From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Tejun Heo <tj@kernel.org>, Li Zefan <lizefan@huawei.com>,
Johannes Weiner <hannes@cmpxchg.org>,
cgroups@vger.kernel.org, fenghua.yu@intel.com,
linux-kernel@vger.kernel.org
Subject: Re: fs_context-related oops in mainline
Date: Fri, 15 Mar 2019 07:29:18 -0700 [thread overview]
Message-ID: <20190315142918.GA31099@kroah.com> (raw)
In-Reply-To: <11428.1552659870@warthog.procyon.org.uk>
On Fri, Mar 15, 2019 at 02:24:30PM +0000, David Howells wrote:
> Al Viro <viro@zeniv.linux.org.uk> wrote:
>
> > - if (fc->user_ns)
> > - put_user_ns(fc->user_ns);
> > - fc->user_ns = get_user_ns(netns->user_ns);
> > + if (netns) {
> > + if (fc->user_ns)
> > + put_user_ns(fc->user_ns);
> > + fc->user_ns = get_user_ns(netns->user_ns);
> > + }
>
> This begs the question why is sysfs using the current network namespace's idea
> of the user namespace? Why not just use the one directly from current->cred?
Ask the networking people that question, I have no idea :)
next prev parent reply other threads:[~2019-03-15 14:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-15 7:43 fs_context-related oops in mainline Dominik Brodowski
2019-03-15 11:34 ` Al Viro
2019-03-15 11:46 ` Dominik Brodowski
2019-03-15 11:44 ` David Howells
2019-03-15 11:50 ` Dominik Brodowski
2019-03-15 12:18 ` Al Viro
2019-03-15 12:57 ` Dominik Brodowski
2019-03-15 14:24 ` David Howells
2019-03-15 14:29 ` Greg Kroah-Hartman [this message]
2019-03-15 14:51 ` Al Viro
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