diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2018-12-10 11:12:43 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2018-12-10 11:12:43 -0500 |
| commit | 0f9fd7419a19c3bfa000117d8b475e134824259a (patch) | |
| tree | 68a951d0a17ca0ea2647a1125adcfd86afe0cfb1 /src/backend/nodes/nodeFuncs.c | |
| parent | 078303f79b513ef8f50fdf2a95181c61519e4559 (diff) | |
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
Diffstat (limited to 'src/backend/nodes/nodeFuncs.c')
| -rw-r--r-- | src/backend/nodes/nodeFuncs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/nodes/nodeFuncs.c b/src/backend/nodes/nodeFuncs.c index cd391673511..8c6989229cb 100644 --- a/src/backend/nodes/nodeFuncs.c +++ b/src/backend/nodes/nodeFuncs.c @@ -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; |