1 files changed, 3 insertions, 2 deletions

diff --git a/log.c b/log.c
index 2b59c4274..d0f86cf6f 100644
--- a/log.c
+++ b/log.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: log.c,v 1.48 2016/07/15 05:01:58 dtucker Exp $ */
+/* $OpenBSD: log.c,v 1.49 2017/03/10 03:15:58 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -453,7 +453,8 @@ do_log(LogLevel level, const char *fmt, va_list args)
                 tmp_handler(level, fmtbuf, log_handler_ctx);
                 log_handler = tmp_handler;
         } else if (log_on_stderr) {
-                snprintf(msgbuf, sizeof msgbuf, "%s\r\n", fmtbuf);
+                snprintf(msgbuf, sizeof msgbuf, "%.*s\r\n",
+                    (int)sizeof msgbuf - 3, fmtbuf);
                 (void)write(log_stderr_fd, msgbuf, strlen(msgbuf));
         } else {
 #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)