CVE-2025-21766 (GCVE-0-2025-21766)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2025-05-04 13:06
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv4: use RCU protection in __ip_rt_update_pmtu() __ip_rt_update_pmtu() must use RCU protection to make sure the net structure it reads does not disappear.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Version: 2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Version: 2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Version: 2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Version: 2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Version: 2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Version: f415c264176e6095e9dee823e09c5bdd0ee0d337
Version: 98776a365da509ad923083ae54b38ee521c52742
Version: 860e2cc78c697c95bc749abb20047239fa1722ea
Version: 2b1be6c925cdf4638811765a9160796291494b89
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/route.c"
          ],
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        },
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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": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.179",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.129",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.179",
                  "versionStartIncluding": "5.9",
                  "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\nipv4: use RCU protection in __ip_rt_update_pmtu()\n\n__ip_rt_update_pmtu() must use RCU protection to make\nsure the net structure it reads does not disappear."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T13:06:29.555Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ce3c6165fce0f06305c806696882a3ad4b90e33f"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea07480b23225942208f1b754fea1e7ec486d37e"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b1766d1ff5fe496aabe9fc5f4e34e53f35c11c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/4583748b65dee4d61bd50a2214715b4237bc152a"
        },
        {
          "url": "https://git.kernel.org/stable/c/a39f61d212d822b3062d7f70fa0588e50e55664e"
        },
        {
          "url": "https://git.kernel.org/stable/c/139512191bd06f1b496117c76372b2ce372c9a41"
        }
      ],
      "title": "ipv4: use RCU protection in __ip_rt_update_pmtu()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21766",
    "datePublished": "2025-02-27T02:18:16.570Z",
    "dateReserved": "2024-12-29T08:45:45.762Z",
    "dateUpdated": "2025-05-04T13:06:29.555Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21766\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-27T03:15:17.273\",\"lastModified\":\"2025-03-13T13:15:53.827\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv4: use RCU protection in __ip_rt_update_pmtu()\\n\\n__ip_rt_update_pmtu() must use RCU protection to make\\nsure the net structure it reads does not disappear.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv4: usar protecci\u00f3n RCU en __ip_rt_update_pmtu() __ip_rt_update_pmtu() debe usar protecci\u00f3n RCU para asegurarse de que la estructura de red que lee no desaparezca.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/139512191bd06f1b496117c76372b2ce372c9a41\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4583748b65dee4d61bd50a2214715b4237bc152a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9b1766d1ff5fe496aabe9fc5f4e34e53f35c11c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a39f61d212d822b3062d7f70fa0588e50e55664e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ce3c6165fce0f06305c806696882a3ad4b90e33f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ea07480b23225942208f1b754fea1e7ec486d37e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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