In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu() in sksetupcaps() Use RCU to protect accesses to dst->dev from sksetupcaps() and skdstgsomaxsize(). Also use dstdevrcu() in ip6dstmtumaybeforward(), and ipdstmtumaybeforward(). ip4dsthoplimit() can use dstdevnet_rcu().