Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
Comment: | Early-out on the INTERSECT query processing following an out-of-memory error. This fixes a potential null pointer dereference found by sakura(@eternalsakura13) of Alpha Team, Qihoo 360. |
---|---|
Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
a67cf5b7d37d5b1484be32092635faaf |
User & Date: | drh 2020-02-20 14:08:51 |
Original Comment: | Early-out on the INTERSECT query processing following an error. |
Context
2020-02-20
| ||
14:11 | Add test case for previous commit. (check-in: 14d14eb5 user: dan tags: trunk) | |
14:08 | Early-out on the INTERSECT query processing following an out-of-memory error. This fixes a potential null pointer dereference found by sakura(@eternalsakura13) of Alpha Team, Qihoo 360. (check-in: a67cf5b7 user: drh tags: trunk) | |
2020-02-19
| ||
15:39 | Fix a potential NULL pointer dereference following OOM. Problem discovered by dbsqlfuzz. Test case in TH3. (check-in: 5aeb5a2d user: drh tags: trunk) | |
Changes
Changes to src/select.c.
︙ | ︙ | |||
2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 | } sqlite3ExprDelete(db, p->pLimit); p->pLimit = pLimit; /* Generate code to take the intersection of the two temporary ** tables. */ assert( p->pEList ); iBreak = sqlite3VdbeMakeLabel(pParse); iCont = sqlite3VdbeMakeLabel(pParse); computeLimitRegisters(pParse, p, iBreak); sqlite3VdbeAddOp2(v, OP_Rewind, tab1, iBreak); VdbeCoverage(v); r1 = sqlite3GetTempReg(pParse); iStart = sqlite3VdbeAddOp2(v, OP_RowData, tab1, r1); | > | 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 | } sqlite3ExprDelete(db, p->pLimit); p->pLimit = pLimit; /* Generate code to take the intersection of the two temporary ** tables. */ if( rc ) break; assert( p->pEList ); iBreak = sqlite3VdbeMakeLabel(pParse); iCont = sqlite3VdbeMakeLabel(pParse); computeLimitRegisters(pParse, p, iBreak); sqlite3VdbeAddOp2(v, OP_Rewind, tab1, iBreak); VdbeCoverage(v); r1 = sqlite3GetTempReg(pParse); iStart = sqlite3VdbeAddOp2(v, OP_RowData, tab1, r1); |
︙ | ︙ |