In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in l3mdevl3out() l3mdevl3out() can be called without RCU being held: rawsendmsg() ippushpendingframes() ipsendskb() iplocalout() _iplocalout() l3mdevipout() Add rcureadlock() / rcuread_unlock() pair to avoid a potential UAF.