From b99498d0c93f1edd04857b318308a66b28316bd8 Mon Sep 17 00:00:00 2001
From: "djm@openbsd.org" <djm@openbsd.org>
Date: Thu, 18 Nov 2021 03:07:20 +0000
Subject: [PATCH] upstream: check for POLLHUP as well as POLLIN in sshd listen
 loop;

ok deraadt millert

OpenBSD-Commit-ID: a4f1244c5a9c2b08dac4f3b1dc22e9d1dc60c587
---
 sshd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sshd.c b/sshd.c
index 9ada0c18b..432fc5be4 100644
--- a/sshd.c
+++ b/sshd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshd.c,v 1.580 2021/11/17 21:06:39 djm Exp $ */
+/* $OpenBSD: sshd.c,v 1.581 2021/11/18 03:07:20 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -1218,7 +1218,7 @@ server_accept_loop(int *sock_in, int *sock_out, int *newsock, int *config_s)
 
 		for (i = 0; i < options.max_startups; i++) {
 			if (startup_pipes[i] == -1 ||
-			    !(pfd[num_listen_socks+i].revents & POLLIN))
+			    !(pfd[num_listen_socks+i].revents & (POLLIN|POLLHUP)))
 				continue;
 			switch (read(startup_pipes[i], &c, sizeof(c))) {
 			case -1: