github - ghsa-pf5x-wpf2-8vp9

GHSA-PF5X-WPF2-8VP9

Vulnerability from github – Published: 2025-11-13 00:30 – Updated: 2025-11-13 00:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ext4: verify orphan file size is not too big

In principle orphan file can be arbitrarily large. However orphan replay needs to traverse it all and we also pin all its buffers in memory. Thus filesystems with absurdly large orphan files can lead to big amounts of memory consumed. Limit orphan file size to a sane value and also use kvmalloc() for allocating array of block descriptor structures to avoid large order allocations for sane but large orphan files.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40179"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-12T22:15:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: verify orphan file size is not too big\n\nIn principle orphan file can be arbitrarily large. However orphan replay\nneeds to traverse it all and we also pin all its buffers in memory. Thus\nfilesystems with absurdly large orphan files can lead to big amounts of\nmemory consumed. Limit orphan file size to a sane value and also use\nkvmalloc() for allocating array of block descriptor structures to avoid\nlarge order allocations for sane but large orphan files.",
  "id": "GHSA-pf5x-wpf2-8vp9",
  "modified": "2025-11-13T00:30:17Z",
  "published": "2025-11-13T00:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40179"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a6ce20c156442a4ce2a404747bb0fb05d54eeb3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b9da798ff0f4d026c5f0f815047393ebe7d8859"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/304fc34ff6fc8261138fd81f119e024ac3a129e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/566a1d6084563bd07433025aa23bcea4427de107"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95a21611b14ae0a401720645245a8db16f040995"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2d803fab8a6c6a874277cb80156dc114db91921"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-40179 (GCVE-0-2025-40179)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2025-12-01 06:19

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: verify orphan file size is not too big In principle orphan file can be arbitrarily large. However orphan replay needs to traverse it all and we also pin all its buffers in memory. Thus filesystems with absurdly large orphan files can lead to big amounts of memory consumed. Limit orphan file size to a sane value and also use kvmalloc() for allocating array of block descriptor structures to avoid large order allocations for sane but large orphan files.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/95a21611b14ae0a40…
	https://git.kernel.org/stable/c/566a1d6084563bd07…
	https://git.kernel.org/stable/c/304fc34ff6fc82611…
	https://git.kernel.org/stable/c/a2d803fab8a6c6a87…
	https://git.kernel.org/stable/c/2b9da798ff0f4d026…
	https://git.kernel.org/stable/c/0a6ce20c156442a4c…

Impacted products

Vendor

Product

Version

Linux

Affected: 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 , < 95a21611b14ae0a401720645245a8db16f040995 (git)
Affected: 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 , < 566a1d6084563bd07433025aa23bcea4427de107 (git)
Affected: 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 , < 304fc34ff6fc8261138fd81f119e024ac3a129e9 (git)
Affected: 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 , < a2d803fab8a6c6a874277cb80156dc114db91921 (git)
Affected: 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 , < 2b9da798ff0f4d026c5f0f815047393ebe7d8859 (git)
Affected: 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 , < 0a6ce20c156442a4ce2a404747bb0fb05d54eeb3 (git)

Linux

Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.195 , ≤ 5.15.* (semver)
Unaffected: 6.1.157 , ≤ 6.1.* (semver)
Unaffected: 6.6.113 , ≤ 6.6.* (semver)
Unaffected: 6.12.54 , ≤ 6.12.* (semver)
Unaffected: 6.17.4 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/orphan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "95a21611b14ae0a401720645245a8db16f040995",
              "status": "affected",
              "version": "02f310fcf47fa9311d6ba2946a8d19e7d7d11f37",
              "versionType": "git"
            },
            {
              "lessThan": "566a1d6084563bd07433025aa23bcea4427de107",
              "status": "affected",
              "version": "02f310fcf47fa9311d6ba2946a8d19e7d7d11f37",
              "versionType": "git"
            },
            {
              "lessThan": "304fc34ff6fc8261138fd81f119e024ac3a129e9",
              "status": "affected",
              "version": "02f310fcf47fa9311d6ba2946a8d19e7d7d11f37",
              "versionType": "git"
            },
            {
              "lessThan": "a2d803fab8a6c6a874277cb80156dc114db91921",
              "status": "affected",
              "version": "02f310fcf47fa9311d6ba2946a8d19e7d7d11f37",
              "versionType": "git"
            },
            {
              "lessThan": "2b9da798ff0f4d026c5f0f815047393ebe7d8859",
              "status": "affected",
              "version": "02f310fcf47fa9311d6ba2946a8d19e7d7d11f37",
              "versionType": "git"
            },
            {
              "lessThan": "0a6ce20c156442a4ce2a404747bb0fb05d54eeb3",
              "status": "affected",
              "version": "02f310fcf47fa9311d6ba2946a8d19e7d7d11f37",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/orphan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.195",
                  "versionStartIncluding": "5.15",
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                },
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                },
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                },
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                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: verify orphan file size is not too big\n\nIn principle orphan file can be arbitrarily large. However orphan replay\nneeds to traverse it all and we also pin all its buffers in memory. Thus\nfilesystems with absurdly large orphan files can lead to big amounts of\nmemory consumed. Limit orphan file size to a sane value and also use\nkvmalloc() for allocating array of block descriptor structures to avoid\nlarge order allocations for sane but large orphan files."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:19:35.872Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/95a21611b14ae0a401720645245a8db16f040995"
        },
        {
          "url": "https://git.kernel.org/stable/c/566a1d6084563bd07433025aa23bcea4427de107"
        },
        {
          "url": "https://git.kernel.org/stable/c/304fc34ff6fc8261138fd81f119e024ac3a129e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/a2d803fab8a6c6a874277cb80156dc114db91921"
        },
        {
          "url": "https://git.kernel.org/stable/c/2b9da798ff0f4d026c5f0f815047393ebe7d8859"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a6ce20c156442a4ce2a404747bb0fb05d54eeb3"
        }
      ],
      "title": "ext4: verify orphan file size is not too big",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40179",
    "datePublished": "2025-11-12T21:56:24.882Z",
    "dateReserved": "2025-04-16T07:20:57.177Z",
    "dateUpdated": "2025-12-01T06:19:35.872Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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-PF5X-WPF2-8VP9

CVE-2025-40179 (GCVE-0-2025-40179)

Tags

Sightings

Nomenclature