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
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apparmor
integrity
keys
loadpin
selinux	security,selinux,smack: kill security_task_wait hook	2017-01-12 11:10:57 -05:00
smack	security,selinux,smack: kill security_task_wait hook	2017-01-12 11:10:57 -05:00
tomoyo
yama
commoncap.c
device_cgroup.c
inode.c
Kconfig
lsm_audit.c
Makefile
min_addr.c
security.c	security,selinux,smack: kill security_task_wait hook	2017-01-12 11:10:57 -05:00