Merge tag 'v4.9.127' into imx_4.9.x_2.3.0_ga

This is the 4.9.127 stable release

Conflicts:
	drivers/gpu/drm/imx/imx-ldb.c
	drivers/staging/android/ion/ion_priv.h

1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 2c98b987808d..5d0e2f366766 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1304,7 +1304,9 @@ static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk)
 		return -ENOMEM;
 
 	atomic_set(&sig->count, 1);
+	spin_lock_irq(&current->sighand->siglock);
 	memcpy(sig->action, current->sighand->action, sizeof(sig->action));
+	spin_unlock_irq(&current->sighand->siglock);
 	return 0;
 }