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{}

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direcciones al invertir el indicador GFS2_DIF_JDATA Trunca el espacio de direcciones de un inodo al invertir el indicador GFS2_DIF_JDATA: dependiendo de ese indicador, las p\u00e1ginas en el espacio de direcciones usar\u00e1n encabezados de b\u00fafer o estructuras iomap_folio_state, y no podemos mezclar los dos."}], "id": "CVE-2025-21699", "lastModified": "2025-02-14T14:06:47.237", "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": "2025-02-12T14:15:33.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], 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{"bugzilla": {"description": "kernel: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag", "id": "2345213", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2345213"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ngfs2: Truncate address space when flipping GFS2_DIF_JDATA flag\nTruncate an inode's address space when flipping the GFS2_DIF_JDATA flag:\ndepending on that flag, the pages in the address space will either use\nbuffer heads or iomap_folio_state structs, and we cannot mix the two."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module gfs2 from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2025-21699", "package_state": [{"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": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21699\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21699\nhttps://lore.kernel.org/linux-cve-announce/2025021202-CVE-2025-21699-029f@gregkh/T"], "statement": "The bug could happen only if cluster of computers to simultaneously use a block device that is shared between them using gfs2 file system. The security impact is limited, because only corruption of this file-system could happen.", "threat_severity": "Moderate"}