Vulnerability-Lookup

GHSA-PC3V-MPGJ-WXWQ

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-19 15:33

Details

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

net: qrtr: ns: Free the node during ctrl_cmd_bye()

A node sends the BYE packet when it is about to go down. So the nameserver should advertise the removal of the node to all remote and local observers and free the node finally. But currently, the nameserver doesn't free the node memory even after processing the BYE packet. This causes the node memory to leak.

Hence, remove the node from Xarray list and free the node memory during both success and failure case of ctrl_cmd_bye().

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-2026-46038"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:23Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Free the node during ctrl_cmd_bye()\n\nA node sends the BYE packet when it is about to go down. So the nameserver\nshould advertise the removal of the node to all remote and local observers\nand free the node finally. But currently, the nameserver doesn\u0027t free the\nnode memory even after processing the BYE packet. This causes the node\nmemory to leak.\n\nHence, remove the node from Xarray list and free the node memory during\nboth success and failure case of ctrl_cmd_bye().",
  "id": "GHSA-pc3v-mpgj-wxwq",
  "modified": "2026-06-19T15:33:13Z",
  "published": "2026-05-27T15:33:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46038"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/076e4b162d6caba12c229e7f262df5b6881162b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/154fc7fe3f62c46891c3c4302f4b5b5391c932e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25d580a46b079a7963ff024a5195e547baf12b64"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65932f5102bb5377db36c8a4f0c28179a1967a9a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68efba36446a7774ea5b971257ade049272a07ac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c9cca46acb6f22e63f015ea7b2ed6032d2badf5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5a454f3364877b22f0e5a165df8b3702ff96ae7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff78ed177a66763085e3214d6fbe13ca8f0b3f11"
    }
  ],
  "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-2026-46038 (GCVE-0-2026-46038)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:56 – Updated: 2026-06-19 11:59

Title

net: qrtr: ns: Free the node during ctrl_cmd_bye()

Summary

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Free the node during ctrl_cmd_bye() A node sends the BYE packet when it is about to go down. So the nameserver should advertise the removal of the node to all remote and local observers and free the node finally. But currently, the nameserver doesn't free the node memory even after processing the BYE packet. This causes the node memory to leak. Hence, remove the node from Xarray list and free the node memory during both success and failure case of ctrl_cmd_bye().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/6c9cca46acb6f22e6…
https://git.kernel.org/stable/c/a5a454f3364877b22…
https://git.kernel.org/stable/c/25d580a46b079a796…
https://git.kernel.org/stable/c/ff78ed177a6676308…
https://git.kernel.org/stable/c/65932f5102bb5377d…
https://git.kernel.org/stable/c/154fc7fe3f62c4689…
https://git.kernel.org/stable/c/076e4b162d6caba12…
https://git.kernel.org/stable/c/68efba36446a7774e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 6c9cca46acb6f22e63f015ea7b2ed6032d2badf5 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < a5a454f3364877b22f0e5a165df8b3702ff96ae7 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 25d580a46b079a7963ff024a5195e547baf12b64 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < ff78ed177a66763085e3214d6fbe13ca8f0b3f11 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 65932f5102bb5377db36c8a4f0c28179a1967a9a (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 154fc7fe3f62c46891c3c4302f4b5b5391c932e6 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 076e4b162d6caba12c229e7f262df5b6881162b0 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 68efba36446a7774ea5b971257ade049272a07ac (git)
Linux	Linux	Affected: 5.7 Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.86 , ≤ 6.12.* (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.