Vulnerability Description
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
- https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b
- https://git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9
- https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c
- https://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009
- https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce
- https://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9
FAQ
What is CVE-2026-80669?
CVE-2026-80669 is a documented vulnerability. 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 ret...
How severe is CVE-2026-80669?
CVSS scoring is not yet available for CVE-2026-80669. Check NVD for updates.
Is there a patch for CVE-2026-80669?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.