From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
To: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, John Stultz <johnstul@us.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Switch proc interfaces in kernel/ to %pK
Date: Wed, 19 Jan 2011 10:29:54 +0900 [thread overview]
Message-ID: <4D363E92.2020602@hitachi.com> (raw)
In-Reply-To: <1295391078.1831.21.camel@dan>
(2011/01/19 7:51), Dan Rosenberg wrote:
> Switch users of %p in /proc interfaces in kernel/ to %pK, to allow
> configuring the level of exposure of kernel pointers via the
> kptr_restrict sysctl.
This report_probe interface is at /sys/kernel/debug/kprobes/list.
Is that policy applied to debugfs interface (for debug) too?
# in that case, you might update ftrace and perf tracing interfaces...
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index 7798181..2437ca4 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -2021,11 +2021,11 @@ static void __kprobes report_probe(struct seq_file *pi, struct kprobe *p,
> kprobe_type = "k";
>
> if (sym)
> - seq_printf(pi, "%p %s %s+0x%x %s ",
> + seq_printf(pi, "%pK %s %s+0x%x %s ",
> p->addr, kprobe_type, sym, offset,
> (modname ? modname : " "));
> else
> - seq_printf(pi, "%p %s %p ",
> + seq_printf(pi, "%pK %s %pK ",
> p->addr, kprobe_type, p->addr);
>
> if (!pp)
--
Masami HIRAMATSU
2nd Dept. Linux Technology Center
Hitachi, Ltd., Systems Development Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com
next prev parent reply other threads:[~2011-01-19 1:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 22:51 [PATCH] Switch proc interfaces in kernel/ to %pK Dan Rosenberg
2011-01-18 22:52 ` Alexey Dobriyan
2011-01-18 23:13 ` Dan Rosenberg
2011-01-18 22:52 ` Paul Menage
2011-01-19 1:29 ` Masami Hiramatsu [this message]
2011-01-19 15:04 ` Dan Rosenberg
2011-01-20 1:18 ` Masami Hiramatsu
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