David Howells cf8304e8f3 KEYS: Fix RCU handling in key_gc_keyring() ... key_gc_keyring() needs to either hold the RCU read lock or hold the keyring semaphore if it's going to scan the keyring's list. Given that it only needs to read the key list, and it's doing so under a spinlock, the RCU read lock is the thing to use. Furthermore, the RCU check added in e7b0a61b79 is incorrect as holding the spinlock on key_serial_lock is not grounds for assuming a keyring's pointer list can be read safely. Instead, a simple rcu_dereference() inside of the previously mentioned RCU read lock is what we want. Reported-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>		2010-05-05 11:39:23 +10:00
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Makefile	…
compat.c	…
gc.c	KEYS: Fix RCU handling in key_gc_keyring()	2010-05-05 11:39:23 +10:00
internal.h	…
key.c	…
keyctl.c	…
keyring.c	keys: don't need to use RCU in keyring_read() as semaphore is held	2010-04-28 08:37:15 +10:00
permission.c	…
proc.c	…
process_keys.c	…
request_key.c	keys: the request_key() syscall should link an existing key to the dest keyring	2010-04-27 16:26:03 -07:00
request_key_auth.c	…
sysctl.c	…
user_defined.c	KEYS: Fix an RCU warning in the reading of user keys	2010-05-05 11:38:52 +10:00