fkie_nvd - fkie_cve-2022-50391

fkie_cve-2022-50391

Vulnerability from fkie_nvd

Published

2025-09-18 14:15

Modified

2025-09-19 16:00

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: fix memory leak in set_mempolicy_home_node system call When encountering any vma in the range with policy other than MPOL_BIND or MPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on the policy just allocated with mpol_dup(). This allows arbitrary users to leak kernel memory.

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mempolicy: fix memory leak in set_mempolicy_home_node system call\n\nWhen encountering any vma in the range with policy other than MPOL_BIND or\nMPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on\nthe policy just allocated with mpol_dup().\n\nThis allows arbitrary users to leak kernel memory."
    }
  ],
  "id": "CVE-2022-50391",
  "lastModified": "2025-09-19T16:00:27.847",
  "metrics": {},
  "published": "2025-09-18T14:15:38.127",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2022-50391 (GCVE-0-2022-50391)

Vulnerability from cvelistv5

Published

2025-09-18 13:33

Modified

2025-09-18 13:33

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33
	https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153
	https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76

Impacted products

Vendor

Product

Version

▼

Linux

Version: c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0
Version: c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0
Version: c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0

Linux

Version: 5.17

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/mempolicy.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4ca0eb6b2f3add8c5daefb726ce57dc95d103d33",
              "status": "affected",
              "version": "c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0",
              "versionType": "git"
            },
            {
              "lessThan": "0ce4cc6d269ddc448a825955b495f662f5d9e153",
              "status": "affected",
              "version": "c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0",
              "versionType": "git"
            },
            {
              "lessThan": "38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76",
              "status": "affected",
              "version": "c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/mempolicy.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.17",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.3",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mempolicy: fix memory leak in set_mempolicy_home_node system call\n\nWhen encountering any vma in the range with policy other than MPOL_BIND or\nMPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on\nthe policy just allocated with mpol_dup().\n\nThis allows arbitrary users to leak kernel memory."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:10.768Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33"
        },
        {
          "url": "https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153"
        },
        {
          "url": "https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76"
        }
      ],
      "title": "mm/mempolicy: fix memory leak in set_mempolicy_home_node system call",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50391",
    "datePublished": "2025-09-18T13:33:10.768Z",
    "dateReserved": "2025-09-17T14:53:06.998Z",
    "dateUpdated": "2025-09-18T13:33:10.768Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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