CVE-2026-80669
N/AIn 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.
NO EXPLOITATION SIGNALS
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 7th percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-80669/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-80669/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9
- https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce
- https://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009
- https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c
- https://git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9
- https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b