CVE-2026-80669

medium

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/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

Details

Source: Mitre, NVD

Published: 2026-08-28

Updated: 2026-08-28

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00172