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 | 3af726a1f3bfccd0db3ea15c72e2df4943a17180 (patch) | |
| tree | 0a4a1320c9b69e2ec06527f3b6bc654a1abf25f8 /src/backend/nodes/readfuncs.c | |
| parent | 3a691f8a25a8c71c00918ee1694186de2d928c96 (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/readfuncs.c')
| -rw-r--r-- | src/backend/nodes/readfuncs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c index 1ec4f3c6956..6498541d4ac 100644 --- a/src/backend/nodes/readfuncs.c +++ b/src/backend/nodes/readfuncs.c @@ -28,6 +28,7 @@ #include <math.h> +#include "miscadmin.h" #include "nodes/parsenodes.h" #include "nodes/readfuncs.h" @@ -1292,6 +1293,9 @@ 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) \ |