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

Pull security subsystem updates from James Morris:
 "In this release:

   - PKCS#7 parser for the key management subsystem from David Howells
   - appoint Kees Cook as seccomp maintainer
   - bugfixes and general maintenance across the subsystem"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (94 commits)
  X.509: Need to export x509_request_asymmetric_key()
  netlabel: shorter names for the NetLabel catmap funcs/structs
  netlabel: fix the catmap walking functions
  netlabel: fix the horribly broken catmap functions
  netlabel: fix a problem when setting bits below the previously lowest bit
  PKCS#7: X.509 certificate issuer and subject are mandatory fields in the ASN.1
  tpm: simplify code by using %*phN specifier
  tpm: Provide a generic means to override the chip returned timeouts
  tpm: missing tpm_chip_put in tpm_get_random()
  tpm: Properly clean sysfs entries in error path
  tpm: Add missing tpm_do_selftest to ST33 I2C driver
  PKCS#7: Use x509_request_asymmetric_key()
  Revert "selinux: fix the default socket labeling in sock_graft()"
  X.509: x509_request_asymmetric_keys() doesn't need string length arguments
  PKCS#7: fix sparse non static symbol warning
  KEYS: revert encrypted key change
  ima: add support for measuring and appraising firmware
  firmware_class: perform new LSM checks
  security: introduce kernel_fw_from_file hook
  PKCS#7: Missing inclusion of linux/err.h
  ...

1 files changed, 15 insertions, 3 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 66124d63371a..7c19d552dc3f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1304,13 +1304,12 @@ struct task_struct {
                                  * execve */
         unsigned in_iowait:1;
 
-        /* task may not gain privileges */
-        unsigned no_new_privs:1;
-
         /* Revert to default priority/policy when forking */
         unsigned sched_reset_on_fork:1;
         unsigned sched_contributes_to_load:1;
 
+        unsigned long atomic_flags; /* Flags needing atomic access. */
+
         pid_t pid;
         pid_t tgid;
 
@@ -1962,6 +1961,19 @@ static inline void memalloc_noio_restore(unsigned int flags)
         current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;
 }
 
+/* Per-process atomic flags. */
+#define PFA_NO_NEW_PRIVS 0x00000001     /* May not gain new privileges. */
+
+static inline bool task_no_new_privs(struct task_struct *p)
+{
+        return test_bit(PFA_NO_NEW_PRIVS, &p->atomic_flags);
+}
+
+static inline void task_set_no_new_privs(struct task_struct *p)
+{
+        set_bit(PFA_NO_NEW_PRIVS, &p->atomic_flags);
+}
+
 /*
  * task->jobctl flags
  */