Vulnerability-Lookup

GHSA-55MQ-JW86-3H27

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71311"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:16:43Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-55mq-jw86-3h27",
  "modified": "2026-05-27T15:33:11Z",
  "published": "2026-05-27T15:33:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71311"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-71311 (GCVE-0-2025-71311)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:24 – Updated: 2026-05-27 12:24

Title

fs/ntfs3: Initialize new folios before use

Summary

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.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/dd6c81527d097b3b0…
https://git.kernel.org/stable/c/5a30cc03bde169ad5…
https://git.kernel.org/stable/c/41d79f8e2a36622d1…
https://git.kernel.org/stable/c/f223ebffa185cc8da…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 , < dd6c81527d097b3b0bf5a15c2fdc9657d045144c (git) Affected: 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 , < 5a30cc03bde169ad558695b26da6ea7e55f6194a (git) Affected: 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 , < 41d79f8e2a36622d148719bf7c18b46ac1264284 (git) Affected: 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 , < f223ebffa185cc8da934333c5a31ff2d4f992dc9 (git)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "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:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.11",
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                },
                {
                  "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": [
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          "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",
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  "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"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-55MQ-JW86-3H27

CVE-2025-71311 (GCVE-0-2025-71311)

Tags

Sightings

Nomenclature