3.18-stable review patch. If anyone has any objections, please let me know.
------------------ From: Masami Hiramatsu <mhira...@kernel.org> commit f2a3ab36077222437b4826fc76111caa14562b7c upstream. Since the blacklist and list files on debugfs indicates a sensitive address information to reader, it should be restricted to the root user. Suggested-by: Thomas Richter <tmri...@linux.ibm.com> Suggested-by: Ingo Molnar <mi...@kernel.org> Signed-off-by: Masami Hiramatsu <mhira...@kernel.org> Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamur...@intel.com> Cc: Arnd Bergmann <a...@arndb.de> Cc: David Howells <dhowe...@redhat.com> Cc: David S . Miller <da...@davemloft.net> Cc: Heiko Carstens <heiko.carst...@de.ibm.com> Cc: Jon Medhurst <t...@linaro.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Tobin C . Harding <m...@tobin.cc> Cc: Will Deacon <will.dea...@arm.com> Cc: a...@kernel.org Cc: a...@linux-foundation.org Cc: brueck...@linux.vnet.ibm.com Cc: linux-a...@vger.kernel.org Cc: rost...@goodmis.org Cc: schwidef...@de.ibm.com Cc: sta...@vger.kernel.org Link: https://lkml.kernel.org/lkml/152491890171.9916.5183693615601334087.stgit@devbox Signed-off-by: Ingo Molnar <mi...@kernel.org> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- kernel/kprobes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -2425,7 +2425,7 @@ static int __init debugfs_kprobe_init(vo if (!dir) return -ENOMEM; - file = debugfs_create_file("list", 0444, dir, NULL, + file = debugfs_create_file("list", 0400, dir, NULL, &debugfs_kprobes_operations); if (!file) goto error; @@ -2435,7 +2435,7 @@ static int __init debugfs_kprobe_init(vo 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;
