In the Linux kernel, the following vulnerability has been resolved:
iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()
This condition needs to match the previous if (epcp->state == LISTEN) { exactly to avoid a NULL dereference of either listen_ep or ep. The problem is that epcp has been re-assigned so just testing if (epcp->state == LISTEN) { a second time is not sufficient.