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

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Pull security subsystem updates from James Morris:
 "A quiet cycle for the security subsystem with just a few maintenance
  updates."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  Smack: create a sysfs mount point for smackfs
  Smack: use select not depends in Kconfig
  Yama: remove locking from delete path
  Yama: add RCU to drop read locking
  drivers/char/tpm: remove tasklet and cleanup
  KEYS: Use keyring_alloc() to create special keyrings
  KEYS: Reduce initial permissions on keys
  KEYS: Make the session and process keyrings per-thread
  seccomp: Make syscall skipping and nr changes more consistent
  key: Fix resource leak
  keys: Fix unreachable code
  KEYS: Add payload preparsing opportunity prior to key instantiate or update
This commit is contained in:
Linus Torvalds 2012-12-16 15:40:50 -08:00
commit 2a74dbb9a8
20 changed files with 369 additions and 370 deletions
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17
include/linux/cred.h
View file

@ -76,21 +76,6 @@ extern int groups_search(const struct group_info *, kgid_t);
extern int in_group_p(kgid_t);
extern int in_egroup_p(kgid_t);
/*
* The common credentials for a thread group
* - shared by CLONE_THREAD
*/
#ifdef CONFIG_KEYS
struct thread_group_cred {
atomic_t usage;
pid_t tgid; /* thread group process ID */
spinlock_t lock;
struct key __rcu *session_keyring; /* keyring inherited over fork */
struct key *process_keyring; /* keyring private to this process */
struct rcu_head rcu; /* RCU deletion hook */
};
#endif
/*
* The security context of a task
*
@ -139,6 +124,8 @@ struct cred {
#ifdef CONFIG_KEYS
unsigned char jit_keyring; /* default keyring to attach requested
* keys to */
struct key __rcu *session_keyring; /* keyring inherited over fork */
struct key *process_keyring; /* keyring private to this process */
struct key *thread_keyring; /* keyring private to this thread */
struct key *request_key_auth; /* assumed request_key authority */
struct thread_group_cred *tgcred; /* thread-group shared credentials */

1
include/linux/key.h
View file

@ -265,6 +265,7 @@ extern int key_unlink(struct key *keyring,
extern struct key *keyring_alloc(const char *description, kuid_t uid, kgid_t gid,
const struct cred *cred,
key_perm_t perm,
unsigned long flags,
struct key *dest);