CVE-2026-46003 (GCVE-0-2026-46003)
Vulnerability from cvelistv5
Published
2026-05-27 12:55
Modified
2026-06-14 17:47
Severity ?
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.
Impacted products
Vendor Product Version
Linux Linux Version: 0c2204a4ad710d95d348ea006f14ba926e842ffd
Version: 0c2204a4ad710d95d348ea006f14ba926e842ffd
Version: 0c2204a4ad710d95d348ea006f14ba926e842ffd
Version: 0c2204a4ad710d95d348ea006f14ba926e842ffd
Version: 0c2204a4ad710d95d348ea006f14ba926e842ffd
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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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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "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"
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.12.86",
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.86",
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                  "vulnerable": true
                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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": "2026-06-14T17:47:23.215Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4c46413661431aa60fb134cd4ecdf8beaa39f824"
        },
        {
          "url": "https://git.kernel.org/stable/c/4665a29c08e1b36bc9db4814f9dde3d23e8fd1b0"
        },
        {
          "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": {
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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": "2026-06-14T17:47:23.215Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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