From: djm <djm@openbsd.org>
Date: Thu, 17 Feb 2022 10:58:27 +0000 (+0000)
Subject: check for EINTR/EAGAIN failures in the rfd fast-path;
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=f6fa34da6526ec814bc8c66e7cf6ac490befd484;p=openbsd

check for EINTR/EAGAIN failures in the rfd fast-path;
caught by dtucker's minix3 vm :) ok dtucker@
---

diff --git a/usr.bin/ssh/channels.c b/usr.bin/ssh/channels.c
index f5e5baebdfe..db9d5d9dfca 100644
--- a/usr.bin/ssh/channels.c
+++ b/usr.bin/ssh/channels.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: channels.c,v 1.412 2022/01/22 00:45:31 djm Exp $ */
+/* $OpenBSD: channels.c,v 1.413 2022/02/17 10:58:27 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -1931,6 +1931,8 @@ channel_handle_rfd(struct ssh *ssh, Channel *c)
 		if (maxlen > avail)
 			maxlen = avail;
 		if ((r = sshbuf_read(c->rfd, c->input, maxlen, NULL)) != 0) {
+			if (errno == EINTR || errno == EAGAIN)
+				return 1;
 			debug2("channel %d: read failed rfd %d maxlen %zu: %s",
 			    c->self, c->rfd, maxlen, ssh_err(r));
 			goto rfail;