Messages in this thread | | From: Michael D <michael.j.dilmore@gmail.com> Date: Wed, 21 Jun 2017 22:41:07 +0100
> 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?
What's all of this about an "attacker"?
If there is a bug, we dererence a NULL pointer, and we should fix that bug.
The BUG_ON() helps us see where the problem is while at the same time stopping the kernel before the NULL deref happens.
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