"kernel NULL pointer dereference" crash when attempting a write

[Stephen Muth]

On Tue, Jan 25, 2022 at 7:27 PM Vivek Goyal <vgoyal at redhat.com> wrote:
>
> On Tue, Jan 25, 2022 at 02:57:46PM -0500, Paul Moore wrote:
> >
> > > > Looks like dentry_init_security() can't handle multiple LSMs. We probably
> > > > should disallow all other LSMs to register a hook for this and only
> > > > allow SELinux to register a hook.
> > >
> > > Not acceptable. The fix to dentry_init_security() is easy.
> >
> > Sounds good to me, Vivek did you want to put together a patch for
> > this?  If not, let me know and I'll put one together.
>
> Ok, I have put together this test patch. Stephen Muth, can you please
> test it and let us know if it solves your problem.
>
Just tested it, and had no problem making writes.
(Apologies for any double sends, accidentally had rich text enabled
the first time)