From ab45f86d7421a80b46d8a7c3b5c6e9984fe7347d Mon Sep 17 00:00:00 2001
From: "Roger A. Light" <roger@atchoo.org>
Date: Thu, 22 Jun 2017 09:47:03 +0100
Subject: [PATCH] Prevent out of bounds array access.

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

diff --git a/src/loop.c b/src/loop.c
index 46f15d24..0828c40c 100644
--- a/src/loop.c
+++ b/src/loop.c
@@ -539,7 +539,7 @@ static void loop_handle_reads_writes(struct mosquitto_db *db, struct pollfd *pol
 				}
 			}while(SSL_DATA_PENDING(context));
 		}
-		if(pollfds[context->pollfd_index].revents & (POLLERR | POLLNVAL | POLLHUP)){
+		if(context->pollfd_index >= 0 && pollfds[context->pollfd_index].revents & (POLLERR | POLLNVAL | POLLHUP)){
 			do_disconnect(db, context);
 			continue;
 		}