mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-27 04:17:20 +02:00
Add stack depth checks to key recursive functions in backend/nodes/*.c.
Although copyfuncs.c has a check_stack_depth call in its recursion, equalfuncs.c, outfuncs.c, and readfuncs.c lacked one. This seems unwise. Likewise fix planstate_tree_walker(), in branches where that exists. Discussion: https://postgr.es/m/30253.1544286631@sss.pgh.pa.us
This commit is contained in:
parent
078303f79b
commit
0f9fd7419a
@ -29,6 +29,7 @@
|
||||
|
||||
#include "postgres.h"
|
||||
|
||||
#include "miscadmin.h"
|
||||
#include "nodes/extensible.h"
|
||||
#include "nodes/relation.h"
|
||||
#include "utils/datum.h"
|
||||
@ -2732,6 +2733,9 @@ equal(const void *a, const void *b)
|
||||
if (nodeTag(a) != nodeTag(b))
|
||||
return false;
|
||||
|
||||
/* Guard against stack overflow due to overly complex expressions */
|
||||
check_stack_depth();
|
||||
|
||||
switch (nodeTag(a))
|
||||
{
|
||||
/*
|
||||
|
@ -3623,6 +3623,9 @@ planstate_tree_walker(PlanState *planstate,
|
||||
Plan *plan = planstate->plan;
|
||||
ListCell *lc;
|
||||
|
||||
/* Guard against stack overflow due to overly complex plan trees */
|
||||
check_stack_depth();
|
||||
|
||||
/* initPlan-s */
|
||||
if (planstate_walk_subplans(planstate->initPlan, walker, context))
|
||||
return true;
|
||||
|
@ -26,6 +26,7 @@
|
||||
#include <ctype.h>
|
||||
|
||||
#include "lib/stringinfo.h"
|
||||
#include "miscadmin.h"
|
||||
#include "nodes/extensible.h"
|
||||
#include "nodes/plannodes.h"
|
||||
#include "nodes/relation.h"
|
||||
@ -3276,6 +3277,9 @@ _outForeignKeyCacheInfo(StringInfo str, const ForeignKeyCacheInfo *node)
|
||||
void
|
||||
outNode(StringInfo str, const void *obj)
|
||||
{
|
||||
/* Guard against stack overflow due to overly complex expressions */
|
||||
check_stack_depth();
|
||||
|
||||
if (obj == NULL)
|
||||
appendStringInfoString(str, "<>");
|
||||
else if (IsA(obj, List) ||IsA(obj, IntList) || IsA(obj, OidList))
|
||||
|
@ -29,6 +29,7 @@
|
||||
#include <math.h>
|
||||
|
||||
#include "fmgr.h"
|
||||
#include "miscadmin.h"
|
||||
#include "nodes/extensible.h"
|
||||
#include "nodes/parsenodes.h"
|
||||
#include "nodes/plannodes.h"
|
||||
@ -2262,6 +2263,9 @@ parseNodeString(void)
|
||||
|
||||
READ_TEMP_LOCALS();
|
||||
|
||||
/* Guard against stack overflow due to overly complex expressions */
|
||||
check_stack_depth();
|
||||
|
||||
token = pg_strtok(&length);
|
||||
|
||||
#define MATCH(tokname, namelen) \
|
||||
|
Loading…
Reference in New Issue
Block a user