From 8b8efb44033c7e86b3dc76f825c693ec92ae30e9 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Sun, 4 Oct 2009 21:49:48 +0900
Subject: LSM: Add security_path_chroot().

This patch allows pathname based LSM modules to check chroot() operations.

This hook is used by TOMOYO.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
---
 fs/open.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'fs')

diff --git a/fs/open.c b/fs/open.c
index b5c294d35bd1..201041dfca57 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -587,6 +587,9 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
 	error = -EPERM;
 	if (!capable(CAP_SYS_CHROOT))
 		goto dput_and_out;
+	error = security_path_chroot(&path);
+	if (error)
+		goto dput_and_out;
 
 	set_fs_root(current->fs, &path);
 	error = 0;
-- 
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