Merge tag 'selinux-pr-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:

 - Add support for measuring the SELinux state and policy capabilities
   using IMA.

 - A handful of SELinux/NFS patches to compare the SELinux state of one
   mount with a set of mount options. Olga goes into more detail in the
   patch descriptions, but this is important as it allows more
   flexibility when using NFS and SELinux context mounts.

 - Properly differentiate between the subjective and objective LSM
   credentials; including support for the SELinux and Smack. My clumsy
   attempt at a proper fix for AppArmor didn't quite pass muster so John
   is working on a proper AppArmor patch, in the meantime this set of
   patches shouldn't change the behavior of AppArmor in any way. This
   change explains the bulk of the diffstat beyond security/.

 - Fix a problem where we were not properly terminating the permission
   list for two SELinux object classes.

* tag 'selinux-pr-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: add proper NULL termination to the secclass_map permissions
  smack: differentiate between subjective and objective task credentials
  selinux: clarify task subjective and objective credentials
  lsm: separate security_task_getsecid() into subjective and objective variants
  nfs: account for selinux security context when deciding to share superblock
  nfs: remove unneeded null check in nfs_fill_super()
  lsm,selinux: add new hook to compare new mount to an existing mount
  selinux: fix misspellings using codespell tool
  selinux: fix misspellings using codespell tool
  selinux: measure state and policy capabilities
  selinux: Allow context mounts for unpriviliged overlayfs

3 files changed, 10 insertions, 3 deletions

diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index ba2e01a6955c..62d19bccf3de 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -242,11 +242,12 @@ struct security_class_mapping secclass_map[] = {
 	{ "infiniband_endport",
 	  { "manage_subnet", NULL } },
 	{ "bpf",
-	  {"map_create", "map_read", "map_write", "prog_load", "prog_run"} },
+	  { "map_create", "map_read", "map_write", "prog_load", "prog_run",
+	    NULL } },
 	{ "xdp_socket",
 	  { COMMON_SOCK_PERMS, NULL } },
 	{ "perf_event",
-	  {"open", "cpu", "kernel", "tracepoint", "read", "write"} },
+	  { "open", "cpu", "kernel", "tracepoint", "read", "write", NULL } },
 	{ "lockdown",
 	  { "integrity", "confidentiality", NULL } },
 	{ "anon_inode",
diff --git a/security/selinux/include/ima.h b/security/selinux/include/ima.h
index d69c36611423..75ca92b4a462 100644
--- a/security/selinux/include/ima.h
+++ b/security/selinux/include/ima.h
@@ -15,10 +15,16 @@
 
 #ifdef CONFIG_IMA
 extern void selinux_ima_measure_state(struct selinux_state *selinux_state);
+extern void selinux_ima_measure_state_locked(
+			struct selinux_state *selinux_state);
 #else
 static inline void selinux_ima_measure_state(struct selinux_state *selinux_state)
 {
 }
+static inline void selinux_ima_measure_state_locked(
+			struct selinux_state *selinux_state)
+{
+}
 #endif
 
 #endif	/* _SELINUX_IMA_H_ */
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 7650de048570..ac0ece01305a 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -426,7 +426,7 @@ extern struct page *selinux_kernel_status_page(struct selinux_state *state);
 
 #define SELINUX_KERNEL_STATUS_VERSION	1
 struct selinux_kernel_status {
-	u32	version;	/* version number of thie structure */
+	u32	version;	/* version number of the structure */
 	u32	sequence;	/* sequence number of seqlock logic */
 	u32	enforcing;	/* current setting of enforcing mode */
 	u32	policyload;	/* times of policy reloaded */