linux-kernel - Re: [PATCH -tip v8 03/26] kprobes: Prohibit probing on .entry.text code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 21 Mar 2014 18:04:00 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andi Kleen <andi@...stfloor.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>, x86@...nel.org,
	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>, fche@...hat.com,
	mingo@...hat.com, Al Viro <viro@...iv.linux.org.uk>,
	systemtap@...rceware.org, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Seiji Aguchi <seiji.aguchi@....com>
Subject: Re: [PATCH -tip v8 03/26] kprobes: Prohibit probing on .entry.text
 code

On Wed, 05 Mar 2014 20:59:04 +0900
Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> wrote:


>  struct kprobe_insn_cache {
>  	struct mutex mutex;
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index ceeadfc..5b5ac76 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -96,9 +96,6 @@ static raw_spinlock_t *kretprobe_table_lock_ptr(unsigned long hash)
>  static struct kprobe_blackpoint kprobe_blacklist[] = {
>  	{"preempt_schedule",},
>  	{"native_get_debugreg",},
> -	{"irq_entries_start",},
> -	{"common_interrupt",},
> -	{"mcount",},	/* mcount can be called from everywhere */

Is mcount in the entry.text section? Also, what about ftrace_caller and
friends.

-- Steve
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/