From ed6692cf2afcd066eb4d19cf14960c7b0fc0da46 Mon Sep 17 00:00:00 2001
From: mittorn <mittorn@sibmail.com>
Date: Sat, 4 Aug 2018 22:00:46 +0700
Subject: [PATCH] Fix null pointer deference

---
 dlls/enttools.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dlls/enttools.cpp b/dlls/enttools.cpp
index 9bcfaae0..9d862db9 100644
--- a/dlls/enttools.cpp
+++ b/dlls/enttools.cpp
@@ -506,7 +506,10 @@ void Ent_Fire_f( edict_t *player )
 			return;
 
 		ent = g_engfuncs.pfnPEntityOfEntIndex( i );
-		if( ent->serialnumber != atoi( cmd ) )
+		if( ent && ent->serialnumber != atoi( cmd ) )
+			return;
+
+		if( !Ent_IsValidEdict( ent ) )
 			return;
 	}
 	else