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CVE-2025-40170 net: use dst_dev_rcu() in sk_setup_caps()

🗓️ 12 Nov 2025 10:46:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

CVE fixed: use destination device rcu for dst local access in setup caps and gso size, and in ig forward paths; hop limit for ipv4 may use destination device net rcu.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/ip.h",
      "include/net/ip6_route.h",
      "include/net/route.h",
      "net/core/sock.c"
    ],
    "versions": [
      {
        "version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
        "lessThan": "5d1be493d1110c9e720b4c51a6e587bb2fb4ac12",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
        "lessThan": "a805729c0091073d8f0415cfa96c7acd1bc17a48",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
        "lessThan": "99a2ace61b211b0be861b07fbaa062fca4b58879",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/ip.h",
      "include/net/ip6_route.h",
      "include/net/route.h",
      "net/core/sock.c"
    ],
    "versions": [
      {
        "version": "4.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.64",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17.3",
        "lessThanOrEqual": "6.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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