David Howells 879669961b KEYS/DNS: Fix ____call_usermodehelper() to not lose the session keyring ... ____call_usermodehelper() now erases any credentials set by the subprocess_inf::init() function. The problem is that commit 17f60a7da1 ("capabilites: allow the application of capability limits to usermode helpers") creates and commits new credentials with prepare_kernel_cred() after the call to the init() function. This wipes all keyrings after umh_keys_init() is called. The best way to deal with this is to put the init() call just prior to the commit_creds() call, and pass the cred pointer to init(). That means that umh_keys_init() and suchlike can modify the credentials _before_ they are published and potentially in use by the rest of the system. This prevents request_key() from working as it is prevented from passing the session keyring it set up with the authorisation token to /sbin/request-key, and so the latter can't assume the authority to instantiate the key. This causes the in-kernel DNS resolver to fail with ENOKEY unconditionally. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Eric Paris <eparis@redhat.com> Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-06-17 09:40:48 -07:00
..
apparmor	AppArmor: Fix sleep in invalid context from task_setrlimit	2011-06-09 11:46:53 +10:00
integrity/ima	ima: remove unnecessary call to ima_must_measure	2011-02-23 16:38:52 -05:00
keys	KEYS/DNS: Fix ____call_usermodehelper() to not lose the session keyring	2011-06-17 09:40:48 -07:00
selinux	Merge branch 'for-linus' of git://git.infradead.org/users/eparis/selinux into for-linus	2011-06-15 09:41:48 +10:00
smack	Merge commit 'v2.6.39' into 20110526	2011-05-26 17:20:14 -04:00
tomoyo	TOMOYO: Fix oops in tomoyo_mount_acl().	2011-06-14 15:18:42 +10:00
capability.c	SECURITY: Move exec_permission RCU checks into security modules	2011-04-25 10:20:32 -04:00
commoncap.c	capabilities: do not special case exec of init	2011-04-04 10:31:06 +10:00
device_cgroup.c	cgroups: add per-thread subsystem callbacks	2011-05-26 17:12:34 -07:00
inode.c	convert get_sb_single() users	2010-10-29 04:16:28 -04:00
Kconfig	security: select correct default LSM_MMAP_MIN_ADDR on ARM.	2011-03-22 09:35:12 +11:00
lsm_audit.c	LSM: separate LSM_AUDIT_DATA_DENTRY from LSM_AUDIT_DATA_PATH	2011-04-25 18:14:07 -04:00
Makefile	AppArmor: Enable configuring and building of the AppArmor security module	2010-08-02 15:38:34 +10:00
min_addr.c	mmap_min_addr check CAP_SYS_RAWIO only for write	2010-04-23 08:56:31 +10:00
security.c	SECURITY: Move exec_permission RCU checks into security modules	2011-04-25 10:20:32 -04:00