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

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-72296

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-72296

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "70013f9163bef7fbd9fa62f81cf91b2a7ba66163",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "be272e159dfe1207b67332ad6e17adcf59b4ea4b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "8c8818e52fddb247ff3214622401a4de6ff8482e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "9433578bff9c100c466a6354574892e55293cb8f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "1cb42ec10294a55380e52e674b3df2b962648242",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "5526d1997aea6c9bd865ca4d4894b52e799d735c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "b69ad768cd4a2ef4e07c18492ae85438ed17c7cb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ef6980b6becb1afd9d82a4f043749a10ae81bf14",
        "lessThan": "9406f6012b7343661efb516a11c62d4db2b62f75",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/ife/ife.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.6",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.261",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.212",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.178",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.145",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.97",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.40",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/ife/ife.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-72296

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#33007 · Revision 1
Added to Heist Feed
Publisher date
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