Fixed possible memory corruption.

diff --git a/ext/pdo_sqlite/sqlite_driver.c b/ext/pdo_sqlite/sqlite_driver.c
index a046969b2d095c11624c11e53952864e0453b9f6..d53dfa8c1a943feae33e1d6fd892f2cedfd5c8f9 100644 (file)
--- a/ext/pdo_sqlite/sqlite_driver.c
+++ b/ext/pdo_sqlite/sqlite_driver.c
@@ -42,7 +42,10 @@ int _pdo_sqlite_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int li
        einfo->line = line;
 
        if (einfo->errcode != SQLITE_OK) {
-               einfo->errmsg = (char*)sqlite3_errmsg(H->db);
+               if (einfo->errmsg) {
+                       efree(einfo->errmsg);
+               }
+               einfo->errmsg = estrdup((char*)sqlite3_errmsg(H->db));
        } else { /* no error */
                strcpy(*pdo_err, PDO_ERR_NONE);
                return 0;
@@ -133,11 +136,17 @@ static int sqlite_handle_closer(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
        pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
        
        if (H) {
+               pdo_sqlite_error_info *einfo = &H->einfo;
+
                pdo_sqlite_cleanup_callbacks(H TSRMLS_CC);
                if (H->db) {
                        sqlite3_close(H->db);
                        H->db = NULL;
                }
+               if (einfo->errmsg) {
+                       efree(einfo->errmsg);
+                       einfo->errmsg = NULL;
+               }
                pefree(H, dbh->is_persistent);
                dbh->driver_data = NULL;
        }