David Howells bcf945d36f [PATCH] Error during attempt to join key management session can leave semaphore pinned ... The attached patch prevents an error during the key session joining operation from hanging future joins in the D state [CAN-2005-2098]. The problem is that the error handling path for the KEYCTL_JOIN_SESSION_KEYRING operation has one error path that doesn't release the session management semaphore. Further attempts to get the semaphore will then sleep for ever in the D state. This can happen in four situations, all involving an attempt to allocate a new session keyring: (1) ENOMEM. (2) The users key quota being reached. (3) A keyring name that is an empty string. (4) A keyring name that is too long. Any user may attempt this operation, and so any user can cause the problem to occur. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-08-04 13:11:14 -07:00
..
compat.c	[PATCH] Keys: Make request-key create an authorisation key	2005-06-24 00:05:19 -07:00
internal.h	[PATCH] Keys: Make request-key create an authorisation key	2005-06-24 00:05:19 -07:00
key.c	[PATCH] RCU: clean up a few remaining synchronize_kernel() calls	2005-06-25 16:24:38 -07:00
keyctl.c	[PATCH] Keys: Fix key management syscall interface bugs	2005-08-04 08:20:47 -07:00
keyring.c	[PATCH] Keys: Base keyring size on key pointer not key struct	2005-07-07 18:23:46 -07:00
Makefile	[PATCH] Keys: Make request-key create an authorisation key	2005-06-24 00:05:19 -07:00
proc.c	[PATCH] keys: Discard key spinlock and use RCU for key payload	2005-06-24 00:05:18 -07:00
process_keys.c	[PATCH] Error during attempt to join key management session can leave semaphore pinned	2005-08-04 13:11:14 -07:00
request_key_auth.c	[PATCH] Keys: Make request-key create an authorisation key	2005-06-24 00:05:19 -07:00
request_key.c	[PATCH] Keys: Fix key management syscall interface bugs	2005-08-04 08:20:47 -07:00
user_defined.c	[PATCH] eCryptfs: export user key type	2005-06-24 00:05:19 -07:00