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CVE-2025-71311

📛 CVE Title

fs/ntfs3: Initialize new folios before use

⬇ Download JSON ⚠ View as Threat

Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longest_match_std(), invoked from ntfs_compress_write(). When new folios are allocated without being marked uptodate and ni_read_frame() is skipped because the caller expects the frame to be completely overwritten, some reserved folios may remain only partially filled, leaving the rest memory uninitialized.

Overview

State
PUBLISHED
Assigner (CNA)
Linux
CVSS severity
high
CVSS score
CVSS 7.1 / 10 7.1 7.1 / 10
CVSS vector
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Effective score
7.1 / 10 HIGH source: CNA overview
CWE(s)
—
Reserved
2026-05-27
Published
2026-05-27 12:24 UTC
Last updated
2026-05-27 12:24 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/71xxx/CVE-2025-71311.json
Linked Threat
CVE-2025-71311 — CVE-2025-71311

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-05-27 14:16:43 UTC
NVD last modified
2026-06-25 21:04:05 UTC
NVD CVSS v3.1
CVSS 5.5 / 10 5.5 5.5 / 10 MEDIUM source: nvd@nist.gov
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
1.8 / 10
Impact subscore
3.6 / 10
EPSS score
0.0015 (probability of exploitation in next 30 days)
EPSS percentile
5.11% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26

NVD-assigned CWE(s): CWE-908 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-07-27 11:04 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2025-209965
Assigner
Linux
Published
May 27, 2026, 12:24:02 PM
Updated
May 27, 2026, 12:24:02 PM
EUVD base score
0.0 / 10
EUVD-reported EPSS
0.1600
Vendors
Linux
Products
Linux (patch: 6.12.75)
Linux (patch: 6.18.14)
Linux (584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 <f223ebffa185cc8da934333c5a31ff2d4f992dc9)
Linux (584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 <5a30cc03bde169ad558695b26da6ea7e55f6194a)
Linux (6.11)
Linux (patch: 6.19.4)
Linux (584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 <41d79f8e2a36622d148719bf7c18b46ac1264284)
Linux (patch: 7.0)
Linux (584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 <dd6c81527d097b3b0bf5a15c2fdc9657d045144c)
Linux (patch: 0)
Aliases
GHSA-55mq-jw86-3h27

ENISA description: In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longest_match_std(), invoked from ntfs_compress_write(). When new folios are allocated without being marked uptodate and ni_read_frame() is skipped because the caller expects the frame to be completely overwritten, some reserved folios may remain only partially filled, leaving the rest memory uninitialized.

EUVD references (4)

Affected products (2)
VendorProductVersionsPlatforms
Linux Linux 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (affected), 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (affected), 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (affected), 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (affected) —
Linux Linux 6.11 (affected), 0 (unaffected), 6.12.75 (unaffected), 6.18.14 (unaffected), 6.19.4 (unaffected), 7.0 (unaffected) —

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

Web references (7)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

NVD-tagged references (4)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (18)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2025-71311.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.75",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:24:02.532Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71311",
    "datePublished": "2026-05-27T12:24:02.532Z",
    "dateReserved": "2026-05-27T12:23:27.414Z",
    "dateUpdated": "2026-05-27T12:24:02.532Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}