Merge branch 'master' into next

32 files changed, 52 insertions, 15 deletions

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 37c5af6ac49..8d9c48f1377 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -10,6 +10,7 @@
 #include <linux/list.h>
 #include <linux/uaccess.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 #include <linux/rcupdate.h>
 #include <linux/mutex.h>
 
diff --git a/security/inode.c b/security/inode.c
index c3a793881d0..1c812e87450 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -161,13 +161,13 @@ static int create_by_name(const char *name, mode_t mode,
 
 	mutex_lock(&parent->d_inode->i_mutex);
 	*dentry = lookup_one_len(name, parent, strlen(name));
-	if (!IS_ERR(dentry)) {
+	if (!IS_ERR(*dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = mkdir(parent->d_inode, *dentry, mode);
 		else
 			error = create(parent->d_inode, *dentry, mode);
 	} else
-		error = PTR_ERR(dentry);
+		error = PTR_ERR(*dentry);
 	mutex_unlock(&parent->d_inode->i_mutex);
 
 	return error;
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 2a5e0bcf388..52015d098fd 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -13,6 +13,7 @@
  *	and store_template.
  */
 #include <linux/module.h>
+#include <linux/slab.h>
 
 #include "ima.h"
 static const char *IMA_TEMPLATE_NAME = "ima";
diff --git a/security/integrity/ima/ima_audit.c b/security/integrity/ima/ima_audit.c
index fcb1f714cfc..c5c5a72c30b 100644
--- a/security/integrity/ima/ima_audit.c
+++ b/security/integrity/ima/ima_audit.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/gfp.h>
 #include <linux/audit.h>
 #include "ima.h"
 
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index acd4226f73e..9b3ade7468b 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -18,6 +18,7 @@
 #include <linux/crypto.h>
 #include <linux/scatterlist.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 #include "ima.h"
 
 static int init_desc(struct hash_desc *desc)
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 3674a52e1cf..8fe736aabe7 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -16,6 +16,7 @@
  *	current measurement list and IMA statistics
  */
 #include <linux/fcntl.h>
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/seq_file.h>
 #include <linux/rculist.h>
diff --git a/security/integrity/ima/ima_iint.c b/security/integrity/ima/ima_iint.c
index 6cc22430cb4..2dc2d659414 100644
--- a/security/integrity/ima/ima_iint.c
+++ b/security/integrity/ima/ima_iint.c
@@ -14,6 +14,7 @@
  *	- cache integrity information associated with an inode
  *	  using a radix tree.
  */
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/radix-tree.h>
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index b93eddc589e..17f1f060306 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -16,6 +16,7 @@
  */
 #include <linux/module.h>
 #include <linux/scatterlist.h>
+#include <linux/slab.h>
 #include <linux/err.h>
 #include "ima.h"
 
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 983037fb9a9..f93641382e9 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -21,6 +21,7 @@
 #include <linux/binfmts.h>
 #include <linux/mount.h>
 #include <linux/mman.h>
+#include <linux/slab.h>
 
 #include "ima.h"
 
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 778a735621f..aef8c0a923a 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -15,6 +15,7 @@
 #include <linux/security.h>
 #include <linux/magic.h>
 #include <linux/parser.h>
+#include <linux/slab.h>
 
 #include "ima.h"
 
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index 148a3d85e77..8e28f04a5e2 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -20,6 +20,7 @@
  */
 #include <linux/module.h>
 #include <linux/rculist.h>
+#include <linux/slab.h>
 #include "ima.h"
 
 LIST_HEAD(ima_measurements);	/* list of all measurements */
diff --git a/security/keys/gc.c b/security/keys/gc.c
index 19902319d09..a46e825cbf0 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -77,10 +77,10 @@ static bool key_gc_keyring(struct key *keyring, time_t limit)
 		goto dont_gc;
 
