From 581c201aa8e188e83575fa8826b47c9ee1e563f3 Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Thu, 20 Feb 2025 23:43:10 +0000
Subject: [PATCH] Avoid division by zero with unlucky choices of max-port and
 min-port.

---
 src/network.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/network.c b/src/network.c
index 1c71fe3..61742f6 100644
--- a/src/network.c
+++ b/src/network.c
@@ -1379,7 +1379,7 @@ int local_bind(int fd, union mysockaddr *addr, char *intname, unsigned int ifind
   /* cannot set source _port_ for TCP connections. */
   if (is_tcp)
     port = 0;
-  else if (port == 0 && daemon->max_port != 0)
+  else if (port == 0 && daemon->max_port != 0 && daemon->max_port >= daemon->min_port)
     {
       /* Bind a random port within the range given by min-port and max-port if either
 	 or both are set. Otherwise use the OS's random ephemeral port allocation by