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CVE-2026-31663 xfrm: hold dev ref until after transport_finish NF_HOOK

🗓️ 24 Apr 2026 14:45:13Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Fix race by delaying device dereference until after transport_finish NF_HOOK during async crypto.

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/xfrm4_input.c",
      "net/ipv6/xfrm6_input.c",
      "net/xfrm/xfrm_input.c"
    ],
    "versions": [
      {
        "version": "acf568ee859f098279eadf551612f103afdacb4e",
        "lessThan": "4236c30b437b80f673b9e08c8fae38b8d471ac9e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "acf568ee859f098279eadf551612f103afdacb4e",
        "lessThan": "0f451b43c88bf2b9c038b414be580efee42e031b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "acf568ee859f098279eadf551612f103afdacb4e",
        "lessThan": "5002beda5cac69d522dc54da0d5d463ed9c963d2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "acf568ee859f098279eadf551612f103afdacb4e",
        "lessThan": "1c428b03840094410c5fb6a5db30640486bbbfcb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "69895c5ea0ca2e8d7de1e6d36965d0ab9730787f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "833760100588acfb267dac4d6a02ab9931237739",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e095ecaec6d94aa2156cceb98a85d409b51190f3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3.2.100",
        "lessThan": "3.3",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "3.16.55",
        "lessThan": "3.17",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.14.24",
        "lessThan": "4.15",
        "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/xfrm4_input.c",
      "net/ipv6/xfrm6_input.c",
      "net/xfrm/xfrm_input.c"
    ],
    "versions": [
      {
        "version": "4.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.94",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.23",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.13",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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