From 9fffe925d2049d925dbc4b52beda5b35c7b3aaa5 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 13 Sep 2020 23:08:45 +0200
Subject: [PATCH] dynbuf: make sure Curl_dyn_tail() zero terminates

Closes #5959
---
 lib/dynbuf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/dynbuf.c b/lib/dynbuf.c
index 38d370b07..265a769e8 100644
--- a/lib/dynbuf.c
+++ b/lib/dynbuf.c
@@ -143,6 +143,7 @@ CURLcode Curl_dyn_tail(struct dynbuf *s, size_t trail)
   else {
     memmove(&s->bufr[0], &s->bufr[s->leng - trail], trail);
     s->leng = trail;
+    s->bufr[s->leng] = 0;
   }
   return CURLE_OK;