CVE-2026-80669

bpf: Disable xfrm_decode_session hook attachment

N/A
Published: August 28, 2026 at 06:49 AM UTC
Updated: August 28, 2026 at 08:32 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.7 ≤ v < 6.1.1785.7 ≤ v < 6.12.975.7 ≤ v < 6.18.405.7 ≤ v < 6.6.1455.7 ≤ v < 7.1.55.7 ≤ v < 7.25.79e4e01dfd3254c7f04f24b7c6b29596bc12332f3
Vendor states this is fixed in 12091470c6b4c1c14b2de12dcbae2ada6cb6d20b (fixed)
Vendor states this is fixed in 1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9 (fixed)
Vendor states this is fixed in 49fa1be621dde8f526d36e5791aded8fafda1e9c (fixed)
Vendor states this is fixed in 4ae780d173ef40d4f7cb76935dc2d55fbf380009 (fixed)
Vendor states this is fixed in 6b44c6660aa1c9b843e450a623ac4a8484919dce (fixed)
Vendor states this is fixed in aa265d47308775c5501073b08133623bcb5421f9 (fixed)
Vendor states this is fixed in 5.7 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card