database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-12 13:01:09 +03:00
Code Activity

Extra defense against problems following an OOM. dbsqlfuzz find. Also

Browse Source 
import the latest dbsqlfuzz test cases.

FossilOrigin-Name: 0a70f5ddaf3567f335cc0fd0fcd5303e2afb5e38a6388faddf5cab1f2a74e3dd
This commit is contained in:
drh
2019-12-24 15:01:17 +00:00
parent c26e78d275
commit 4eac5f04ab
4 changed files with 13 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/expr.c
View File

@@ -2207,7 +2207,9 @@ int sqlite3ExprCanBeNull(const Expr *p){
case TK_COLUMN:
return ExprHasProperty(p, EP_CanBeNull) ||
p->y.pTab==0 || /* Reference to column of index on expression */
(p->iColumn>=0 && p->y.pTab->aCol[p->iColumn].notNull==0);
(p->iColumn>=0
&& ALWAYS(p->y.pTab->aCol!=0) /* Defense against OOM problems */
&& p->y.pTab->aCol[p->iColumn].notNull==0);
default:
return 1;
}
@@ -3224,6 +3226,7 @@ static void sqlite3ExprCodeIN(
}else{
destStep2 = destStep6 = sqlite3VdbeMakeLabel(pParse);
}
if( pParse->nErr ) goto sqlite3ExprCodeIN_finished;
for(i=0; i<nVector; i++){
Expr *p = sqlite3VectorFieldSubexpr(pExpr->pLeft, i);
if( sqlite3ExprCanBeNull(p) ){