From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:55280 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751140AbeD0Gke (ORCPT ); Fri, 27 Apr 2018 02:40:34 -0400 From: Masami Hiramatsu To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Cc: Ingo Molnar , "H . Peter Anvin" , x86@kernel.org, Masami Hiramatsu , Ananth N Mavinakayanahalli , Anil S Keshavamurthy , "David S . Miller" , Jon Medhurst , Will Deacon , Arnd Bergmann , David Howells , Heiko Carstens , "Tobin C . Harding" , Linus Torvalds , Thomas Richter , akpm@linux-foundation.org, acme@kernel.org, rostedt@goodmis.org, brueckner@linux.vnet.ibm.com, schwidefsky@de.ibm.com, stable@vger.kernel.org Subject: [PATCH v3 1/7] kprobes: Make blacklist root user read only Date: Fri, 27 Apr 2018 15:40:09 +0900 Message-Id: <152481120919.22588.16126591608892708741.stgit@devbox> In-Reply-To: <152481117776.22588.1210388093668905564.stgit@devbox> References: <152481117776.22588.1210388093668905564.stgit@devbox> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org List-ID: Since the blacklist file indicates a sensitive address information to reader, it should be restricted to the root user. Suggested-by: Thomas Richter Signed-off-by: Masami Hiramatsu --- kernel/kprobes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index ea619021d901..51096eece801 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -2621,7 +2621,7 @@ static int __init debugfs_kprobe_init(void) if (!file) goto error; - file = debugfs_create_file("blacklist", 0444, dir, NULL, + file = debugfs_create_file("blacklist", 0400, dir, NULL, &debugfs_kprobe_blacklist_ops); if (!file) goto error;