| Ticket Hash: | e9a9fde1f4a2c1ef4e5b06ede806728df84c3917 | |||
| Title: | rtree module malfunctions if db page-size is changed | |||
| Status: | Fixed | Type: | Code_Defect | |
| Severity: | Critical | Priority: | Immediate | |
| Subsystem: | Extensions | Resolution: | Fixed | |
| Last Modified: | 2010-02-16 11:00:22 | |||
| Version Found In: | 3.6.22 | |||
| Description: | ||||
The following script causes a buffer overread: <verbatim> PRAGMA page_size = 1024; CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2, y1, y2); INSERT INTO rt VALUES(1, 2, 3, 4, 5); PRAGMA page_size = 2048; VACUUM; SELECT * FROM rt; </verbatim> as the r-tree code assumes that the node-size used in the r-tree structures is a function of the database page size. | ||||