CVE-2024-14027

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In multi-threaded processes\nwhere fdget() takes the slow path, this permanently leaks one\nfile reference per call, pinning the struct file and associated kernel\nobjects in memory. An unprivileged local user can exploit this to cause\nkernel memory exhaustion. The issue was inadvertently fixed by commit\na71874379ec8 (\"xattr: switch to CLASS(fd)\")."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs/xattr: falta fdput() en la ruta de error de fremovexattr\n\nEn el kernel de Linux, la llamada al sistema fremovexattr() llama a fdget() para adquirir una referencia de archivo, pero retorna prematuramente sin llamar a fdput() cuando strncpy_from_user() falla en el argumento 'name'. En procesos multihilo donde fdget() toma la ruta lenta, esto fuga permanentemente una referencia de archivo por llamada, fijando la estructura 'struct file' y los objetos del kernel asociados en memoria. Un usuario local sin privilegios puede explotar esto para causar agotamiento de la memoria del kernel. El problema fue corregido inadvertidamente por el commit a71874379ec8 ('xattr: switch to CLASS(fd)')."}], "id": "CVE-2024-14027", "lastModified": "2026-11-05T21:17:32.583", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-14027", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:27:26.804118Z", "version": "2.0.3"}}]}, "published": "2026-03-09T16:16:14.313", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9a3a2ae5efbbcaed37551218abed94e23c537157"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a71874379ec8c6e788a61d71b3ad014a8d9a5c08"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d151b94967c8247005435b63fc60f8f4baa320da"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: xattr: switch to CLASS(fd)", "id": "2445789", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445789"}, "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-2024-14027", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "2026-03-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-14027\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-14027\nhttps://lore.kernel.org/linux-cve-announce/2026030917-CVE-2024-14027-5c00@gregkh/T"], "threat_severity": "Low"}

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