# RE: \[PATCH 14/15\] kernel: convert futex\_pi\_state.refcount from atomic\_t to refcount\_t

- From: Reshetova, Elena \<hidden\>
- Date: 2017-07-07 10:27:34 
- List: cgroups
- Page: https://ratatoskr.run/cgroups/2017/07/124155
- Thread: https://ratatoskr.run/cgroups/2017/07/124139/t.md

```text
> On Fri, 7 Jul 2017, Peter Zijlstra wrote:
> 
> > On Fri, Jul 07, 2017 at 12:04:28PM +0300, Elena Reshetova wrote:
> > > refcount_t type and corresponding API should be
> > > used instead of atomic_t when the variable is used as
> > > a reference counter. This allows to avoid accidental
> > > refcounter overflows that might lead to use-after-free
> > > situations.
> > >
> > > Signed-off-by: Elena Reshetova <redacted>
> > > Signed-off-by: Hans Liljestrand <redacted>
> > > Signed-off-by: Kees Cook <redacted>
> > > Signed-off-by: David Windsor <redacted>
> >
> > I'll let tglx comment on the SoB chain, I know he likes those :-) You
> > did Cc him right, seeing how he's the maintainer of this stuff..
> 
> Right, that SOB chain is crap. It suggests that the patch was written by
> Elena and then carried on by Hans, handed over to Kees and from there to
> David. And now it's resent by Elena. Circular dependencies or what?

I will fix SOB on all patches and resend. 

Best Regards,
Elena
```