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2018-04-06
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| 12:55 | • Fixed ticket [093420fc]: Virtual Machine references an uninitialized register plus 5 other changes (artifact: 31842ae5 user: drh) | |
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2018-04-05
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| 16:26 | Fix an instance where an uninitialized VM register might be accessed. Fix for [093420fc0]. This problem was found by OSSFuzz. (check-in: a3b02db7 user: dan tags: trunk) | |
| 11:47 | • New ticket [093420fc] Virtual Machine references an uninitialized register. (artifact: 4524671d user: drh) | |
| Ticket Hash: | 093420fc0eb7cba77b05230b2e79f27c74d91dcc | |||
| Title: | Virtual Machine references an uninitialized register | |||
| Status: | Fixed | Type: | Code_Defect | |
| Severity: | Important | Priority: | Immediate | |
| Subsystem: | Unknown | Resolution: | Fixed | |
| Last Modified: | 2018-04-06 12:55:10 | |||
| Version Found In: | 3.23.0 | |||
| User Comments: | ||||
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drh added on 2018-04-05 11:47:39:
In the following SQL, the virtual machine references an uninitialized register. This is harmless, but it still needs to be fixed. CREATE TABLE t1(b, c, PRIMARY KEY(b,c)) WITHOUT ROWID; CREATE UNIQUE INDEX t1b ON t1(b); UPDATE t1 SET b=1 WHERE b=''; This problem has existed in the code since support for WITHOUT ROWID tables was added with SQLite 3.8.2 (2013-12-06). The problem was discovered by OSSFuzz. | ||||