[PATCH 3.11 088/208] selinux: selinux_setprocattr()->ptrace_parent() needs rcu_read_lock()

3.11.10.3 -stable review patch. If anyone has any objections, please let me know. -- From: Oleg Nesterov commit c0c1439541f5305b57a83d599af32b74182933fe upstream. selinux_setprocattr() does ptrace_parent(p) under task_lock(p), but task_struct->alloc_lock doesn't pin ->parent

[PATCH 3.11 088/208] selinux: selinux_setprocattr()-ptrace_parent() needs rcu_read_lock()

3.11.10.3 -stable review patch. If anyone has any objections, please let me know. -- From: Oleg Nesterov o...@redhat.com commit c0c1439541f5305b57a83d599af32b74182933fe upstream. selinux_setprocattr() does ptrace_parent(p) under task_lock(p), but task_struct-alloc_lock