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Message-ID: <7c638a92-8c40-fa15-8c63-777232588137@infradead.org>
Date: Fri, 11 May 2018 09:09:04 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Alexey Gladkov <gladkov.alexey@...il.com>,
Kees Cook <keescook@...omium.org>, Andy Lutomirski <luto@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com,
linux-security-module@...r.kernel.org, linux-api@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Akinobu Mita <akinobu.mita@...il.com>, Oleg Nesterov <oleg@...hat.com>,
Jeff Layton <jlayton@...chiereds.net>, Ingo Molnar <mingo@...nel.org>,
Alexey Dobriyan <adobriyan@...il.com>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
aniel Micay <danielmicay@...il.com>, Jonathan Corbet <corbet@....net>,
bfields@...ldses.org, Stephen Rothwell <sfr@...b.auug.org.au>,
solar@...nwall.com, "Dmitry V. Levin" <ldv@...linux.org>,
Djalal Harouni <tixxdz@...il.com>
Subject: Re: [PATCH v5 5/7] proc: instantiate only pids that we can ptrace on
'limit_pids=1' mount option
On 05/11/2018 02:36 AM, Alexey Gladkov wrote:
> From: Djalal Harouni <tixxdz@...il.com>
>
> If "limit_pids=1" mount option is set then do not instantiate pids that
> we can not ptrace. "limit_pids=1" means that procfs should only contain
> pids that the caller can ptrace.
Where can I find documentation on these mount options (pidonly, limit_pids)?
Thanks.
> Cc: Kees Cook <keescook@...omium.org>
> Cc: Andy Lutomirski <luto@...nel.org>
> Signed-off-by: Djalal Harouni <tixxdz@...il.com>
> ---
> fs/proc/base.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
--
~Randy
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