net: ife: require ETH_HLEN to be pullable in ife_decode()

{
  "id": "a7f3fd594e0648050c1f94caff9ebee0a0162978a41d8d55bbbcb63a67e189a9",
  "url": "https://osv.dev/vulnerability/CVE-2026-72296",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: ife: require ETH_HLEN to be pullable in ife_decode()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: ife: require ETH_HLEN to be pullable in ife_decode() ife decode may return after making only the outer IFE header and metadata pullable. The caller then passes the decapsulated packet to eth_type_trans(), which expects the inner Ethernet header to be accessible from the linear data area. With a malformed IFE frame, the inner Ethernet header may still be shorter than ETH_HLEN in the linear area, which can lead to a crash in the original code. Fix this by extending the pull check in ife_decode() so that the inner Ethernet header is also guaranteed to be pullable before returning.",
    "evidence": "osv:CVE-2026-72296",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
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    "severity": "critical",
    "structured": {
      "id": "CVE-2026-72296",
      "aliases": [
        "CVE-2026-72296"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
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      "modified": "2026-10-28T02:30:28.369645222Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1cb42ec10294a55380e52e674b3df2b962648242",
        "https://git.kernel.org/stable/c/5526d1997aea6c9bd865ca4d4894b52e799d735c",
        "https://git.kernel.org/stable/c/70013f9163bef7fbd9fa62f81cf91b2a7ba66163",
        "https://git.kernel.org/stable/c/8c8818e52fddb247ff3214622401a4de6ff8482e",
        "https://git.kernel.org/stable/c/9406f6012b7343661efb516a11c62d4db2b62f75",
        "https://git.kernel.org/stable/c/9433578bff9c100c466a6354574892e55293cb8f",
        "https://git.kernel.org/stable/c/b69ad768cd4a2ef4e07c18492ae85438ed17c7cb",
        "https://git.kernel.org/stable/c/be272e159dfe1207b67332ad6e17adcf59b4ea4b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72296.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72296",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72296.json"
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    "related_cves": [
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        "value": "CVE-2026-72296",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495326,
  "published_at": "2026-08-15T05:55:17.25+00:00"
}