Re: [linux-next] Kernel panic while tetsing criu

From: Cyrill Gorcunov
Date: Thu Aug 16 2018 - 11:18:43 EST

On Thu, Aug 16, 2018 at 09:51:36AM -0500, Eric W. Biederman wrote:
> That patch is incorrect as it misses the rcu_read_unlock.
> >
> > p.s. Andrew noticed the problem and asked me to notify,
> > also he has been testing this oneliner patch. I'm out
> > of sources at the moment but I think Andrew will help
> > to test if needed.
> I noticed a similar report from syzbot yesterday and I applied the patch
> below. Can you verify it fixes your issue?

I'm quite sure it will help, since the patch is almost doing the same
as Andrew's fast fix, which checks for @p being nil. But to be sure
lets wait Andrew to verify.