linux/security
Ahmed S. Darwish 1d252fb870 smack: do not dereference NULL ipc object
In the SYSV ipc msgctl(),semctl(),shmctl() family, if the user passed *_INFO
as the desired operation, no specific object is meant to be controlled and
only system-wide information is returned.  This leads to a NULL IPC object in
the LSM hooks if the _INFO flag is given.

Avoid dereferencing this NULL pointer in Smack ipc *ctl() methods.

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-19 18:53:36 -07:00
..
keys Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
selinux make selinux_parse_opts_str() static 2008-03-18 09:17:22 +11:00
smack smack: do not dereference NULL ipc object 2008-03-19 18:53:36 -07:00
capability.c Implement file posix capabilities 2007-10-17 08:43:07 -07:00
commoncap.c file capabilities: simplify signal check 2008-02-23 17:12:13 -08:00
dummy.c LSM/SELinux: Interfaces to allow FS to control mount options 2008-03-06 08:40:53 +11:00
inode.c Kobject: convert remaining kobject_unregister() to kobject_put() 2008-01-24 20:40:40 -08:00
Kconfig security: allow Kconfig to set default mmap_min_addr protection 2008-02-06 21:39:46 +08:00
Makefile Smack: Simplified Mandatory Access Control Kernel 2008-02-05 09:44:20 -08:00
root_plug.c security: Convert LSM into a static interface 2007-10-17 08:43:07 -07:00
security.c LSM/SELinux: Interfaces to allow FS to control mount options 2008-03-06 08:40:53 +11:00