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Fix a VDBE stack overflow that occurs when the left-hand side of an IN

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expression is NULL and the result is stored on the stack rather than used
to control a jump.  Ticket #668. (CVS 1299)

FossilOrigin-Name: fc7a7975b03c144c2db3566facd008d3701c735e
This commit is contained in:
drh
2004-03-17 23:32:08 +00:00
parent 276fd588d8
commit 8b8891bf0a
4 changed files with 25 additions and 11 deletions
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4
src/expr.c
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@@ -12,7 +12,7 @@
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.112 2004/02/25 13:47:31 drh Exp $
** $Id: expr.c,v 1.113 2004/03/17 23:32:08 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -1163,7 +1163,7 @@ void sqliteExprCode(Parse *pParse, Expr *pExpr){
sqliteExprCode(pParse, pExpr->pLeft);
addr = sqliteVdbeCurrentAddr(v);
sqliteVdbeAddOp(v, OP_NotNull, -1, addr+4);
sqliteVdbeAddOp(v, OP_Pop, 1, 0);
sqliteVdbeAddOp(v, OP_Pop, 2, 0);
sqliteVdbeAddOp(v, OP_String, 0, 0);
sqliteVdbeAddOp(v, OP_Goto, 0, addr+6);
if( pExpr->pSelect ){