mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Roland McGrath <roland@redhat.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Dario Faggioli <raistlin@linux.it>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	torbenh <torbenh@gmx.de>,
	john.stultz@linaro.org, Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] Read THREAD_CPUTIME clock from other  processes.
Date: Fri,  7 Jan 2011 11:58:22 -0800 (PST)	[thread overview]
Message-ID: <20110107195822.39DA440467@magilla.sf.frob.com> (raw)
In-Reply-To: Oleg Nesterov's message of  Friday, 7 January 2011 20:49:13 +0100 <20110107194913.GA29536@redhat.com>

> Well, ptrace_may_access() protects only get_wchan/eip/esp, but
> not utime/stime.

Oh, sorry.  I misread the code.  As I said, I leave it to the security
folks to decide what the appropriate constraints are.  All the mechanisms
for accessing the same information should just be consistent.  So perhaps
this is indeed fine.


Thanks,
Roland

  reply	other threads:[~2011-01-07 19:58 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-23 16:21 Dario Faggioli
2010-12-23 16:44 ` Oleg Nesterov
2010-12-23 17:38   ` Dario Faggioli
2010-12-23 18:12     ` Oleg Nesterov
2010-12-24 11:36     ` Dario Faggioli
2010-12-23 17:21 ` Randy Dunlap
2010-12-23 17:43   ` Dario Faggioli
2010-12-28 10:55 ` [PATCH resend] Reading POSIX CPU timer from outside the process Dario Faggioli
2010-12-28 16:38   ` Oleg Nesterov
2010-12-28 21:38     ` Dario Faggioli
2010-12-29 13:21       ` Oleg Nesterov
2010-12-29 14:10         ` Dario Faggioli
2010-12-29 18:30           ` Oleg Nesterov
2010-12-30 17:45         ` torbenh
2011-01-04 11:01           ` Dario Faggioli
2011-01-06 16:06             ` torbenh
2011-01-07 19:28 ` [PATCH] Read THREAD_CPUTIME clock from other processes Roland McGrath
2011-01-07 19:35   ` Oleg Nesterov
2011-01-07 19:50     ` Roland McGrath
2011-01-07 19:49       ` Oleg Nesterov
2011-01-07 19:58         ` Roland McGrath [this message]
2011-01-07 19:56       ` Peter Zijlstra
2011-01-08 11:12   ` Dario Faggioli

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20110107195822.39DA440467@magilla.sf.frob.com \
    --to=roland@redhat.com \
    --cc=john.stultz@linaro.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    --cc=oleg@redhat.com \
    --cc=peterz@infradead.org \
    --cc=raistlin@linux.it \
    --cc=tglx@linutronix.de \
    --cc=torbenh@gmx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®