CVE-2026-92489

critical

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix skb double-free in xfrm_dev_direct_output() A return value other than 1 from local_out() means that the skb has been consumed or its ownership was transferred. xfrm_dev_direct_output() nevertheless frees the skb on this path, causing a double-free when netfilter drops the packet and invalidating any other owner. Return the local_out() result directly, matching the ownership handling in xfrm_output_resume().

References

https://git.kernel.org/stable/c/bc9297796bfdcc8d9609236e54519a4f38737aac

https://git.kernel.org/stable/c/621871b696b108026bf4b44ed4085ffa2102f417

https://git.kernel.org/stable/c/56a347950e661c1a7f8f31c43a2ea53c2323b6f4

https://git.kernel.org/stable/c/2aed51fc58d9ce450e2c116efb956160fd06fa02

https://git.kernel.org/stable/c/02deb637e965950148752a304dd1471212dd6470

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-09-18

Risk Information

CVSS v2

Base Score: 10

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

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00168