{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-37980", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.975Z", "datePublished": "2025-05-20T16:58:22.720Z", "dateUpdated": "2026-05-11T21:18:58.108Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:18:58.108Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix resource leak in blk_register_queue() error path\n\nWhen registering a queue fails after blk_mq_sysfs_register() is\nsuccessful but the function later encounters an error, we need\nto clean up the blk_mq_sysfs resources.\n\nAdd the missing blk_mq_sysfs_unregister() call in the error path\nto properly clean up these resources and prevent a memory leak."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/blk-sysfs.c"], "versions": [{"version": "320ae51feed5c2f13664aa05a76bec198967e04d", "lessThan": "6af6d5feebf9423ab3b252831d1f52de31a8b5e0", "status": "affected", "versionType": "git"}, {"version": "320ae51feed5c2f13664aa05a76bec198967e04d", "lessThan": "549cbbd14bbec12469ceb279b79c763c8a24224e", "status": "affected", "versionType": "git"}, {"version": "320ae51feed5c2f13664aa05a76bec198967e04d", "lessThan": "41e43134ddda35949974be40520460a12dda3502", "status": "affected", "versionType": "git"}, {"version": "320ae51feed5c2f13664aa05a76bec198967e04d", "lessThan": "55a7bb2708f7c7c5b366d4e40916113168a3824c", "status": "affected", "versionType": "git"}, {"version": "320ae51feed5c2f13664aa05a76bec198967e04d", "lessThan": "40f2eb9b531475dd01b683fdaf61ca3cfd03a51e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/blk-sysfs.c"], "versions": [{"version": "3.13", "status": "affected"}, {"version": "0", "lessThan": "3.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.88", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.25", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.4", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "3.13", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.6.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.12.25"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.14.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6af6d5feebf9423ab3b252831d1f52de31a8b5e0"}, {"url": "https://git.kernel.org/stable/c/549cbbd14bbec12469ceb279b79c763c8a24224e"}, {"url": "https://git.kernel.org/stable/c/41e43134ddda35949974be40520460a12dda3502"}, {"url": "https://git.kernel.org/stable/c/55a7bb2708f7c7c5b366d4e40916113168a3824c"}, {"url": "https://git.kernel.org/stable/c/40f2eb9b531475dd01b683fdaf61ca3cfd03a51e"}], "title": "block: fix resource leak in blk_register_queue() error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "30270671-4FE3-43CB-BC8D-8A8AF99CBF8B", "versionEndExcluding": "6.6.88", "versionStartIncluding": "3.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8E59EE65-FA6B-4AE4-8125-26135E28BF35", "versionEndExcluding": "6.12.25", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "29FA1A8E-1C2A-4B0B-B397-2C915ECDEDEE", "versionEndExcluding": "6.14.4", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix resource leak in blk_register_queue() error path\n\nWhen registering a queue fails after blk_mq_sysfs_register() is\nsuccessful but the function later encounters an error, we need\nto clean up the blk_mq_sysfs resources.\n\nAdd the missing blk_mq_sysfs_unregister() call in the error path\nto properly clean up these resources and prevent a memory leak."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloque: correcci\u00f3n de fuga de recursos en la ruta de error blk_register_queue(). Si el registro de una cola falla despu\u00e9s de que blk_mq_sysfs_register() se ejecute correctamente, pero la funci\u00f3n detecta un error posteriormente, es necesario limpiar los recursos blk_mq_sysfs. Agregue la llamada blk_mq_sysfs_unregister() faltante en la ruta de error para limpiar correctamente estos recursos y evitar una fuga de memoria."}], "id": "CVE-2025-37980", "lastModified": "2026-04-11T13:16:34.893", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-20T17:15:48.650", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40f2eb9b531475dd01b683fdaf61ca3cfd03a51e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/41e43134ddda35949974be40520460a12dda3502"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/549cbbd14bbec12469ceb279b79c763c8a24224e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/55a7bb2708f7c7c5b366d4e40916113168a3824c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6af6d5feebf9423ab3b252831d1f52de31a8b5e0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: block: fix resource leak in blk_register_queue() error path", "id": "2367614", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367614"}, "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:\nblock: fix resource leak in blk_register_queue() error path\nWhen registering a queue fails after blk_mq_sysfs_register() is\nsuccessful but the function later encounters an error, we need\nto clean up the blk_mq_sysfs resources.\nAdd the missing blk_mq_sysfs_unregister() call in the error path\nto properly clean up these resources and prevent a memory leak."], "name": "CVE-2025-37980", "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": "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": "2025-05-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37980\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37980\nhttps://lore.kernel.org/linux-cve-announce/2025052040-CVE-2025-37980-561f@gregkh/T"], "threat_severity": "Low"}

{"analysis": {"en": {"generated_at": "2026-04-21T20:42:51.373205+00:00", "value": {"mitigation_remediation": ["Apply a kernel update that includes the blk_register_queue resource leak fix (commit 40f2eb9b5315) to run a patched Linux kernel version, such as any release after the patch.", "If a kernel update is not immediately available, avoid loading custom block drivers that call blk_register_queue until the fix is applied, or isolate such drivers in a restricted environment to limit the potential impact.", "Configure system monitoring to detect abnormal kernel memory usage and set alerts to prompt administrators to apply the patch promptly."], "summary": {"action": "Patch", "impact": "Memory leak (resource exhaustion risk)"}, "threat_synthesis": {"affected_systems": "All Linux kernel builds prior to the fix, notably the 6.15 release candidates 1 and 2 and any earlier releases, are affected. Updating to a kernel version that includes commit 40f2eb9b5315 resolves the issue.", "description_and_impact": "The vulnerability is a resource leak in the Linux kernel\u2019s blk_register_queue error path. When a block queue registration succeeds through blk_mq_sysfs_register() but a later error occurs, the previously created sysfs resources are not removed, causing kernel memory to be consumed over time. This is a classic example of CWE-401 Unreleased Resource. The leak may allow an attacker to trigger repeated errors and eventually exhaust kernel memory, leading to a denial of service. The likely attack vector is any code path that registers block queues in the kernel, such as a custom block driver. The description states the missing cleanup, and it is inferred that repeated exploitation would accumulate unreleased memory until exhaustion.", "risk_and_exploitability": "The CVSS score of 5.5 indicates moderate impact. The EPSS score of less than 1% suggests low probability of exploitation in the wild. The vulnerability is not listed in CISA\u2019s KEV catalog. The error path requires the ability to invoke blk_register_queue, which normally necessitates privileged kernel code or a custom module; therefore a local attacker with elevated privileges or an existing module could exploit it. No publicly known exploit is available. Based on the description, it is inferred that a local privileged attacker could repeatedly trigger the error path to exhaust kernel memory and cause a denial of service."}}}}, "created": "2025-06-24T09:44:23.078483+00:00", "updated": "2026-04-21T20:45:25.982337+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}