Opened 15 years ago
Closed 15 years ago
#2996 closed defect (fixed)
OGR expression parser causes access violations with large expressions
| Reported by: | tamas | Owned by: | tamas |
|---|---|---|---|
| Priority: | normal | Milestone: | 1.6.2 |
| Component: | default | Version: | unspecified |
| Severity: | normal | Keywords: | |
| Cc: |
Description
Currently the expression tokenizer has a limitation of max 1024 tokens stored in a preallocated array. When reaching the upper limit an access violation may occur due to some incorrect hanglings when the sub-expressions are processed. The following patch aims to remove this limit and prevent from these errors. I should also be considered to minimize the recursion level as much as possible to prevent from the potential stack overflow in the future.
Attachments (1)
Change History (3)
by , 15 years ago
| Attachment: | swq.c.patch added |
|---|
comment:1 by , 15 years ago
| Milestone: | 1.6.1 → 1.6.2 |
|---|
comment:2 by , 15 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
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Applied the fix in r17020 and r17018