On Thu, Aug 16, 2018 at 06:18:35PM +0300, Cyrill Gorcunov wrote: > 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.
It fixes the issue. Thanks, Andrei