CVE-2026-92489

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxbfb9b9404a53a72524ce695551755117e9d3deb0 < 621871b696b108026bf4b44ed4085ffa2102f417affected
LinuxLinuxa0395e96831adee8ffa016bf958e4dce9ece656e < bc9297796bfdcc8d9609236e54519a4f38737aacaffected
LinuxLinux5eddd76ec2fd1988f0a3450fde9730b10dd22992 < 02deb637e965950148752a304dd1471212dd6470affected
LinuxLinux5eddd76ec2fd1988f0a3450fde9730b10dd22992 < 56a347950e661c1a7f8f31c43a2ea53c2323b6f4affected
LinuxLinux5eddd76ec2fd1988f0a3450fde9730b10dd22992 < 2aed51fc58d9ce450e2c116efb956160fd06fa02affected
LinuxLinuxd1d673a5bede3767252cff19c0ab1e5387c6f43faffected
LinuxLinux6.6.85 < 6.6.157affected
LinuxLinux6.12.21 < 6.12.110affected
LinuxLinux6.13.9 < 6.14affected
LinuxLinux6.14affected
LinuxLinux0 < 6.14unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References