github - ghsa-8xqr-g5fm-p394

GHSA-8XQR-G5FM-P394

Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2025-12-30 15:30

Details

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

ext2: Add sanity checks for group and filesystem size

Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount some crafted filesystems with extremely large group counts.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50815"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:15:55Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next2: Add sanity checks for group and filesystem size\n\nAdd sanity check that filesystem size does not exceed the underlying\ndevice size and that group size is big enough so that metadata can fit\ninto it. This avoid trying to mount some crafted filesystems with\nextremely large group counts.",
  "id": "GHSA-8xqr-g5fm-p394",
  "modified": "2025-12-30T15:30:26Z",
  "published": "2025-12-30T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50815"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/321440079763998076b75e0c802524e2218a7d97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40ff52527daec00cf1530c17a95636916ddd3b38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50815 (GCVE-0-2022-50815)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:08 – Updated: 2025-12-30 12:08

Title

ext2: Add sanity checks for group and filesystem size

Summary

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount some crafted filesystems with extremely large group counts.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/40ff52527daec00cf…
	https://git.kernel.org/stable/c/32144007976399807…
	https://git.kernel.org/stable/c/d766f2d1e3e3bd440…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 40ff52527daec00cf1530c17a95636916ddd3b38 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 321440079763998076b75e0c802524e2218a7d97 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2 (git)

Linux

Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext2/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "40ff52527daec00cf1530c17a95636916ddd3b38",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "321440079763998076b75e0c802524e2218a7d97",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ext2/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next2: Add sanity checks for group and filesystem size\n\nAdd sanity check that filesystem size does not exceed the underlying\ndevice size and that group size is big enough so that metadata can fit\ninto it. This avoid trying to mount some crafted filesystems with\nextremely large group counts."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:08:31.554Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/40ff52527daec00cf1530c17a95636916ddd3b38"
        },
        {
          "url": "https://git.kernel.org/stable/c/321440079763998076b75e0c802524e2218a7d97"
        },
        {
          "url": "https://git.kernel.org/stable/c/d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2"
        }
      ],
      "title": "ext2: Add sanity checks for group and filesystem size",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50815",
    "datePublished": "2025-12-30T12:08:31.554Z",
    "dateReserved": "2025-12-30T12:06:07.130Z",
    "dateUpdated": "2025-12-30T12:08:31.554Z",
    "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-8XQR-G5FM-P394

CVE-2022-50815 (GCVE-0-2022-50815)

Tags

Sightings

Nomenclature