From 42d1efe4f9d36a512383e0979ea2fa7a6d9801c7 Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Tue, 9 Nov 2021 09:33:41 +0100
Subject: [PATCH] bind_config: Ignore empty lines

This also avoids buffer overflow with empty lines.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
---
 src/bind_config.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/bind_config.c b/src/bind_config.c
index 020dff62..4c891c95 100644
--- a/src/bind_config.c
+++ b/src/bind_config.c
@@ -301,7 +301,12 @@ ssh_bind_config_parse_line(ssh_bind bind,
         return -1;
     }
 
-    if ((line == NULL) || (parser_flags == NULL)) {
+    /* Ignore empty lines */
+    if (line == NULL || *line == '\0') {
+        return 0;
+    }
+
+    if (parser_flags == NULL) {
         ssh_set_error_invalid(bind);
         return -1;
     }