CVE-2025-39842

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ocfs2_free_slot_info()->\n __ocfs2_free_slot_info()->\n evict()->\n ocfs2_evict_inode()->\n ocfs2_clear_inode()->\n\t jbd2_journal_release_jbd_inode(osb->journal->j_journal,\n\nAdding osb->journal checks will prevent null-ptr-deref during the above\nexecution path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ocfs2/inode.c"], "versions": [{"version": "da5e7c87827e8caa6a1eeec6d95dcf74ab592a01", "lessThan": "42c415c53ad2065088cc411d08925effa5b3d255", "status": "affected", "versionType": "git"}, {"version": "da5e7c87827e8caa6a1eeec6d95dcf74ab592a01", "lessThan": "e9188f66e94955431ddbe2cd1cdf8ff2bb486abf", "status": "affected", "versionType": "git"}, {"version": "da5e7c87827e8caa6a1eeec6d95dcf74ab592a01", "lessThan": "f4a917e6cd6c798f7adf39907f117fc754db1283", "status": "affected", "versionType": "git"}, {"version": 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{}

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Por lo tanto, el siguiente rastreo de llamadas fallar\u00e1 inevitablemente cuando alcance jbd2_journal_release_jbd_inode().\n\nocfs2_dismount_volume()->\n ocfs2_delete_osb()->\n ocfs2_free_slot_info()->\n __ocfs2_free_slot_info()->\n evict()->\n ocfs2_evict_inode()->\n ocfs2_clear_inode()->\n\t jbd2_journal_release_jbd_inode(osb->journal->j_journal,\n\nA\u00f1adir comprobaciones de osb->journal evitar\u00e1 la desreferenciaci\u00f3n de puntero nulo durante la ruta de ejecuci\u00f3n anterior."}], "id": "CVE-2025-39842", "lastModified": "2026-10-19T21:10:00.160", "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": "2025-09-19T16:15:42.930", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/42c415c53ad2065088cc411d08925effa5b3d255"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/85e66331b60601d903cceaf8c10a234db863cd78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e9188f66e94955431ddbe2cd1cdf8ff2bb486abf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f46e8ef8bb7b452584f2e75337b619ac51a7cadf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f4a917e6cd6c798f7adf39907f117fc754db1283"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ocfs2: prevent release journal inode after journal shutdown", "id": "2396945", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396945"}, "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-2025-39842", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39842\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39842\nhttps://lore.kernel.org/linux-cve-announce/2025091902-CVE-2025-39842-495f@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-22T10:00:00.602126+00:00", "updated": "2025-09-22T10:06:22.131690+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}