CVE-2026-64572 ipv4: fib: free fib_alias with kfree_rcu() on insert error path

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/fib_trie.c"
    ],
    "versions": [
      {
        "version": "a6c76c17df021b141b0d306828c9fe4ba2d2717c",
        "lessThan": "8150b5365f026e72250cacc527ea00be30f40105",
        "status": "affected",
        "versionType": "git"
      },
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        "version": "a6c76c17df021b141b0d306828c9fe4ba2d2717c",
        "lessThan": "d007056868723de9c0cc3f5ffaad47a8d468b9a4",
        "status": "affected",
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      },
      {
        "version": "a6c76c17df021b141b0d306828c9fe4ba2d2717c",
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        "status": "affected",
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      },
      {
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        "lessThan": "b8d2ea75c76abcd0d72679c2f488271f573e32fb",
        "status": "affected",
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      },
      {
        "version": "a6c76c17df021b141b0d306828c9fe4ba2d2717c",
        "lessThan": "f2f152e94a67bc746afaf05a1b2702c195553112",
        "status": "affected",
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      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/fib_trie.c"
    ],
    "versions": [
      {
        "version": "5.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc4",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]