CVE-2026-80669 (GCVE-0-2026-80669)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:49 – Updated: 2026-08-28 06:49
VLAI
Title
bpf: Disable xfrm_decode_session hook attachment
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 , < aa265d47308775c5501073b08133623bcb5421f9 (git)
Affected: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 , < 6b44c6660aa1c9b843e450a623ac4a8484919dce (git)
Affected: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 , < 4ae780d173ef40d4f7cb76935dc2d55fbf380009 (git)
Affected: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 , < 49fa1be621dde8f526d36e5791aded8fafda1e9c (git)
Affected: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 , < 1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9 (git)
Affected: 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 , < 12091470c6b4c1c14b2de12dcbae2ada6cb6d20b (git)
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Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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    "datePublished": "2026-08-28T06:49:10.511Z",
    "dateReserved": "2026-08-26T14:34:25.782Z",
    "dateUpdated": "2026-08-28T06:49:10.511Z",
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-31T15:08:30+00:00",
      "cve": "CVE-2026-80669",
      "id": "CVE-2026-80669",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Disable xfrm_decode_session hook attachment",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80669.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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