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Prevent potential segfault in the sqlite-expert idxPopulateStat1 context cleanup code.

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FossilOrigin-Name: c24f13448b5a55f45b4d4786a878fa73fe3395b5724f3bc2eea22e5e2b074353
This commit is contained in:
mistachkin
2020-12-02 20:07:49 +00:00
parent 64f1ef6abd
commit 4338000d47
3 changed files with 13 additions and 11 deletions
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8
ext/expert/sqlite3expert.c
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@ -1721,10 +1721,12 @@ static int idxPopulateStat1(sqlite3expert *p, char **pzErr){
idxFinalize(&rc, pIndexXInfo);
idxFinalize(&rc, pWrite);
for(i=0; i<pCtx->nSlot; i++){
sqlite3_free(pCtx->aSlot[i].z);
if( pCtx ){
for(i=0; i<pCtx->nSlot; i++){
sqlite3_free(pCtx->aSlot[i].z);
}
sqlite3_free(pCtx);
}
sqlite3_free(pCtx);
if( rc==SQLITE_OK ){
rc = sqlite3_exec(p->dbm, "ANALYZE sqlite_schema", 0, 0, 0);