FKIE_CVE-2022-50042

Vulnerability from fkie_nvd - Published: 2025-06-18 11:15 - Updated: 2026-06-17 05:22
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: genl: fix error path memory leak in policy dumping If construction of the array of policies fails when recording non-first policy we need to unwind. netlink_policy_dump_add_policy() itself also needs fixing as it currently gives up on error without recording the allocated pointer in the pstate pointer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/249801360db3dec4f73768c502192020bfddeaccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26b6acd365823e99e46be3b27500f5dc235dda5ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/83411c9f05d5a8b637293b3389eca3d378197c04Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b0672895d8be5d19d4b05ac83f807026fc791037Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netlink/genetlink.c",
            "net/netlink/policy.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "83411c9f05d5a8b637293b3389eca3d378197c04",
              "status": "affected",
              "version": "50a896cf2d6f34e884a00139d6e6012c9833ace3",
              "versionType": "git"
            },
            {
              "lessThan": "b0672895d8be5d19d4b05ac83f807026fc791037",
              "status": "affected",
              "version": "50a896cf2d6f34e884a00139d6e6012c9833ace3",
              "versionType": "git"
            },
            {
              "lessThan": "26b6acd365823e99e46be3b27500f5dc235dda5e",
              "status": "affected",
              "version": "50a896cf2d6f34e884a00139d6e6012c9833ace3",
              "versionType": "git"
            },
            {
              "lessThan": "249801360db3dec4f73768c502192020bfddeacc",
              "status": "affected",
              "version": "50a896cf2d6f34e884a00139d6e6012c9833ace3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netlink/genetlink.c",
            "net/netlink/policy.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.138",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E7161656-CBFF-491E-A7B0-8E043F70415A",
              "versionEndExcluding": "5.10.138",
              "versionStartIncluding": "5.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D5744A03-DA40-4A78-9063-13179361DC6D",
              "versionEndExcluding": "5.15.63",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0E669300-DA42-4ACD-86D8-68BE5F29FB88",
              "versionEndExcluding": "5.19.4",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: genl: fix error path memory leak in policy dumping\n\nIf construction of the array of policies fails when recording\nnon-first policy we need to unwind.\n\nnetlink_policy_dump_add_policy() itself also needs fixing as\nit currently gives up on error without recording the allocated\npointer in the pstate pointer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: genl: corrige error de p\u00e9rdida de memoria de ruta en el volcado de pol\u00edticas Si la construcci\u00f3n de la matriz de pol\u00edticas falla cuando se registra una pol\u00edtica que no es la primera, debemos desenrollar. netlink_policy_dump_add_policy() en s\u00ed tambi\u00e9n necesita reparaci\u00f3n, ya que actualmente se da por vencido en caso de error sin registrar el puntero asignado en el puntero pstate. "
    }
  ],
  "id": "CVE-2022-50042",
  "lastModified": "2026-06-17T05:22:37.587",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-06-18T11:15:32.673",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/249801360db3dec4f73768c502192020bfddeacc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/26b6acd365823e99e46be3b27500f5dc235dda5e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/83411c9f05d5a8b637293b3389eca3d378197c04"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b0672895d8be5d19d4b05ac83f807026fc791037"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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