running the partition_scan_work not by kblockd workqueue but by\nnvme_wq."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnvme-multipath: correcci\u00f3n de WARN de lockdep debido al trabajo de escaneo de particiones\n\nLos casos de prueba de Blktests nvme/014, 057 y 058 fallan ocasionalmente debido a un WARN de lockdep. Seg\u00fan lo informado en la URL de la etiqueta Closes, el WARN indica que puede ocurrir un interbloqueo debido a la dependencia entre disk -> open_mutex, la finalizaci\u00f3n de la cola de trabajo de kblockd y la finalizaci\u00f3n de partition_scan_work.\n\nPara evitar el WARN de lockdep y el interbloqueo potencial, se corta la dependencia ejecutando partition_scan_work no por la cola de trabajo de kblockd sino por nvme_wq."}], "id": "CVE-2025-68218", "lastModified": "2026-10-15T22:19:10.890", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-68218", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T22:00:21.846501Z", "version": "2.0.3"}}]}, "published": "2025-12-16T14:15:54.897", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d87cd5335784351280f82c47cc8a657271929c3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/89456dab7ba5ab63d60945440926673a3205e829"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b03eb63288a8ffe3adfb34e68309c8e2edb06d0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2a897ad5f538d314955c747a0a2edb184fcdecd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ef4ab2a8abe554379e10303ae86f7c501336ba0d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: nvme-multipath: fix lockdep WARN due to partition scan work", "id": "2422726", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422726"}, "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": ["No description is available for this CVE."], "name": "CVE-2025-68218", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "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": "2025-12-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68218\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68218\nhttps://lore.kernel.org/linux-cve-announce/2025121632-CVE-2025-68218-4aee@gregkh/T"], "threat_severity": "Low"}

{}