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David Howells b1d7dd80aa KEYS: Fix error handling in construct_key_and_link() 
Fix error handling in construct_key_and_link().

If construct_alloc_key() returns an error, it shouldn't pass out through
the normal path as the key_serial() called by the kleave() statement
will oops when it gets an error code in the pointer:

  BUG: unable to handle kernel paging request at ffffffffffffff84
  IP: [<ffffffff8120b401>] request_key_and_link+0x4d7/0x52f
  ..
  Call Trace:
   [<ffffffff8120b52c>] request_key+0x41/0x75
   [<ffffffffa00ed6e8>] cifs_get_spnego_key+0x206/0x226 [cifs]
   [<ffffffffa00eb0c9>] CIFS_SessSetup+0x511/0x1234 [cifs]
   [<ffffffffa00d9799>] cifs_setup_session+0x90/0x1ae [cifs]
   [<ffffffffa00d9c02>] cifs_get_smb_ses+0x34b/0x40f [cifs]
   [<ffffffffa00d9e05>] cifs_mount+0x13f/0x504 [cifs]
   [<ffffffffa00caabb>] cifs_do_mount+0xc4/0x672 [cifs]
   [<ffffffff8113ae8c>] mount_fs+0x69/0x155
   [<ffffffff8114ff0e>] vfs_kern_mount+0x63/0xa0
   [<ffffffff81150be2>] do_kern_mount+0x4d/0xdf
   [<ffffffff81152278>] do_mount+0x63c/0x69f
   [<ffffffff8115255c>] sys_mount+0x88/0xc2
   [<ffffffff814fbdc2>] system_call_fastpath+0x16/0x1b

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2011-06-21 18:31:45 -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: Fix error handling in construct_key_and_link() 2011-06-21 18:31:45 -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
Kconfig security: select correct default LSM_MMAP_MIN_ADDR on ARM. 2011-03-22 09:35:12 +11:00
Makefile AppArmor: Enable configuring and building of the AppArmor security module 2010-08-02 15:38:34 +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 devcgroup_inode_permission: take "is it a device node" checks to inlined wrapper 2011-06-20 10:46:04 -04:00
inode.c convert get_sb_single() users 2010-10-29 04:16:28 -04:00
lsm_audit.c LSM: separate LSM_AUDIT_DATA_DENTRY from LSM_AUDIT_DATA_PATH 2011-04-25 18:14:07 -04:00
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