 	/* scan the keyring looking for dead keys */
-	klist = rcu_dereference_check(keyring->payload.subscriptions,
-				      lockdep_is_held(&key_serial_lock));
+	rcu_read_lock();
+	klist = rcu_dereference(keyring->payload.subscriptions);
 	if (!klist)
-		goto dont_gc;
+		goto unlock_dont_gc;
 
 	for (loop = klist->nkeys - 1; loop >= 0; loop--) {
 		key = klist->keys[loop];
@@ -89,11 +89,14 @@ static bool key_gc_keyring(struct key *keyring, time_t limit)
 			goto do_gc;
 	}
 
+unlock_dont_gc:
+	rcu_read_unlock();
 dont_gc:
 	kleave(" = false");
 	return false;
 
 do_gc:
+	rcu_read_unlock();
 	key_gc_cursor = keyring->serial;
 	key_get(keyring);
 	spin_unlock(&key_serial_lock);
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index ce7c44b857d..2fb2bc9712a 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -199,7 +199,7 @@ static long keyring_read(const struct key *keyring,
 	int loop, ret;
 
 	ret = 0;
-	klist = rcu_dereference(keyring->payload.subscriptions);
+	klist = keyring->payload.subscriptions;
 
 	if (klist) {
 		/* calculate how much data we could return */
diff --git a/security/keys/proc.c b/security/keys/proc.c
index 81bf98d67c6..068b66ea2f1 100644
--- a/security/keys/proc.c
+++ b/security/keys/proc.c
@@ -12,7 +12,6 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sched.h>
-#include <linux/slab.h>
 #include <linux/fs.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 5c23afb31ec..06c2ccf26ed 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -12,7 +12,6 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sched.h>
-#include <linux/slab.h>
 #include <linux/keyctl.h>
 #include <linux/fs.h>
 #include <linux/err.h>
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 03fe63ed55b..d737cea5347 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -68,7 +68,8 @@ static int call_sbin_request_key(struct key_construction *cons,
 {
 	const struct cred *cred = current_cred();
 	key_serial_t prkey, sskey;
-	struct key *key = cons->key, *authkey = cons->authkey, *keyring;
+	struct key *key = cons->key, *authkey = cons->authkey, *keyring,
+		*session;
 	char *argv[9], *envp[3], uid_str[12], gid_str[12];
 	char key_str[12], keyring_str[3][12];
 	char desc[20];
@@ -112,10 +113,12 @@ static int call_sbin_request_key(struct key_construction *cons,
 	if (cred->tgcred->process_keyring)
 		prkey = cred->tgcred->process_keyring->serial;
 
-	if (cred->tgcred->session_keyring)
-		sskey = rcu_dereference(cred->tgcred->session_keyring)->serial;
-	else
-		sskey = cred->user->session_keyring->serial;
+	rcu_read_lock();
+	session = rcu_dereference(cred->tgcred->session_keyring);
+	if (!session)
+		session = cred->user->session_keyring;
+	sskey = session->serial;
+	rcu_read_unlock();
 
 	sprintf(keyring_str[2], "%d", sskey);
 
@@ -336,8 +339,10 @@ static int construct_alloc_key(struct key_type *type,
 
 key_already_present:
 	mutex_unlock(&key_construction_mutex);
-	if (dest_keyring)
+	if (dest_keyring) {
+		__key_link(dest_keyring, key_ref_to_ptr(key_ref));
 		up_write(&dest_keyring->sem);
+	}
 	mutex_unlock(&user->cons_lock);
 	key_put(key);
 	*_key = key = key_ref_to_ptr(key_ref);
@@ -428,6 +433,11 @@ struct key *request_key_and_link(struct key_type *type,
 
 	if (!IS_ERR(key_ref)) {
 		key = key_ref_to_ptr(key_ref);
+		if (dest_keyring) {
+			construct_get_dest_keyring(&dest_keyring);
+			key_link(dest_keyring, key);
+			key_put(dest_keyring);
+		}
 	} else if (PTR_ERR(key_ref) != -EAGAIN) {
 		key = ERR_CAST(key_ref);
 	} else  {
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index 7c687d56822..e9aa0792965 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -199,7 +199,8 @@ long user_read(const struct key *key, char __user *buffer, size_t buflen)
 	struct user_key_payload *upayload;
 	long ret;
 
