On Fri, 2019-06-28 at 11:03 -0700, Cong Wang wrote: > Similarly, other callers of idr_get_next_ul() suffer the same > overflow bug as they don't handle it properly either. > > Introduce idr_for_each_entry_continue_ul() to help these callers > iterate from a given ID. > > cls_flower needs more care here because it still has overflow when > does arg->cookie++, we have to fold its nested loops into one > and remove the arg->cookie++.
hello Cong, I confirm that this patch fixes the infinite loop when dumping TC flower rule with handle 0xffffffff on kernel 5.2.0-0.rc5.git0.1.fc31.i686. Tested-by: Davide Caratti <dcara...@redhat.com> thanks! -- davide
