Index: src/vdbemem.c
==================================================================
--- src/vdbemem.c
+++ src/vdbemem.c
@@ -1082,10 +1082,11 @@
       pVal->r = (double)-1 * pVal->r;
       sqlite3ValueApplyAffinity(pVal, affinity, enc);
     }
   }else if( op==TK_NULL ){
     pVal = sqlite3ValueNew(db);
+    if( pVal==0 ) goto no_mem;
   }
 #ifndef SQLITE_OMIT_BLOB_LITERAL
   else if( op==TK_BLOB ){
     int nVal;
     assert( pExpr->u.zToken[0]=='x' || pExpr->u.zToken[0]=='X' );