Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull security subsystem updates from James Morris:
 "In this update, Smack learns to love IPv6 and to mount a filesystem
  with a transmutable hierarchy (i.e.  security labels are inherited
  from parent directory upon creation rather than creating process).

  The rest of the changes are maintenance"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (37 commits)
  tpm/tpm_i2c_infineon: Remove unused header file
  tpm: tpm_i2c_infinion: Don't modify i2c_client->driver
  evm: audit integrity metadata failures
  integrity: move integrity_audit_msg()
  evm: calculate HMAC after initializing posix acl on tmpfs
  maintainers:  add Dmitry Kasatkin
  Smack: Fix the bug smackcipso can't set CIPSO correctly
  Smack: Fix possible NULL pointer dereference at smk_netlbl_mls()
  Smack: Add smkfstransmute mount option
  Smack: Improve access check performance
  Smack: Local IPv6 port based controls
  tpm: fix regression caused by section type conflict of tpm_dev_release() in ppc builds
  maintainers: Remove Kent from maintainers
  tpm: move TPM_DIGEST_SIZE defintion
  tpm_tis: missing platform_driver_unregister() on error in init_tis()
  security: clarify cap_inode_getsecctx description
  apparmor: no need to delay vfree()
  apparmor: fix fully qualified name parsing
  apparmor: fix setprocattr arg processing for onexec
  apparmor: localize getting the security context to a few macros
  ...

1 files changed, 12 insertions, 3 deletions

diff --git a/security/apparmor/resource.c b/security/apparmor/resource.c
index e1f3d7ef2c5..748bf0ca6c9 100644
--- a/security/apparmor/resource.c
+++ b/security/apparmor/resource.c
@@ -15,6 +15,7 @@
 #include <linux/audit.h>
 
 #include "include/audit.h"
+#include "include/context.h"
 #include "include/resource.h"
 #include "include/policy.h"
 
@@ -90,17 +91,25 @@ int aa_map_resource(int resource)
 int aa_task_setrlimit(struct aa_profile *profile, struct task_struct *task,
 		      unsigned int resource, struct rlimit *new_rlim)
 {
+	struct aa_profile *task_profile;
 	int error = 0;
 
+	rcu_read_lock();
+	task_profile = aa_get_profile(aa_cred_profile(__task_cred(task)));
+	rcu_read_unlock();
+
 	/* TODO: extend resource control to handle other (non current)
-	 * processes.  AppArmor rules currently have the implicit assumption
-	 * that the task is setting the resource of the current process
+	 * profiles.  AppArmor rules currently have the implicit assumption
+	 * that the task is setting the resource of a task confined with
+	 * the same profile.
 	 */
-	if ((task != current->group_leader) ||
+	if (profile != task_profile ||
 	    (profile->rlimits.mask & (1 << resource) &&
 	     new_rlim->rlim_max > profile->rlimits.limits[resource].rlim_max))
 		error = -EACCES;
 
+	aa_put_profile(task_profile);
+
 	return audit_resource(profile, resource, new_rlim->rlim_max, error);
 }