From: Masami Hiramatsu <mhiramat@kernel.org>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Cc: Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, Masami Hiramatsu <mhiramat@kernel.org>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
"David S . Miller" <davem@davemloft.net>,
Jon Medhurst <tixy@linaro.org>, Will Deacon <will.deacon@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
David Howells <dhowells@redhat.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"Tobin C . Harding" <me@tobin.cc>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Richter <tmricht@linux.ibm.com>,
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 -tip v2 1/7] kprobes: Make blacklist root user read only
Date: Thu, 26 Apr 2018 17:08:31 +0900 [thread overview]
Message-ID: <152473011152.8819.5654087016485747842.stgit@devbox> (raw)
In-Reply-To: <152473007907.8819.10449983839199591406.stgit@devbox>
Since the blacklist file indicates a sensitive address
information to reader, it should be restricted to the
root user.
Suggested-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
kernel/kprobes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 102160ff5c66..314cec85a8b2 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;
next prev parent reply other threads:[~2018-04-26 8:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-26 8:08 [PATCH -tip v2 0/7] kprobes: Fix %p in kprobes Masami Hiramatsu
2018-04-26 8:08 ` Masami Hiramatsu [this message]
2018-04-26 8:09 ` [PATCH -tip v2 2/7] kprobes: Show blacklist addresses as same as kallsyms does Masami Hiramatsu
2018-04-26 8:09 ` [PATCH -tip v2 3/7] kprobes: Show address of kprobes if " Masami Hiramatsu
2018-04-26 8:10 ` [PATCH -tip v2 4/7] kprobes: Replace %p with other pointer types Masami Hiramatsu
2018-04-27 1:13 ` Steven Rostedt
2018-04-27 2:39 ` Masami Hiramatsu
2018-04-27 2:48 ` Steven Rostedt
2018-04-27 5:07 ` Masami Hiramatsu
2018-04-26 8:10 ` [PATCH -tip v2 5/7] kprobes/x86: Fix %p uses in error messages Masami Hiramatsu
2018-04-26 8:11 ` [PATCH -tip v2 6/7] kprobes/arm: " Masami Hiramatsu
2018-04-26 8:11 ` [PATCH -tip v2 7/7] kprobes/arm64: " Masami Hiramatsu
2018-04-26 8:13 ` [PATCH -tip v2 0/7] kprobes: Fix %p in kprobes Masami Hiramatsu
2018-04-26 8:40 ` Greg KH
2018-04-27 1:14 ` Steven Rostedt
2018-04-27 6:08 ` Masami Hiramatsu
2018-04-27 6:56 ` Greg KH
2018-04-27 14:51 ` Masami Hiramatsu
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