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Overview
| Comment: | Fix an instance where an uninitialized VM register might be accessed. Fix for [093420fc0]. This problem was found by OSSFuzz. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
a3b02db74681a215996c5ed110eb0ece |
| User & Date: | dan 2018-04-05 16:26:39.633 |
Context
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2018-04-06
| ||
| 16:22 | Fix a problem in the sessions module causing sqlite3session_apply_strm() to allocate enough memory for the entire input buffer - which defeats the point of a streaming interface. (check-in: 7594e60935 user: dan tags: trunk) | |
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2018-04-05
| ||
| 16:26 | Fix an instance where an uninitialized VM register might be accessed. Fix for [093420fc0]. This problem was found by OSSFuzz. (check-in: a3b02db746 user: dan tags: trunk) | |
| 12:02 | Fix the sqlite3WhereTrace mechanism so that it compiles with the --disable-amalgamation and the --enable-debug options to ./configure using clang. (check-in: 813224363d user: drh tags: trunk) | |
Changes
Changes to src/update.c.
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assert( pPk!=0 );
nPk = pPk->nKeyCol;
iPk = pParse->nMem+1;
pParse->nMem += nPk;
regKey = ++pParse->nMem;
iEph = pParse->nTab++;
| | | 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 |
assert( pPk!=0 );
nPk = pPk->nKeyCol;
iPk = pParse->nMem+1;
pParse->nMem += nPk;
regKey = ++pParse->nMem;
iEph = pParse->nTab++;
sqlite3VdbeAddOp3(v, OP_Null, 0, iPk, iPk+nPk-1);
addrOpen = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, iEph, nPk);
sqlite3VdbeSetP4KeyInfo(pParse, pPk);
}
/* Begin the database scan.
**
** Do not consider a single-pass strategy for a multi-row update if
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| ︙ | ︙ |
Changes to test/without_rowid1.test.
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337 338 339 340 341 342 343 344 345 346 |
do_execsql_test 8.1 {
CREATE TABLE t1(x INTEGER PRIMARY KEY UNIQUE, b) WITHOUT ROWID;
CREATE INDEX t1x ON t1(x);
INSERT INTO t1(x,b) VALUES('funny','buffalo');
SELECT type, name, '|' FROM sqlite_master;
} {table t1 | index t1x |}
finish_test
| > > > > > > > > > > > > > | 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 |
do_execsql_test 8.1 {
CREATE TABLE t1(x INTEGER PRIMARY KEY UNIQUE, b) WITHOUT ROWID;
CREATE INDEX t1x ON t1(x);
INSERT INTO t1(x,b) VALUES('funny','buffalo');
SELECT type, name, '|' FROM sqlite_master;
} {table t1 | index t1x |}
# 2018-04-05: OSSFuzz found that the following was accessing an
# unintialized memory cell. Which was not actually causing a
# malfunction, but does cause an assert() to fail.
#
do_execsql_test 9.0 {
CREATE TABLE t2(b, c, PRIMARY KEY(b,c)) WITHOUT ROWID;
CREATE UNIQUE INDEX t2b ON t2(b);
UPDATE t2 SET b=1 WHERE b='';
}
do_execsql_test 10.1 {
DELETE FROM t2 WHERE b=1
}
finish_test
|