1 files changed, 14 insertions, 2 deletions

diff --git a/src/process.c b/src/process.c
index 4f6d2832f8d..14535eb6e1e 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1295,7 +1295,20 @@ Returns nil if format of ADDRESS is invalid.  */)
         return Qnil;
 
       for (i = 0; i < nargs; i++)
-        args[i+1] = p->contents[i];
+        {
+          EMACS_INT element = XINT (p->contents[i]);
+
+          if (element < 0 || element > 65535)
+            return Qnil;
+
+          if (nargs <= 5         /* IPv4 */
+              && i < 4           /* host, not port */
+              && element > 255)
+            return Qnil;
+
+          args[i+1] = p->contents[i];
+        }
+
       return Fformat (nargs+1, args);
     }
 
@@ -1410,7 +1423,6 @@ list_processes_1 (query_only)
       if (CONSP (p->status))
         symbol = XCAR (p->status);
 
-
       if (EQ (symbol, Qsignal))
         {
           Lisp_Object tem;