-	upayload = rcu_dereference(key->payload.data);
+	upayload = rcu_dereference_protected(
+		key->payload.data, rwsem_is_locked(&((struct key *)key)->sem));
 	ret = upayload->datalen;
 
 	/* we can return the data as is */
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 8c3650672e2..908aa712816 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/stddef.h>
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <net/sock.h>
diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index b4e14bc0bf3..d6095d63d83 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -16,6 +16,7 @@
  */
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index 3d09a2afc33..1c2fc46544b 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -29,6 +29,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/rcupdate.h>
+#include <linux/gfp.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <net/sock.h>
diff --git a/security/selinux/netlink.c b/security/selinux/netlink.c
index 7d7be296d87..36ac257cec9 100644
--- a/security/selinux/netlink.c
+++ b/security/selinux/netlink.c
@@ -11,6 +11,7 @@
  */
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/skbuff.h>
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index 7100072bb1b..dc92792271f 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -31,6 +31,7 @@
 #include <linux/types.h>
 #include <linux/rcupdate.h>
 #include <linux/list.h>
+#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/in.h>
 #include <linux/in6.h>
diff --git a/security/selinux/netport.c b/security/selinux/netport.c
index fe7fba67f19..cfe2d72d3fb 100644
--- a/security/selinux/netport.c
+++ b/security/selinux/netport.c
@@ -30,6 +30,7 @@
 #include <linux/types.h>
 #include <linux/rcupdate.h>
 #include <linux/list.h>
+#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/in.h>
 #include <linux/in6.h>
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index f3cb9ed731a..fff78d3b51a 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -38,6 +38,7 @@
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4.h>
 #include <linux/netfilter_ipv6.h>
+#include <linux/slab.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/skbuff.h>
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 0f9ac814690..f4fac64c4da 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include "smack.h"
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 2a20738e7ea..0f2fc480fc6 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -24,6 +24,7 @@
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
+#include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/pipe_fs_i.h>
 #include <net/netlabel.h>
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index aeead758509..a2b72d77f92 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -20,6 +20,7 @@
 #include <linux/vmalloc.h>
 #include <linux/security.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/netlabel.h>
 #include <net/cipso_ipv4.h>
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index b9f64ca5f15..3c86bbc33ae 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/uaccess.h>
+#include <linux/slab.h>
 #include <linux/security.h>
 #include <linux/hardirq.h>
 #include "common.h"
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index ed514188324..e1edec4a9b9 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -11,6 +11,7 @@
 
 #include "common.h"
 #include <linux/binfmts.h>
+#include <linux/slab.h>
 
 /* Variables definitions.*/
 
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index cf67e55a0d1..0687ada28e8 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -10,6 +10,7 @@
  */
 
 #include "common.h"
+#include <linux/slab.h>
 
 /* Keyword array for single path operations. */
 static const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION] = {
diff --git a/security/tomoyo/gc.c b/security/tomoyo/gc.c
index 9645525ccdd..d9ad35bc7fa 100644
--- a/security/tomoyo/gc.c
+++ b/security/tomoyo/gc.c
@@ -9,6 +9,7 @@
 
 #include "common.h"
 #include <linux/kthread.h>
+#include <linux/slab.h>
 
 enum tomoyo_gc_id {
 	TOMOYO_ID_DOMAIN_INITIALIZER,
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 8fe3ee20a18..6a51e0af241 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -15,6 +15,7 @@
 #include <linux/fs_struct.h>
 #include <linux/hash.h>
 #include <linux/magic.h>
+#include <linux/slab.h>
 #include "common.h"
 
 /**