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| author | Noah Misch <noah@leadboat.com> | 2015-10-05 10:06:30 -0400 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2015-10-05 10:06:35 -0400 |
| commit | 879877b00bb54ba9dcdef0d218bd36c4e5404d6f (patch) | |
| tree | 54cea9388658325b24a7e9727d1f69a63807843d /src/backend/utils | |
| parent | 9581e2699f6379e29151b0bef04ca45a06f5afe0 (diff) | |
| download | postgresql-879877b00bb54ba9dcdef0d218bd36c4e5404d6f.tar.gz postgresql-879877b00bb54ba9dcdef0d218bd36c4e5404d6f.zip | |
Prevent stack overflow in query-type functions.
The tsquery, ltxtquery and query_int data types have a common ancestor.
Having acquired check_stack_depth() calls independently, each was
missing at least one call. Back-patch to 9.0 (all supported versions).
Diffstat (limited to 'src/backend/utils')
| -rw-r--r-- | src/backend/utils/adt/tsquery_cleanup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/utils/adt/tsquery_cleanup.c b/src/backend/utils/adt/tsquery_cleanup.c index 9feb4b796a6..dd48e85731d 100644 --- a/src/backend/utils/adt/tsquery_cleanup.c +++ b/src/backend/utils/adt/tsquery_cleanup.c @@ -34,6 +34,9 @@ maketree(QueryItem *in) { NODE *node = (NODE *) palloc(sizeof(NODE)); + /* since this function recurses, it could be driven to stack overflow. */ + check_stack_depth(); + node->valnode = in; node->right = node->left = NULL; if (in->type == QI_OPR) |