Merge branch 'master' into next

14 files changed, 39 insertions, 28 deletions

diff --git a/security/commoncap.c b/security/commoncap.c
index 97ac1f167717..48b7e0228fa3 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -948,7 +948,6 @@ changed:
         return commit_creds(new);
 
 no_change:
-        error = 0;
 error:
         abort_creds(new);
         return error;
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 3aacd0fe7179..5fda7df19723 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -11,6 +11,7 @@
 #include <linux/uaccess.h>
 #include <linux/seq_file.h>
 #include <linux/rcupdate.h>
+#include <linux/mutex.h>
 
 #define ACC_MKNOD 1
 #define ACC_READ  2
@@ -21,9 +22,11 @@
 #define DEV_CHAR  2
 #define DEV_ALL   4  /* this represents all devices */
 
+static DEFINE_MUTEX(devcgroup_mutex);
+
 /*
  * whitelist locking rules:
- * hold cgroup_lock() for update/read.
+ * hold devcgroup_mutex for update/read.
  * hold rcu_read_lock() for read.
  */
 
@@ -67,7 +70,7 @@ static int devcgroup_can_attach(struct cgroup_subsys *ss,
 }
 
 /*
- * called under cgroup_lock()
+ * called under devcgroup_mutex
  */
 static int dev_whitelist_copy(struct list_head *dest, struct list_head *orig)
 {
@@ -92,7 +95,7 @@ free_and_exit:
 
 /* Stupid prototype - don't bother combining existing entries */
 /*
- * called under cgroup_lock()
+ * called under devcgroup_mutex
  */
 static int dev_whitelist_add(struct dev_cgroup *dev_cgroup,
                         struct dev_whitelist_item *wh)
@@ -130,7 +133,7 @@ static void whitelist_item_free(struct rcu_head *rcu)
 }
 
 /*
- * called under cgroup_lock()
+ * called under devcgroup_mutex
  */
 static void dev_whitelist_rm(struct dev_cgroup *dev_cgroup,
                         struct dev_whitelist_item *wh)
@@ -185,8 +188,10 @@ static struct cgroup_subsys_state *devcgroup_create(struct cgroup_subsys *ss,
                 list_add(&wh->list, &dev_cgroup->whitelist);
         } else {
                 parent_dev_cgroup = cgroup_to_devcgroup(parent_cgroup);
+                mutex_lock(&devcgroup_mutex);
                 ret = dev_whitelist_copy(&dev_cgroup->whitelist,
                                 &parent_dev_cgroup->whitelist);
+                mutex_unlock(&devcgroup_mutex);
                 if (ret) {
                         kfree(dev_cgroup);
                         return ERR_PTR(ret);
@@ -273,7 +278,7 @@ static int devcgroup_seq_read(struct cgroup *cgroup, struct cftype *cft,
  * does the access granted to dev_cgroup c contain the access
  * requested in whitelist item refwh.
  * return 1 if yes, 0 if no.
- * call with c->lock held
+ * call with devcgroup_mutex held
  */
 static int may_access_whitelist(struct dev_cgroup *c,
                                        struct dev_whitelist_item *refwh)
@@ -426,11 +431,11 @@ static int devcgroup_access_write(struct cgroup *cgrp, struct cftype *cft,
                                   const char *buffer)
 {
         int retval;
-        if (!cgroup_lock_live_group(cgrp))
-                return -ENODEV;
+
+        mutex_lock(&devcgroup_mutex);
         retval = devcgroup_update_access(cgroup_to_devcgroup(cgrp),
                                          cft->private, buffer);
-        cgroup_unlock();
+        mutex_unlock(&devcgroup_mutex);
         return retval;
 }
 
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 22a31582bfaa..03fe63ed55bd 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -311,7 +311,8 @@ static int construct_alloc_key(struct key_type *type,
 
         set_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags);
 
-        down_write(&dest_keyring->sem);
+        if (dest_keyring)
+                down_write(&dest_keyring->sem);
 
         /* attach the key to the destination keyring under lock, but we do need
          * to do another check just in case someone beat us to it whilst we
@@ -322,10 +323,12 @@ static int construct_alloc_key(struct key_type *type,
         if (!IS_ERR(key_ref))
                 goto key_already_present;
 
