From: Pasi Kallinen <paxed@alt.org>
Date: Sat, 31 Oct 2015 23:44:10 +0000 (+0200)
Subject: Prevent array underflow
X-Git-Tag: NetHack-3.6.0_RC01~111
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b44486e7cc185eb6f967b8b3f17fe30e1934dce7;p=nethack

Prevent array underflow
---

diff --git a/src/sounds.c b/src/sounds.c
index e73890a92..5c0107f50 100644
--- a/src/sounds.c
+++ b/src/sounds.c
@@ -16,8 +16,9 @@ struct monst *mon;
 int rmtyp;
 {
     int rno = levl[mon->mx][mon->my].roomno;
-
-    return rooms[rno - ROOMOFFSET].rtype == rmtyp;
+    if (rno >= ROOMOFFSET)
+        return rooms[rno - ROOMOFFSET].rtype == rmtyp;
+    return FALSE;
 }
 
 void