Vulnerability-Lookup

GHSA-23CV-JRM2-R83V

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

Details

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

net: qrtr: ns: Limit the total number of nodes

Currently, the nameserver doesn't limit the number of nodes it handles. This can be an attack vector if a malicious client starts registering random nodes, leading to memory exhaustion.

Hence, limit the maximum number of nodes to 64. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46003"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:18Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Limit the total number of nodes\n\nCurrently, the nameserver doesn\u0027t limit the number of nodes it handles.\nThis can be an attack vector if a malicious client starts registering\nrandom nodes, leading to memory exhaustion.\n\nHence, limit the maximum number of nodes to 64. Note that, limit of 64 is\nchosen based on the current platform requirements. If requirement changes\nin the future, this limit can be increased.",
  "id": "GHSA-23cv-jrm2-r83v",
  "modified": "2026-05-27T15:33:20Z",
  "published": "2026-05-27T15:33:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46003"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27d5e84e810b0849d08b9aec68e48570461ce313"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cf6d5e5e3b804a44692fbf548a5179442e2e923"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8022876894d09ae485b499058c3357da683bcc5d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46003 (GCVE-0-2026-46003)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:55 – Updated: 2026-05-27 12:55

Title

net: qrtr: ns: Limit the total number of nodes

Summary

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the total number of nodes Currently, the nameserver doesn't limit the number of nodes it handles. This can be an attack vector if a malicious client starts registering random nodes, leading to memory exhaustion. Hence, limit the maximum number of nodes to 64. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/4c46413661431aa60…
https://git.kernel.org/stable/c/4665a29c08e1b36bc…
https://git.kernel.org/stable/c/5cf6d5e5e3b804a44…
https://git.kernel.org/stable/c/8022876894d09ae48…
https://git.kernel.org/stable/c/27d5e84e810b0849d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 4c46413661431aa60fb134cd4ecdf8beaa39f824 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 5cf6d5e5e3b804a44692fbf548a5179442e2e923 (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 8022876894d09ae485b499058c3357da683bcc5d (git) Affected: 0c2204a4ad710d95d348ea006f14ba926e842ffd , < 27d5e84e810b0849d08b9aec68e48570461ce313 (git)
Linux	Linux	Affected: 5.7 Unaffected: 0 , < 5.7 (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-rc1 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/qrtr/ns.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
              "versionType": "git"
            },
            {
              "lessThan": "4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0",
              "status": "affected",
              "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
              "versionType": "git"
            },
            {
              "lessThan": "5cf6d5e5e3b804a44692fbf548a5179442e2e923",
              "status": "affected",
              "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
              "versionType": "git"
            },
            {
              "lessThan": "8022876894d09ae485b499058c3357da683bcc5d",
              "status": "affected",
              "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
              "versionType": "git"
            },
            {
              "lessThan": "27d5e84e810b0849d08b9aec68e48570461ce313",
              "status": "affected",
              "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/qrtr/ns.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.7",
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                },
                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Limit the total number of nodes\n\nCurrently, the nameserver doesn\u0027t limit the number of nodes it handles.\nThis can be an attack vector if a malicious client starts registering\nrandom nodes, leading to memory exhaustion.\n\nHence, limit the maximum number of nodes to 64. Note that, limit of 64 is\nchosen based on the current platform requirements. If requirement changes\nin the future, this limit can be increased."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:55:59.509Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824"
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        },
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          "url": "https://git.kernel.org/stable/c/5cf6d5e5e3b804a44692fbf548a5179442e2e923"
        },
        {
          "url": "https://git.kernel.org/stable/c/8022876894d09ae485b499058c3357da683bcc5d"
        },
        {
          "url": "https://git.kernel.org/stable/c/27d5e84e810b0849d08b9aec68e48570461ce313"
        }
      ],
      "title": "net: qrtr: ns: Limit the total number of nodes",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46003",
    "datePublished": "2026-05-27T12:55:59.509Z",
    "dateReserved": "2026-05-13T15:03:33.091Z",
    "dateUpdated": "2026-05-27T12:55:59.509Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-23CV-JRM2-R83V

CVE-2026-46003 (GCVE-0-2026-46003)

Tags

Sightings

Nomenclature