I don't think you can stop it being dereferenced... you just need to prevent an attacker from exploiting the null pointer dereference vulnerability right? And this is done by returning the function right away?
On 21 June 2017 at 22:36, David Miller <da...@davemloft.net> wrote: > From: Michael D <michael.j.dilm...@gmail.com> > Date: Wed, 21 Jun 2017 22:35:56 +0100 > >> How do we actually stop a null pointer being dereferenced here? > > Maybe that's why it's a BUG_ON(), there is no reasonable way > to continue if the pointer is NULL. >
