lib-auth: Don't leave stale pointers to stack lying around in memory.

diff --git a/src/lib-auth/auth-master.c b/src/lib-auth/auth-master.c
index 3a7d35742141c7520b0eec945d40da6df71a6e67..b59765cbc66b1e164fe04a9c7f29e3daa2af4e07 100644 (file)
--- a/src/lib-auth/auth-master.c
+++ b/src/lib-auth/auth-master.c
@@ -517,6 +517,7 @@ int auth_master_user_lookup(struct auth_master_connection *conn,
                *username_r = ctx.fields[0];
                *fields_r = ctx.fields + 1;
        }
+       conn->reply_context = NULL;
        return ctx.return_value;
 }
 
@@ -583,6 +584,7 @@ int auth_master_pass_lookup(struct auth_master_connection *conn,
 
        *fields_r = ctx.fields != NULL ? ctx.fields :
                p_new(pool, const char *, 1);
+       conn->reply_context = NULL;
        return ctx.return_value;
 }
 
@@ -625,6 +627,7 @@ int auth_master_cache_flush(struct auth_master_connection *conn,
        (void)auth_master_run_cmd(conn, str_c(str));
        conn->prefix = DEFAULT_USERDB_LOOKUP_PREFIX;
 
+       conn->reply_context = NULL;
        return *count_r == UINT_MAX ? -1 : 0;
 }
 
@@ -687,6 +690,7 @@ auth_master_user_list_init(struct auth_master_connection *conn,
                ctx->failed = TRUE;
        io_loop_set_current(conn->prev_ioloop);
        conn->prefix = DEFAULT_USERDB_LOOKUP_PREFIX;
+       conn->reply_context = NULL;
        return ctx;
 }