Stephen Smalley 3a2f5a59a6 security,selinux,smack: kill security_task_wait hook ... As reported by yangshukui, a permission denial from security_task_wait() can lead to a soft lockup in zap_pid_ns_processes() since it only expects sys_wait4() to return 0 or -ECHILD. Further, security_task_wait() can in general lead to zombies; in the absence of some way to automatically reparent a child process upon a denial, the hook is not useful. Remove the security hook and its implementations in SELinux and Smack. Smack already removed its check from its hook. Reported-by: yangshukui <yangshukui@huawei.com> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>		2017-01-12 11:10:57 -05:00
..
Kconfig	Smack: Signal delivery as an append operation	2016-09-08 13:22:56 -07:00
Makefile	Smack: Repair netfilter dependency	2015-01-23 10:08:19 -08:00
smack_access.c	Smack: Remove unnecessary smack_known_invalid	2016-11-15 09:34:39 -08:00
smack_lsm.c	security,selinux,smack: kill security_task_wait hook	2017-01-12 11:10:57 -05:00
smack_netfilter.c	security: Use IS_ENABLED() instead of checking for built-in or module	2016-08-08 13:08:25 -04:00
smack.h	Smack: Remove unnecessary smack_known_invalid	2016-11-15 09:34:39 -08:00
smackfs.c	Smack: Remove unnecessary smack_known_invalid	2016-11-15 09:34:39 -08:00