diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index ae2b0b81be25498aa03fad3e93266e469a87fea9..4e9b77fb702de0604e04687a7aef9d107eed1726 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -69,6 +69,11 @@ struct thread_group_cputimer {
 	bool checking_timer;
 };
 
+struct multiprocess_signals {
+	sigset_t signal;
+	struct hlist_node node;
+};
+
 /*
  * NOTE! "signal_struct" does not have its own
  * locking, because a shared signal_struct always
@@ -90,6 +95,9 @@ struct signal_struct {
 	/* shared signal handling: */
 	struct sigpending	shared_pending;
 
+	/* For collecting multiprocess signals during fork */
+	struct hlist_head	multiprocess;
+
 	/* thread group exit support */
 	int			group_exit_code;
 	/* overloaded:
diff --git a/init/init_task.c b/init/init_task.c
index 4f97846256d7c5e967b77591ec246ad5bc4c36a2..5aebe3be4d7cd65ce1bed995c76b9293fea00b2d 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -22,6 +22,7 @@ static struct signal_struct init_signals = {
 		.list = LIST_HEAD_INIT(init_signals.shared_pending.list),
 		.signal =  {{0}}
 	},
+	.multiprocess	= HLIST_HEAD_INIT,
 	.rlim		= INIT_RLIMITS,
 	.cred_guard_mutex = __MUTEX_INITIALIZER(init_signals.cred_guard_mutex),
 #ifdef CONFIG_POSIX_TIMERS
diff --git a/kernel/fork.c b/kernel/fork.c
index ab731e15a60046a34ddf8f99769da56150db0944..411e34acace730f8f498ed8225d7960a54fb8d5c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1456,6 +1456,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 	init_waitqueue_head(&sig->wait_chldexit);
 	sig->curr_target = tsk;
 	init_sigpending(&sig->shared_pending);
+	INIT_HLIST_HEAD(&sig->multiprocess);
 	seqlock_init(&sig->stats_lock);
 	prev_cputime_init(&sig->prev_cputime);
 
@@ -1602,6 +1603,7 @@ static __latent_entropy struct task_struct *copy_process(
 {
 	int retval;
 	struct task_struct *p;
+	struct multiprocess_signals delayed;
 
 	/*
 	 * Don't allow sharing the root directory with processes in a different
@@ -1649,6 +1651,24 @@ static __latent_entropy struct task_struct *copy_process(
 			return ERR_PTR(-EINVAL);
 	}
 
+	/*
+	 * Force any signals received before this point to be delivered
+	 * before the fork happens.  Collect up signals sent to multiple
+	 * processes that happen during the fork and delay them so that
+	 * they appear to happen after the fork.
+	 */
+	sigemptyset(&delayed.signal);
+	INIT_HLIST_NODE(&delayed.node);
+
+	spin_lock_irq(&current->sighand->siglock);
+	if (!(clone_flags & CLONE_THREAD))
+		hlist_add_head(&delayed.node, &current->signal->multiprocess);
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+	retval = -ERESTARTNOINTR;
+	if (signal_pending(current))
+		goto fork_out;
+
 	retval = -ENOMEM;
 	p = dup_task_struct(current, node);
 	if (!p)
@@ -1934,22 +1954,6 @@ static __latent_entropy struct task_struct *copy_process(
 		goto bad_fork_cancel_cgroup;
 	}
 
-	if (!(clone_flags & CLONE_THREAD)) {
-		/*
-		 * Process group and session signals need to be delivered to just the
-		 * parent before the fork or both the parent and the child after the
-		 * fork. Restart if a signal comes in before we add the new process to
-		 * it's process group.
-		 * A fatal signal pending means that current will exit, so the new
-		 * thread can't slip out of an OOM kill (or normal SIGKILL).
-		 */
-		recalc_sigpending();
-		if (signal_pending(current)) {
-			retval = -ERESTARTNOINTR;
-			goto bad_fork_cancel_cgroup;
-		}
-	}
-
 
 	init_task_pid_links(p);
 	if (likely(p->pid)) {
@@ -1965,7 +1969,7 @@ static __latent_entropy struct task_struct *copy_process(
 				ns_of_pid(pid)->child_reaper = p;
 				p->signal->flags |= SIGNAL_UNKILLABLE;
 			}
-
+			p->signal->shared_pending.signal = delayed.signal;
 			p->signal->tty = tty_kref_get(current->signal->tty);
 			/*
 			 * Inherit has_child_subreaper flag under the same
@@ -1993,8 +1997,8 @@ static __latent_entropy struct task_struct *copy_process(
 		attach_pid(p, PIDTYPE_PID);
 		nr_threads++;
 	}
-
 	total_forks++;
+	hlist_del_init(&delayed.node);
 	spin_unlock(&current->sighand->siglock);
 	syscall_tracepoint_update(p);
 	write_unlock_irq(&tasklist_lock);
@@ -2059,6 +2063,9 @@ bad_fork_free:
 	put_task_stack(p);
 	free_task(p);
 fork_out:
+	spin_lock_irq(&current->sighand->siglock);
+	hlist_del_init(&delayed.node);
+	spin_unlock_irq(&current->sighand->siglock);
 	return ERR_PTR(retval);
 }
 
diff --git a/kernel/signal.c b/kernel/signal.c
index 9f0eafb6d474ec07a5a49a38cab48f3b23662a27..cfa9d10e731ab663c7c932f6ea9257e349101d5e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1121,6 +1121,21 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
 out_set:
 	signalfd_notify(t, sig);
 	sigaddset(&pending->signal, sig);
+
+	/* Let multiprocess signals appear after on-going forks */
+	if (type > PIDTYPE_TGID) {
+		struct multiprocess_signals *delayed;
+		hlist_for_each_entry(delayed, &t->signal->multiprocess, node) {
+			sigset_t *signal = &delayed->signal;
+			/* Can't queue both a stop and a continue signal */
+			if (sig == SIGCONT)
+				sigdelsetmask(signal, SIG_KERNEL_STOP_MASK);
+			else if (sig_kernel_stop(sig))
+				sigdelset(signal, SIGCONT);
+			sigaddset(signal, sig);
+		}
+	}
+
 	complete_signal(sig, t, type);
 ret:
 	trace_signal_generate(sig, info, t, type != PIDTYPE_PID, result);