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Overview
| Comment: | Add a missing memAboutToChange() macro to vdbe.c, the lack of which was causing an assert() to fail incorrectly. Problem found by libfuzzer. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1a24791109da607d502ac41f179fe6c1 |
| User & Date: | dan 2015-12-14 19:42:19.129 |
Context
|
2015-12-15
| ||
| 13:50 | Add the SQLITE_OMIT_PARSER_TRACE compile-time option. (check-in: 2fda43e6e0 user: drh tags: trunk) | |
|
2015-12-14
| ||
| 19:42 | Add a missing memAboutToChange() macro to vdbe.c, the lack of which was causing an assert() to fail incorrectly. Problem found by libfuzzer. (check-in: 1a24791109 user: dan tags: trunk) | |
|
2015-12-11
| ||
| 14:59 | Add a new assert() statement to the snapshot-specific part of sqlite3WalBeginReadTrans(). (check-in: d8a12023be user: dan tags: trunk) | |
Changes
Changes to src/vdbe.c.
| ︙ | ︙ | |||
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 |
}else{
/* SQLITE_NULLEQ is clear and at least one operand is NULL,
** then the result is always NULL.
** The jump is taken if the SQLITE_JUMPIFNULL bit is set.
*/
if( pOp->p5 & SQLITE_STOREP2 ){
pOut = &aMem[pOp->p2];
MemSetTypeFlag(pOut, MEM_Null);
REGISTER_TRACE(pOp->p2, pOut);
}else{
VdbeBranchTaken(2,3);
if( pOp->p5 & SQLITE_JUMPIFNULL ){
goto jump_to_p2;
}
| > | 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 |
}else{
/* SQLITE_NULLEQ is clear and at least one operand is NULL,
** then the result is always NULL.
** The jump is taken if the SQLITE_JUMPIFNULL bit is set.
*/
if( pOp->p5 & SQLITE_STOREP2 ){
pOut = &aMem[pOp->p2];
memAboutToChange(p, pOut);
MemSetTypeFlag(pOut, MEM_Null);
REGISTER_TRACE(pOp->p2, pOut);
}else{
VdbeBranchTaken(2,3);
if( pOp->p5 & SQLITE_JUMPIFNULL ){
goto jump_to_p2;
}
|
| ︙ | ︙ |
Changes to test/with1.test.
| ︙ | ︙ | |||
970 971 972 973 974 975 976 977 978 |
WITH
x1 AS (SELECT 12),
x2 AS (SELECT 13)
SELECT * FROM x3
)
SELECT * FROM x4;
} {10 11}
finish_test
| > > > > > > > > > > > > > > > > | 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 |
WITH
x1 AS (SELECT 12),
x2 AS (SELECT 13)
SELECT * FROM x3
)
SELECT * FROM x4;
} {10 11}
# Added to test a fix to a faulty assert() discovered by libFuzzer.
#
do_execsql_test 18.1 {
WITH xyz(x) AS (VALUES(NULL) UNION SELECT round(1<x) FROM xyz ORDER BY 1)
SELECT quote(x) FROM xyz;
} {NULL}
do_execsql_test 18.2 {
WITH xyz(x) AS (
SELECT printf('%d', 5) * NULL
UNION SELECT round(1<1+x)
FROM xyz ORDER BY 1
)
SELECT 1 FROM xyz;
} 1
finish_test
|