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djm pushed a commit to branch master
in repository openssh.

commit b99498d0c93f1edd04857b318308a66b28316bd8
Author: djm@openbsd.org <djm@openbsd.org>
Date: Thu Nov 18 03:07:20 2021 +0000

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 9ada0c18..432fc5be 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:

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