Critical 9.8Published Sep 17, 2026

CVE-2026-92489xfrm: Fix skb double-free in xfrm_dev_direct_output()

Updated under an hour ago (Oct 27, 2026, 5:00 AM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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().

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from bfb9b9404a53a72524ce695551755117e9d3deb0 before 621871b696b108026bf4b44ed4085ffa2102f417; from a0395e96831adee8ffa016bf958e4dce9ece656e before bc9297796bfdcc8d9609236e54519a4f38737aac; 5eddd76ec2fd1988f0a3450fde9730b10dd22992 builds before 02deb637e965950148752a304dd1471212dd6470; from 5eddd76ec2fd1988f0a3450fde9730b10dd22992 before 56a347950e661c1a7f8f31c43a2ea53c2323b6f4; 5eddd76ec2fd1988f0a3450fde9730b10dd22992 builds before 2aed51fc58d9ce450e2c116efb956160fd06fa02; d1d673a5bede3767252cff19c0ab1e5387c6f43f; from 6.6.85 before 6.6.157; from 6.12.21 before 6.12.110; and 1 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/621871b696b108026bf4b44ed4085ffa2102f417
https://git.kernel.org/stable/c/bc9297796bfdcc8d9609236e54519a4f38737aac
https://git.kernel.org/stable/c/02deb637e965950148752a304dd1471212dd6470
https://git.kernel.org/stable/c/56a347950e661c1a7f8f31c43a2ea53c2323b6f4
https://git.kernel.org/stable/c/2aed51fc58d9ce450e2c116efb956160fd06fa02

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.