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Message-ID: <20160124014342.GW17997@ZenIV.linux.org.uk>
Date: Sun, 24 Jan 2016 01:43:42 +0000
From: Al Viro <viro@...IV.linux.org.uk>
To: "Eric W. Biederman" <ebiederm@...ssion.com>
Cc: Jann Horn <jann@...jh.net>, kernel-hardening@...ts.openwall.com,
Kees Cook <keescook@...omium.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Richard Weinberger <richard@....at>,
Andy Lutomirski <luto@...capital.net>,
Robert Święcki <robert@...ecki.net>,
Dmitry Vyukov <dvyukov@...gle.com>,
David Howells <dhowells@...hat.com>,
Miklos Szeredi <mszeredi@...e.cz>,
Kostya Serebryany <kcc@...gle.com>,
Alexander Potapenko <glider@...gle.com>,
Eric Dumazet <edumazet@...gle.com>,
Sasha Levin <sasha.levin@...cle.com>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: Re: [PATCH 1/2] sysctl: expand use of
proc_dointvec_minmax_sysadmin
On Sat, Jan 23, 2016 at 07:20:17PM -0600, Eric W. Biederman wrote:
> Yep. That is about the size of it. file * used to be passed to the
> sysctl methods but it was removed several years ago because no one was
> using it.
Generally cred would be better... Alternatively we could eat one more
pointer in task_struct and stash a reference to that sucker there, rather
than adding an explicit argument (again, with cred instead of file).
Not sure...
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