From 1cfee74a2812b8f09e8b8ecf419a69b19de16b79 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Wed, 19 Feb 2020 15:39:46 +0000
Subject: Fix a potential NULL pointer dereference following OOM.  Problem
 discovered by dbsqlfuzz.  Test case in TH3.

FossilOrigin-Name: 5aeb5a2d295e10d5fc1d456b3acaf8ac13c04cb5bb71a8c4571541d366e95887
---
 src/resolve.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/resolve.c')

diff --git a/src/resolve.c b/src/resolve.c
index 119a07fd2..05ef0c06e 100644
--- a/src/resolve.c
+++ b/src/resolve.c
@@ -1051,7 +1051,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
       assert( !ExprHasProperty(pExpr, EP_Reduced) );
       /* Handle special cases of "x IS TRUE", "x IS FALSE", "x IS NOT TRUE",
       ** and "x IS NOT FALSE". */
-      if( pRight->op==TK_ID ){
+      if( pRight && pRight->op==TK_ID ){
         int rc = resolveExprStep(pWalker, pRight);
         if( rc==WRC_Abort ) return WRC_Abort;
         if( pRight->op==TK_TRUEFALSE ){
-- 
cgit v1.2.3