linux-kernel - Re: CFI violation in drivers/infiniband/core/sysfs.c

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Date:   Wed, 5 May 2021 18:26:24 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jason Gunthorpe <jgg@...pe.ca>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Doug Ledford <dledford@...hat.com>,
        Leon Romanovsky <leon@...nel.org>,
        Parav Pandit <parav@...dia.com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com
Subject: Re: CFI violation in drivers/infiniband/core/sysfs.c

On Tue, May 04, 2021 at 05:22:22PM -0300, Jason Gunthorpe wrote:
> On Fri, Apr 02, 2021 at 11:55:59PM -0700, Nathan Chancellor wrote:
> > > So, I think, the solution is below. This hasn't been runtime tested. It
> > > basically removes the ib_port callback prototype and leaves everything
> > > as kobject/attr. The callbacks then do their own container_of() calls.
> > 
> > Well that appear to be okay from a runtime perspective.
> 
> This giant thing should fix it, and some of the other stuff Greg observed:
> 
> https://github.com/jgunthorpe/linux/commits/rmda_sysfs_cleanup
> 
> It needs some testing before it gets posted

When you post it, can you cc: me?

thanks,

greg k-h