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Overview
Comment: | Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | branch-3.18 |
Files: | files | file ages | folders |
SHA3-256: |
b54aa18b0fe4d683c602ed2ba59ded6c |
User & Date: | dan 2019-09-03 19:40:52 |
Context
2019-09-03
| ||
19:40 | Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (Leaf check-in: b54aa18b user: dan tags: branch-3.18) | |
17:46 | Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 0a1cce49 user: drh tags: branch-3.18) | |
2019-03-18
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15:49 | Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (check-in: b3fa58dd user: dan tags: trunk) | |
Changes
Changes to ext/fts5/fts5_hash.c.
︙ | ︙ | |||
434 435 436 437 438 439 440 | ap = sqlite3_malloc(sizeof(Fts5HashEntry*) * nMergeSlot); if( !ap ) return SQLITE_NOMEM; memset(ap, 0, sizeof(Fts5HashEntry*) * nMergeSlot); for(iSlot=0; iSlot<pHash->nSlot; iSlot++){ Fts5HashEntry *pIter; for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){ | > | > | 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 | ap = sqlite3_malloc(sizeof(Fts5HashEntry*) * nMergeSlot); if( !ap ) return SQLITE_NOMEM; memset(ap, 0, sizeof(Fts5HashEntry*) * nMergeSlot); for(iSlot=0; iSlot<pHash->nSlot; iSlot++){ Fts5HashEntry *pIter; for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){ if( pTerm==0 || (strlen(pIter->zKey)>=nTerm && 0==memcmp(pIter->zKey, pTerm, nTerm)) ){ Fts5HashEntry *pEntry = pIter; pEntry->pScanNext = 0; for(i=0; ap[i]; i++){ pEntry = fts5HashEntryMerge(pEntry, ap[i]); ap[i] = 0; } ap[i] = pEntry; |
︙ | ︙ |
Changes to ext/fts5/test/fts5aa.test.
︙ | ︙ | |||
556 557 558 559 560 561 562 563 564 565 566 567 568 569 | ] do_test 20.1 { foreach id $::ids { execsql { INSERT INTO tmp(rowid, x) VALUES($id, 'x y z') } } execsql { SELECT rowid FROM tmp WHERE tmp MATCH 'y' } } $::ids } finish_test | > > > > > > > > > > > > > | 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 | ] do_test 20.1 { foreach id $::ids { execsql { INSERT INTO tmp(rowid, x) VALUES($id, 'x y z') } } execsql { SELECT rowid FROM tmp WHERE tmp MATCH 'y' } } $::ids #------------------------------------------------------------------------- do_execsql_test 25.0 { CREATE VIRTUAL TABLE t13 USING fts5(x, detail=%DETAIL%); } do_execsql_test 25.1 { BEGIN; INSERT INTO t13 VALUES('AAAA'); SELECT * FROM t13('BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB*'); END; } } finish_test |