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Overview
| Comment: | Take care to avoid integer overflow when doing the initial page cache allocation with an excessively large cache_size setting. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
4d66ac98deaa85218be7ff0eb254f78b |
| User & Date: | drh 2016-10-13 12:56:18 |
Context
|
2016-10-14
| ||
| 10:20 | Version 3.15.0 check-in: 70787558 user: drh tags: trunk, release, version-3.15.0 | |
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2016-10-13
| ||
| 12:56 | Take care to avoid integer overflow when doing the initial page cache allocation with an excessively large cache_size setting. check-in: 4d66ac98 user: drh tags: trunk | |
|
2016-10-12
| ||
| 18:55 | Avoid reading the -1-th element of an array in the query planner. Fix to a bug introduced by check-in [8e2b25f9b8a7] from earlier today. Curiously, the problem only appeared on 32-bit systems. check-in: 443913d5 user: drh tags: trunk | |
Changes
Changes to src/pcache1.c.
275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 |
sqlite3BeginBenignMalloc();
if( pcache1.nInitPage>0 ){
szBulk = pCache->szAlloc * (i64)pcache1.nInitPage;
}else{
szBulk = -1024 * (i64)pcache1.nInitPage;
}
if( szBulk > pCache->szAlloc*(i64)pCache->nMax ){
szBulk = pCache->szAlloc*pCache->nMax;
}
zBulk = pCache->pBulk = sqlite3Malloc( szBulk );
sqlite3EndBenignMalloc();
if( zBulk ){
int nBulk = sqlite3MallocSize(zBulk)/pCache->szAlloc;
int i;
for(i=0; i<nBulk; i++){
|
| |
275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 |
sqlite3BeginBenignMalloc();
if( pcache1.nInitPage>0 ){
szBulk = pCache->szAlloc * (i64)pcache1.nInitPage;
}else{
szBulk = -1024 * (i64)pcache1.nInitPage;
}
if( szBulk > pCache->szAlloc*(i64)pCache->nMax ){
szBulk = pCache->szAlloc*(i64)pCache->nMax;
}
zBulk = pCache->pBulk = sqlite3Malloc( szBulk );
sqlite3EndBenignMalloc();
if( zBulk ){
int nBulk = sqlite3MallocSize(zBulk)/pCache->szAlloc;
int i;
for(i=0; i<nBulk; i++){
|