On Wed, Sep 28, 2016 at 11:35:14AM -0400, Aaron Conole wrote: > It's possible for nf_hook_entry_head to return NULL. If two > nf_unregister_net_hook calls happen simultaneously with a single hook > entry in the list, both will enter the nf_hook_mutex critical section. > The first will successfully delete the head, but the second will see > this NULL pointer and attempt to dereference. > > This fix ensures that no null pointer dereference could occur when such > a condition happens.
Applied, thanks Aaron.
