CVE-2026-80669 (GCVE-0-2026-80669)
Vulnerability from cvelistv5
Published
2026-08-28 06:49
Modified
2026-08-28 06:49
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Disable xfrm_decode_session hook attachment BPF LSM programs can currently attach to xfrm_decode_session(). That hook may return an error, but security_skb_classify_flow() calls it from a void path and triggers BUG_ON() if an error is returned. Disable BPF attachment to the hook to prevent a BPF LSM program from turning packet classification into a full panic.
References
Impacted products
Vendor Product Version
Linux Linux Version: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3
Version: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3
Version: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3
Version: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3
Version: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3
Version: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3
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{
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable xfrm_decode_session hook attachment\n\nBPF LSM programs can currently attach to xfrm_decode_session(). That\nhook may return an error, but security_skb_classify_flow() calls it\nfrom a void path and triggers BUG_ON() if an error is returned.\n\nDisable BPF attachment to the hook to prevent a BPF LSM program from\nturning packet classification into a full panic."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:49:10.511Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9"
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          "url": "https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009"
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          "url": "https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c"
        },
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        {
          "url": "https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b"
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      "title": "bpf: Disable xfrm_decode_session hook attachment",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80669",
    "datePublished": "2026-08-28T06:49:10.511Z",
    "dateReserved": "2026-08-26T14:34:25.782Z",
    "dateUpdated": "2026-08-28T06:49:10.511Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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