Vulnerability-Lookup

GHSA-9RC4-73XM-7X5M

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-13 21:31

Details

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50042"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:32Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-9rc4-73xm-7x5m",
  "modified": "2025-11-13T21:31:18Z",
  "published": "2025-06-18T12:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50042"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/249801360db3dec4f73768c502192020bfddeacc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26b6acd365823e99e46be3b27500f5dc235dda5e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83411c9f05d5a8b637293b3389eca3d378197c04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0672895d8be5d19d4b05ac83f807026fc791037"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-50042 (GCVE-0-2022-50042)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-05-11 19:11

Title

net: genl: fix error path memory leak in policy dumping

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.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7063 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/83411c9f05d5a8b63…
https://git.kernel.org/stable/c/b0672895d8be5d19d…
https://git.kernel.org/stable/c/26b6acd365823e99e…
https://git.kernel.org/stable/c/249801360db3dec4f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 50a896cf2d6f34e884a00139d6e6012c9833ace3 , < 83411c9f05d5a8b637293b3389eca3d378197c04 (git) Affected: 50a896cf2d6f34e884a00139d6e6012c9833ace3 , < b0672895d8be5d19d4b05ac83f807026fc791037 (git) Affected: 50a896cf2d6f34e884a00139d6e6012c9833ace3 , < 26b6acd365823e99e46be3b27500f5dc235dda5e (git) Affected: 50a896cf2d6f34e884a00139d6e6012c9833ace3 , < 249801360db3dec4f73768c502192020bfddeacc (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.138 , ≤ 5.10.* (semver) Unaffected: 5.15.63 , ≤ 5.15.* (semver) Unaffected: 5.19.4 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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",
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            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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            "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
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            {
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
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        "dateUpdated": "2026-05-11T19:11:43.271Z",
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    "datePublished": "2025-06-18T11:01:43.264Z",
    "dateReserved": "2025-06-18T10:57:27.398Z",
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}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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