Not yet scoredPublished Aug 28, 2026

CVE-2026-80669bpf: Disable xfrm_decode_session hook attachment

Updated under an hour ago (Oct 26, 2026, 12:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Aug 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 before aa265d47308775c5501073b08133623bcb5421f9; 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 builds before 6b44c6660aa1c9b843e450a623ac4a8484919dce; 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 builds before 4ae780d173ef40d4f7cb76935dc2d55fbf380009; from 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 before 49fa1be621dde8f526d36e5791aded8fafda1e9c; 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 builds before 1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9; from 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 before 12091470c6b4c1c14b2de12dcbae2ada6cb6d20b	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.