Vulnerability-Lookup

GHSA-QX3X-JWR3-P8VV

Vulnerability from github – Published: 2026-08-28 09:31 – Updated: 2026-08-28 09:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80669"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T08:16:52Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-qx3x-jwr3-p8vv",
  "modified": "2026-08-28T09:31:48Z",
  "published": "2026-08-28T09:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80669"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-08-28 06:49 – Updated: 2026-08-28 06:49

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

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/aa265d47308775c55…
https://git.kernel.org/stable/c/6b44c6660aa1c9b84…
https://git.kernel.org/stable/c/4ae780d173ef40d4f…
https://git.kernel.org/stable/c/49fa1be621dde8f52…
https://git.kernel.org/stable/c/1bb3b6a5c3c5cc814…
https://git.kernel.org/stable/c/12091470c6b4c1c14…

Impacted products

2 products

Vendor	Product	Version
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)
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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              "status": "unaffected",
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    "datePublished": "2026-08-28T06:49:10.511Z",
    "dateReserved": "2026-08-26T14:34:25.782Z",
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}

Sightings

Author	Source	Type	Date	Other

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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