commit 8408218c1ca88cb17d15278174a24a94a6f65fe1
author djm@openbsd.org <djm@openbsd.org> Mon Sep 21 04:31:00 2015 +0000
committer Damien Miller <djm@mindrot.org> Mon Sep 21 14:33:42 2015 +1000
tree 56082a24225248cf68231a39f885dd567ce916cd
parent 0097248f90a00865082e8c146b905a6555cc146f

upstream commit

fix possible hang on closed output; bz#2469 reported by Tomas
 Kuthan ok markus@

Upstream-ID: f7afd41810f8540f524284f1be6b970859f94fe3

packet.c

diff --git a/packet.c b/packet.c
index 01d3e29..9cf09e2 100644
--- a/packet.c
+++ b/packet.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: packet.c,v 1.214 2015/08/20 22:32:42 deraadt Exp $ */
+/* $OpenBSD: packet.c,v 1.215 2015/09/21 04:31:00 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -2040,7 +2040,8 @@
 	    NFDBITS), sizeof(fd_mask));
 	if (setp == NULL)
 		return SSH_ERR_ALLOC_FAIL;
-	ssh_packet_write_poll(ssh);
+	if ((r = ssh_packet_write_poll(ssh)) != 0)
+		return r;
 	while (ssh_packet_have_data_to_write(ssh)) {
 		memset(setp, 0, howmany(state->connection_out + 1,
 		    NFDBITS) * sizeof(fd_mask));