CVE-2026-72450

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixlen e.g. 128 matched against IPv4 flow when XFRMSTATEAFUNSPEC is set...

kernel: xfrm: validate new SA's prefixlen using SA family when sel.family is unset

A flaw was found in the Linux kernel's xfrm IPSec framework component. A local attacker with low privileges could exploit improper validation of the Security Association SA prefix length. This issue arises when the selector family is unspecified, but the SA family is set, leading to a bypass of...

kernel: xfrm: validate new SA's prefixlen using SA family when sel.family is unset

A flaw was found in the Linux kernel's xfrm IPSec framework component. A local attacker with low privileges could exploit improper validation of the Security Association SA prefix length. This issue arises when the selector family is unspecified, but the SA family is set, leading to a bypass of...