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CVE-2026-63912 xfrm: esp: restore combined single-frag length gate

🗓️ 19 Jul 2026 14:55:17Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Fixes xfrm ESP single-fragment gate; rejects page frag path when combined length exceeds a page on IP version four and IP version six.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/esp4.c",
      "net/ipv6/esp6.c"
    ],
    "versions": [
      {
        "version": "c075c3ea031757f8ea2d34567565b61a868c08d5",
        "lessThan": "566295735530ee513326049b0540f32ec050bf2e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a583f2f3c8788bffd7fd7baeb76bd6d80543d7ea",
        "lessThan": "5d7ab86e2b6bc23054616bf6ac562013bf60af8c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5bd8baab087dff657e05387aee802e70304cc813",
        "lessThan": "36519e3d941fc99d3b52c134dbaf311f987a4708",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5bd8baab087dff657e05387aee802e70304cc813",
        "lessThan": "322e48187e0245ab2fff6fec2220b0cae677dbec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5bd8baab087dff657e05387aee802e70304cc813",
        "lessThan": "b84091ceddc9f133229dceab3ccc930bf27f9cba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5bd8baab087dff657e05387aee802e70304cc813",
        "lessThan": "c093468aea8277f77272a4f199b2e15e19cabb59",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5bd8baab087dff657e05387aee802e70304cc813",
        "lessThan": "65f3b3fc2347b89fe21db1e92c7681368415f095",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5bd8baab087dff657e05387aee802e70304cc813",
        "lessThan": "dfa0d7b0ff1eb6b2c416b8fdb9b4f2cefba57a40",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c66b0c95bb0aa7652ba1eba293d0d5993b35a38",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ef6f83df1209a7d9bd1c605a62457d4c00f9179e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3defefd22ad5fbbe639b6157fb7e6311b2bf333d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b657030870bb5351c5b1e84d4e9f186da6ca0496",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.113",
        "lessThan": "5.10.259",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.36",
        "lessThan": "5.15.210",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.14.288",
        "lessThan": "4.15",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.19.252",
        "lessThan": "4.20",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.4.205",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.17.5",
        "lessThan": "5.18",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/esp4.c",
      "net/ipv6/esp6.c"
    ],
    "versions": [
      {
        "version": "5.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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