CVE-2026-31451

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This prevents kernel panic and allows the system to\ncontinue running while properly reporting the filesystem corruption.\n\nThe error is logged via ext4_error_inode(), the buffer head is released\nto prevent memory leak, and -EFSCORRUPTED is returned to indicate\nfilesystem corruption."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\next4: reemplazar BUG_ON con un manejo de errores adecuado en ext4_read_inline_folio\n\nReemplazar BUG_ON() con un manejo de errores adecuado cuando el tama\u00f1o de los datos en l\u00ednea excede PAGE_SIZE. Esto previene un p\u00e1nico del kernel y permite que el sistema contin\u00fae ejecut\u00e1ndose mientras informa adecuadamente la corrupci\u00f3n del sistema de archivos.\n\nEl error se registra a trav\u00e9s de ext4_error_inode(), el encabezado del b\u00fafer se libera para prevenir una fuga de memoria, y se devuelve -EFSCORRUPTED para indicar corrupci\u00f3n del sistema de archivos."}], "id": "CVE-2026-31451", "lastModified": "2026-11-11T23:10:00.263", "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-2026-31451", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T21:33:45.502116Z", "version": "2.0.3"}}]}, "published": "2026-04-22T14:16:39.310", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3462a3f0716d27af51896dc8688bcf0628fb17ee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/636e8d85a36ab6c31aafd04ee66a69b18eebee7b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/823849a26af089ffc5dfdd2ae4b9d446b46a0cda"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7d600e04732a7d29b107c91fe3aec64cf6ce7f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af25a6affeac4919e8d8c5cccc01a9d53478447e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio", "id": "2460690", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460690"}, "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"}, "cwe": "CWE-1284", "details": ["A flaw was found in the Linux kernel's ext4 filesystem. When processing inline data, if the data size exceeded the expected page size, it could lead to a kernel panic. This issue could be triggered by a local user with access to a specially crafted or corrupted ext4 filesystem, resulting in a system crash and a denial of service."], "name": "CVE-2026-31451", "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": "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": "2026-04-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31451\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31451\nhttps://lore.kernel.org/linux-cve-announce/2026042248-CVE-2026-31451-cec9@gregkh/T"], "threat_severity": "Moderate"}

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