CVE-2025-40074 (GCVE-0-2025-40074)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2025-10-28 11:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv4: start using dst_dev_rcu() Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF. Change ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(), ipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().
References
Impacted products
Vendor Product Version
Linux Linux Version: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36
Version: 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36
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{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/icmp.c",
            "net/ipv4/ip_fragment.c",
            "net/ipv4/ipmr.c",
            "net/ipv4/route.c"
          ],
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          "vendor": "Linux",
          "versions": [
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            "net/ipv4/ipmr.c",
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              "version": "6.18-rc1",
              "versionType": "original_commit_for_fix"
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      ],
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                  "versionEndExcluding": "6.17.3",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: start using dst_dev_rcu()\n\nChange icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.\n\nChange ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(),\nipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-28T11:48:41.202Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc"
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        {
          "url": "https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8"
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      "title": "ipv4: start using dst_dev_rcu()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40074",
    "datePublished": "2025-10-28T11:48:41.202Z",
    "dateReserved": "2025-04-16T07:20:57.160Z",
    "dateUpdated": "2025-10-28T11:48:41.202Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40074\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-28T12:15:41.943\",\"lastModified\":\"2025-10-30T15:05:32.197\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipv4: start using dst_dev_rcu()\\n\\nChange icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.\\n\\nChange ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(),\\nipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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