3 files changed, 20 insertions, 6 deletions

diff --git a/security/security.c b/security/security.c
index e5fb07a..739e403 100644
--- a/security/security.c
+++ b/security/security.c
@@ -513,6 +513,15 @@ int security_inode_permission(struct inode *inode, int mask)
 	return security_ops->inode_permission(inode, mask);
 }
 
+int security_inode_exec_permission(struct inode *inode, unsigned int flags)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return 0;
+	if (flags)
+		return -ECHILD;
+	return security_ops->inode_permission(inode, MAY_EXEC);
+}
+
 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 {
 	if (unlikely(IS_PRIVATE(dentry->d_inode)))
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 073fd5b..43deac2 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1145,24 +1145,28 @@ static void sel_remove_entries(struct dentry *de)
 {
 	struct list_head *node;
 
-	spin_lock(&dcache_lock);
+	spin_lock(&de->d_lock);
 	node = de->d_subdirs.next;
 	while (node != &de->d_subdirs) {
 		struct dentry *d = list_entry(node, struct dentry, d_u.d_child);
+
+		spin_lock_nested(&d->d_lock, DENTRY_D_LOCK_NESTED);
 		list_del_init(node);
 
 		if (d->d_inode) {
-			d = dget_locked(d);
-			spin_unlock(&dcache_lock);
+			dget_dlock(d);
+			spin_unlock(&de->d_lock);
+			spin_unlock(&d->d_lock);
 			d_delete(d);
 			simple_unlink(de->d_inode, d);
 			dput(d);
-			spin_lock(&dcache_lock);
-		}
+			spin_lock(&de->d_lock);
+		} else
+			spin_unlock(&d->d_lock);
 		node = de->d_subdirs.next;
 	}
 
-	spin_unlock(&dcache_lock);
+	spin_unlock(&de->d_lock);
 }
 
 #define BOOL_DIR_NAME "booleans"
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 1d0bf8f..d1e05b0 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -14,6 +14,7 @@
 #include <linux/slab.h>
 #include <net/sock.h>
 #include "common.h"
+#include "../../fs/internal.h"
 
 /**
  * tomoyo_encode: Convert binary string to ascii string.