CVE-2026-80669

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 < aa265d47308775c5501073b08133623bcb5421f9affected
LinuxLinux9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 < 6b44c6660aa1c9b843e450a623ac4a8484919dceaffected
LinuxLinux9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 < 4ae780d173ef40d4f7cb76935dc2d55fbf380009affected
LinuxLinux9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 < 49fa1be621dde8f526d36e5791aded8fafda1e9caffected
LinuxLinux9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 < 1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9affected
LinuxLinux9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 < 12091470c6b4c1c14b2de12dcbae2ada6cb6d20baffected
LinuxLinux5.7affected
LinuxLinux0 < 5.7unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References