by Kastro CVE-2026-92489
Linux Linux — xfrm: Fix skb double-free in xfrm_dev_direct_output()
Description · from the CVE record
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().
Affected
ProductAffectedFixed inSource
Linuxbfb9b9404a53a72524ce695551755117e9d3deb0 – < 621871b696b108026bf4b44ed4085ffa2102f417621871b696b108026bf4b44ed4085ffa2102f417CNA
Linuxa0395e96831adee8ffa016bf958e4dce9ece656e – < bc9297796bfdcc8d9609236e54519a4f38737aacbc9297796bfdcc8d9609236e54519a4f38737aacCNA
Linux5eddd76ec2fd1988f0a3450fde9730b10dd22992 – < 02deb637e965950148752a304dd1471212dd647002deb637e965950148752a304dd1471212dd6470CNA
Linux5eddd76ec2fd1988f0a3450fde9730b10dd22992 – < 56a347950e661c1a7f8f31c43a2ea53c2323b6f456a347950e661c1a7f8f31c43a2ea53c2323b6f4CNA
Linux5eddd76ec2fd1988f0a3450fde9730b10dd22992 – < 2aed51fc58d9ce450e2c116efb956160fd06fa022aed51fc58d9ce450e2c116efb956160fd06fa02CNA
Linuxd1d673a5bede3767252cff19c0ab1e5387c6f43f–CNA
Linux6.6.85 – < 6.6.1576.6.157CNA
Linux6.12.21 – < 6.12.1106.12.110CNA
Linux6.13.9 – < 6.146.14CNA
Linux6.146.6.157CNA
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H