-        __key_link(dest_keyring, key);
+        if (dest_keyring)
+                __key_link(dest_keyring, key);
 
         mutex_unlock(&key_construction_mutex);
-        up_write(&dest_keyring->sem);
+        if (dest_keyring)
+                up_write(&dest_keyring->sem);
         mutex_unlock(&user->cons_lock);
         *_key = key;
         kleave(" = 0 [%d]", key_serial(key));
diff --git a/security/security.c b/security/security.c
index 206e53844d2f..5284255c5cdf 100644
--- a/security/security.c
+++ b/security/security.c
@@ -445,6 +445,7 @@ int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
                 return 0;
         return security_ops->inode_create(dir, dentry, mode);
 }
+EXPORT_SYMBOL_GPL(security_inode_create);
 
 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
                          struct dentry *new_dentry)
@@ -475,6 +476,7 @@ int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                 return 0;
         return security_ops->inode_mkdir(dir, dentry, mode);
 }
+EXPORT_SYMBOL_GPL(security_inode_mkdir);
 
 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 {
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 39046ddd90a9..195906bce266 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3145,7 +3145,7 @@ static int selinux_file_send_sigiotask(struct task_struct *tsk,
                                        struct fown_struct *fown, int signum)
 {
         struct file *file;
-        u32 sid = current_sid();
+        u32 sid = task_sid(tsk);
         u32 perm;
         struct file_security_struct *fsec;
 
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index f557767911c9..0d030b4513c8 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -675,8 +675,12 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
             strcmp(name, XATTR_NAME_SMACKIPOUT) == 0) {
                 if (!capable(CAP_MAC_ADMIN))
                         rc = -EPERM;
-                /* a label cannot be void and cannot begin with '-' */
-                if (size == 0 || (size > 0 && ((char *)value)[0] == '-'))
+                /*
+                 * check label validity here so import wont fail on
+                 * post_setxattr
+                 */
+                if (size == 0 || size >= SMK_LABELLEN ||
+                    smk_import(value, size) == NULL)
                         rc = -EINVAL;
         } else
                 rc = cap_inode_setxattr(dentry, name, value, size, flags);
@@ -713,9 +717,6 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
         if (strcmp(name, XATTR_NAME_SMACK))
                 return;
 
-        if (size >= SMK_LABELLEN)
-                return;
-
         isp = dentry->d_inode->i_security;
 
         /*
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index a0affd9cfca8..d4d41b3efc7c 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
@@ -1773,7 +1773,7 @@ void tomoyo_load_policy(const char *filename)
         envp[2] = NULL;
         call_usermodehelper(argv[0], argv, envp, 1);
 
-        printk(KERN_INFO "TOMOYO: 2.2.0-pre   2009/02/01\n");
+        printk(KERN_INFO "TOMOYO: 2.2.0   2009/04/01\n");
         printk(KERN_INFO "Mandatory Access Control activated.\n");
         tomoyo_policy_loaded = true;
         { /* Check all profiles currently assigned to domains are defined. */
@@ -1800,7 +1800,7 @@ void tomoyo_load_policy(const char *filename)
 static int tomoyo_read_version(struct tomoyo_io_buffer *head)
 {
         if (!head->read_eof) {
-                tomoyo_io_printf(head, "2.2.0-pre");
+                tomoyo_io_printf(head, "2.2.0");
                 head->read_eof = true;
         }
         return 0;
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index e77e6a6de0f2..678f4ff16aa4 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 2f2b449ffd2d..2d6748741a26 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 65f50c1c5ee9..2316da8ec5bc 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index d47f16b844b2..bf8e2b451687 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -5,13 +5,14 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
 #include <linux/types.h>
 #include <linux/mount.h>
 #include <linux/mnt_namespace.h>
+#include <linux/fs_struct.h>
 #include "common.h"
 #include "realpath.h"
 
diff --git a/security/tomoyo/realpath.h b/security/tomoyo/realpath.h
index 7ec9fc9cbc07..78217a37960b 100644
--- a/security/tomoyo/realpath.h
+++ b/security/tomoyo/realpath.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 3eeeae12c4dc..5b481912752a 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/tomoyo.h b/security/tomoyo/tomoyo.h
index a0c8f6e0bea4..41c6ebafb9c5 100644
--- a/security/tomoyo/tomoyo.h
+++ b/security/tomoyo/tomoyo.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */