auth: mech-oauth2 - Use the iterated passdb in oauth2_find_oidc_url()

Fixes a crash when oauth2 passdb is not first. Broken in
59647f483c49c9e54c43cade168bf10f44a49292

diff --git a/src/auth/mech-oauth2.c b/src/auth/mech-oauth2.c
index dae563291d73c82ed2ab450fe8462d938c4f8167..fc6224824e029d60446e5160d4957e151efaa3af 100644 (file)
--- a/src/auth/mech-oauth2.c
+++ b/src/auth/mech-oauth2.c
@@ -26,7 +26,7 @@ static bool oauth2_find_oidc_url(struct auth_request *req, const char **url_r)
        for (; db != NULL; db = db->next) {
                if (strcmp(db->passdb->iface.name, "oauth2") == 0) {
                        const char *url =
-                               passdb_oauth2_get_oidc_url(req->passdb->passdb);
+                               passdb_oauth2_get_oidc_url(db->passdb);
                        if (url == NULL || *url == '\0')
                                continue;
                        *url_r = url;