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Overview
| Comment: | Fix a potential memory use-after-free problem following an OOM error. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
767ccb1fa11b3e7b895fb8c2e91f79e3 |
| User & Date: | drh 2014-03-04 18:06:04 |
Context
|
2014-03-04
| ||
| 21:00 | Fix a problem with "DEFAULT (-(-9223372036854775808))" clauses in ALTER TABLE ... ADD COLUMN commands. (check-in: e072cb3e user: dan tags: trunk) | |
| 18:06 | Fix a potential memory use-after-free problem following an OOM error. (check-in: 767ccb1f user: drh tags: trunk) | |
| 16:21 | Fix an assert() so that it takes OOM errors into account. (check-in: 53f6ec79 user: drh tags: trunk) | |
Changes
Changes to src/vdbemem.c.
118 119 120 121 122 123 124 125 126 127 128 129 130 131 |
bPreserve = 0;
}else{
sqlite3DbFree(pMem->db, pMem->zMalloc);
pMem->zMalloc = sqlite3DbMallocRaw(pMem->db, n);
}
if( pMem->zMalloc==0 ){
VdbeMemRelease(pMem);
pMem->flags = MEM_Null;
return SQLITE_NOMEM;
}
}
if( pMem->z && bPreserve && pMem->z!=pMem->zMalloc ){
memcpy(pMem->zMalloc, pMem->z, pMem->n);
|
> |
118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 |
bPreserve = 0;
}else{
sqlite3DbFree(pMem->db, pMem->zMalloc);
pMem->zMalloc = sqlite3DbMallocRaw(pMem->db, n);
}
if( pMem->zMalloc==0 ){
VdbeMemRelease(pMem);
pMem->z = 0;
pMem->flags = MEM_Null;
return SQLITE_NOMEM;
}
}
if( pMem->z && bPreserve && pMem->z!=pMem->zMalloc ){
memcpy(pMem->zMalloc, pMem->z, pMem->n);
|