Vulnerability-Lookup

GHSA-QQPC-5FW9-5Q24

Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-07 00:30

Details

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

netlink: Bounds-check struct nlmsgerr creation

In preparation for FORTIFY_SOURCE doing bounds-check on memcpy(), switch from __nlmsg_put to nlmsg_put(), and explain the bounds check for dealing with the memcpy() across a composite flexible array struct. Avoids this future run-time warning:

memcpy: detected field-spanning write (size 32) of single field "&errmsg->msg" at net/netlink/af_netlink.c:2447 (size 16)

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-2022-49766"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:15:59Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: Bounds-check struct nlmsgerr creation\n\nIn preparation for FORTIFY_SOURCE doing bounds-check on memcpy(),\nswitch from __nlmsg_put to nlmsg_put(), and explain the bounds check\nfor dealing with the memcpy() across a composite flexible array struct.\nAvoids this future run-time warning:\n\n  memcpy: detected field-spanning write (size 32) of single field \"\u0026errmsg-\u003emsg\" at net/netlink/af_netlink.c:2447 (size 16)",
  "id": "GHSA-qqpc-5fw9-5q24",
  "modified": "2025-11-07T00:30:26Z",
  "published": "2025-05-01T15:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49766"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/710d21fdff9a98d621cd4e64167f3ef8af4e2fd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aff4eb16f589c3af322a2582044bca365381fcd6"
    }
  ],
  "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-2022-49766 (GCVE-0-2022-49766)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2026-05-11 19:06

Title

netlink: Bounds-check struct nlmsgerr creation

Summary

In the Linux kernel, the following vulnerability has been resolved: netlink: Bounds-check struct nlmsgerr creation In preparation for FORTIFY_SOURCE doing bounds-check on memcpy(), switch from __nlmsg_put to nlmsg_put(), and explain the bounds check for dealing with the memcpy() across a composite flexible array struct. Avoids this future run-time warning: memcpy: detected field-spanning write (size 32) of single field "&errmsg->msg" at net/netlink/af_netlink.c:2447 (size 16)

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

2 references

URL	Tags
https://git.kernel.org/stable/c/aff4eb16f589c3af3…
https://git.kernel.org/stable/c/710d21fdff9a98d62…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < aff4eb16f589c3af322a2582044bca365381fcd6 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 710d21fdff9a98d621cd4e64167f3ef8af4e2fd1 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 6.0.10 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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JSON

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          "programFiles": [
            "net/netfilter/ipset/ip_set_core.c",
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aff4eb16f589c3af322a2582044bca365381fcd6",
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              "status": "affected",
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              "version": "2.6.12"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            },
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              "versionType": "original_commit_for_fix"
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      ],
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:06:22.149Z",
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    "datePublished": "2025-05-01T14:09:05.569Z",
    "dateReserved": "2025-04-16T07:17:33.804Z",
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    "state": "PUBLISHED"
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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.

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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GHSA-QQPC-5FW9-5Q24

CVE-2022-49766 (GCVE-0-2022-49766)

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