Re: [PATCH][RFC] Null short-circuit for selinux_cred_free()

From: Jesper Juhl
Date: Wed Mar 23 2011 - 17:07:49 EST

On Wed, 23 Mar 2011, Tetsuo Handa wrote:

> Jesper Juhl wrote:
> > Let selinux_cred_free accept NULL pointers.
> No need to do so.
> > If we don't do this, then we can crash if someone manages to pass NULL to
> > cred_free. Seems to me it's better to just do nothing in that case rather
> > than crash.
> If cred == NULL, put_cred_rcu(NULL) causes the kernel to panic before calling
> LSM hooks.

Good point. Thanks.

Jesper Juhl <jj@xxxxxxxxxxxxx>
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