CVE-2025-71311

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When new folios are allocated without being\nmarked uptodate and ni_read_frame() is skipped because the caller expects\nthe frame to be completely overwritten, some reserved folios may remain\nonly partially filled, leaving the rest memory uninitialized."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "baseScore": 8.2, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - A remote SMB or NFS client can reach ntfs3's write path when a compressed NTFS volume is exported by ksmbd or nfsd. Writable NTFS-backed network shares are a reasonable NAS/server deployment.\nAC:L - No race is required; the attacker controls the write offset and length and can reliably end a write inside a newly allocated compression frame.\nPR:N - ksmbd supports anonymous guest-writable shares, including compressed directories whose new files inherit compression, so exploitation can require no credentials.\nUI:N - Once the share and filesystem are available, the attacker can perform the write, EOF extension, and read without victim interaction.\nS:U - The disclosure and limited data corruption remain within the host kernel and its filesystem security authority.\nC:H - Unfilled portions of an 8\u201364 KiB frame contain stale allocator data but are compressed, persisted, and marked uptodate. Extending EOF and reading can expose substantial kernel or cross-process memory, and the process can be repeated.\nI:L - Uninitialized bytes can become file contents instead of the required zero-filled extension, causing limited and value-uncontrolled data modification. The bug does not provide an arbitrary kernel write or control-flow primitive.\nA:N - The compression code keeps pointers, indexes, and output sizes bounded, so the uninitialized values do not crash a normal kernel. A KMSAN diagnostic on specially instrumented kernels is not a production availability impact."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/file.c"], "versions": [{"version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "lessThan": "dd6c81527d097b3b0bf5a15c2fdc9657d045144c", "status": "affected", "versionType": "git"}, {"version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "lessThan": "5a30cc03bde169ad558695b26da6ea7e55f6194a", "status": "affected", "versionType": "git"}, {"version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "lessThan": "41d79f8e2a36622d148719bf7c18b46ac1264284", "status": "affected", "versionType": "git"}, {"version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "lessThan": "f223ebffa185cc8da934333c5a31ff2d4f992dc9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/file.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.11", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c"}, {"url": "https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a"}, {"url": "https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284"}, {"url": "https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9"}], "title": "fs/ntfs3: Initialize new folios before use", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs3/file.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "dd6c81527d097b3b0bf5a15c2fdc9657d045144c", "status": "affected", "version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "versionType": "git"}, {"lessThan": "5a30cc03bde169ad558695b26da6ea7e55f6194a", "status": "affected", "version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "versionType": "git"}, {"lessThan": "41d79f8e2a36622d148719bf7c18b46ac1264284", "status": "affected", "version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "versionType": "git"}, {"lessThan": "f223ebffa185cc8da934333c5a31ff2d4f992dc9", "status": "affected", "version": "584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs3/file.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A05DCA5C-0E7E-47B5-899A-41DDF296199E", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Initialize new folios before use\n\nKMSAN reports an uninitialized value in longest_match_std(), invoked\nfrom ntfs_compress_write(). When new folios are allocated without being\nmarked uptodate and ni_read_frame() is skipped because the caller expects\nthe frame to be completely overwritten, some reserved folios may remain\nonly partially filled, leaving the rest memory uninitialized."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs/ntfs3: Inicializar nuevos folios antes de su uso\n\nKMSAN informa un valor no inicializado en longest_match_std(), invocado desde ntfs_compress_write(). Cuando se asignan nuevos folios sin ser marcados como actualizados y ni_read_frame() se omite porque el llamador espera que el marco sea completamente sobrescrito, algunos folios reservados pueden permanecer solo parcialmente llenos, dejando el resto de la memoria sin inicializar."}], "id": "CVE-2025-71311", "lastModified": "2026-10-14T13:10:00.187", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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": "2026-05-27T14:16:43.627", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: fs/ntfs3: Initialize new folios before use", "id": "2481929", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481929"}, "csaw": false, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel's `fs/ntfs3` component. When new memory pages (folios) are allocated for the NTFS3 file system without being properly initialized, and a read operation is skipped, parts of these folios may contain uninitialized memory. This can lead to a memory corruption vulnerability."], "name": "CVE-2025-71311", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-71311\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71311\nhttps://lore.kernel.org/linux-cve-announce/2026052715-CVE-2025-71311-0a09@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2,dd6c81527d097b3b0bf5a15c2fdc9657d045144c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2,5a30cc03bde169ad558695b26da6ea7e55f6194a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2,41d79f8e2a36622d148719bf7c18b46ac1264284)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2,f223ebffa185cc8da934333c5a31ff2d4f992dc9)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T15:30:27.911398+00:00", "updated": "2026-08-12T01:00:04.023628+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}