Merge branch 'master' into next

4 files changed, 9 insertions, 23 deletions

diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index db0fd9f..989fef8 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -337,7 +337,7 @@ static inline struct avc_node *avc_search_node(u32 ssid, u32 tsid, u16 tclass)
  * Look up an AVC entry that is valid for the
  * (@ssid, @tsid), interpreting the permissions
  * based on @tclass.  If a valid AVC entry exists,
- * then this function return the avc_node.
+ * then this function returns the avc_node.
  * Otherwise, this function returns NULL.
  */
 static struct avc_node *avc_lookup(u32 ssid, u32 tsid, u16 tclass)
@@ -523,7 +523,7 @@ void avc_audit(u32 ssid, u32 tsid,
  * @perms: permissions
  *
  * Register a callback function for events in the set @events
- * related to the SID pair (@ssid, @tsid) and
+ * related to the SID pair (@ssid, @tsid) 
  * and the permissions @perms, interpreting
  * @perms based on @tclass.  Returns %0 on success or
  * -%ENOMEM if insufficient memory exists to add the callback.
@@ -568,7 +568,7 @@ static inline int avc_sidcmp(u32 x, u32 y)
  *
  * if a valid AVC entry doesn't exist,this function returns -ENOENT.
  * if kmalloc() called internal returns NULL, this function returns -ENOMEM.
- * otherwise, this function update the AVC entry. The original AVC-entry object
+ * otherwise, this function updates the AVC entry. The original AVC-entry object
  * will release later by RCU.
  */
 static int avc_update_node(u32 event, u32 perms, u32 ssid, u32 tsid, u16 tclass,
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index a5721b3..5225e66 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -387,7 +387,7 @@ static int smack_sb_umount(struct vfsmount *mnt, int flags)
 	struct smk_audit_info ad;
 
 	smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_FS);
-	smk_ad_setfield_u_fs_path_dentry(&ad, mnt->mnt_mountpoint);
+	smk_ad_setfield_u_fs_path_dentry(&ad, mnt->mnt_root);
 	smk_ad_setfield_u_fs_path_mnt(&ad, mnt);
 
 	sbp = mnt->mnt_sb->s_security;
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 8ccf129..588f36a 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -886,6 +886,7 @@ static struct tomoyo_profile *tomoyo_find_or_assign_new_profile(const unsigned
 	ptr = kmalloc(sizeof(*ptr), GFP_KERNEL);
 	if (!tomoyo_memory_ok(ptr)) {
 		kfree(ptr);
+		ptr = NULL;
 		goto ok;
 	}
 	for (i = 0; i < TOMOYO_MAX_CONTROL_INDEX; i++)
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index c00df45..cf7d61f 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -88,29 +88,14 @@ int tomoyo_realpath_from_path2(struct path *path, char *newname,
 		sp = dentry->d_op->d_dname(dentry, newname + offset,
 					   newname_len - offset);
 	} else {
-		/* Taken from d_namespace_path(). */
-		struct path root;
-		struct path ns_root = { };
-		struct path tmp;
+		struct path ns_root = {.mnt = NULL, .dentry = NULL};
 
-		read_lock(&current->fs->lock);
-		root = current->fs->root;
-		path_get(&root);
-		read_unlock(&current->fs->lock);
-		spin_lock(&vfsmount_lock);
-		if (root.mnt && root.mnt->mnt_ns)
-			ns_root.mnt = mntget(root.mnt->mnt_ns->root);
-		if (ns_root.mnt)
-			ns_root.dentry = dget(ns_root.mnt->mnt_root);
-		spin_unlock(&vfsmount_lock);
 		spin_lock(&dcache_lock);
-		tmp = ns_root;
-		sp = __d_path(path, &tmp, newname, newname_len);
+		/* go to whatever namespace root we are under */
+		sp = __d_path(path, &ns_root, newname, newname_len);
 		spin_unlock(&dcache_lock);
-		path_put(&root);
-		path_put(&ns_root);
 		/* Prepend "/proc" prefix if using internal proc vfs mount. */
-		if (!IS_ERR(sp) && (path->mnt->mnt_parent == path->mnt) &&
+		if (!IS_ERR(sp) && (path->mnt->mnt_flags & MNT_INTERNAL) &&
 		    (path->mnt->mnt_sb->s_magic == PROC_SUPER_MAGIC)) {
 			sp -= 5;
 			if (sp >= newname)