CVE-2026-74398

In the Linux kernel, the following vulnerability has been resolved: ipv6: addrconf: bail out of dadfailure when state is no longer POSTDAD addrconfdadfailure transitions ifp-state from DAD to POSTDAD via addrconfdadend, which drops ifp-lock on return. The lock is re-acquired after...

CVE-2026-74398

CVE-2026-74398 affects the Linux kernel IPv6 address configuration (addrconf) DAD flow. The vulnerability arises when addrconf_dad_failure() transitions an interface’s state from DAD to POSTDAD and, due to a window where the interface lock is dropped, a concurrent ipv6_del_addr() can set ifp->...