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().