freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD
flush_old_exec() clears PF_KTHREAD but forgets about PF_NOFREEZE.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/fs/exec.c b/fs/exec.c
index 8b9011b..0039055 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1083,7 +1083,8 @@
bprm->mm = NULL; /* We're using it now */
set_fs(USER_DS);
- current->flags &= ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD);
+ current->flags &=
+ ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | PF_NOFREEZE);
flush_thread();
current->personality &= ~bprm->per_clear;