On Wed, Feb 22, 2023 at 7:25 AM Hangyu Hua <hbh25y@xxxxxxxxx> wrote: > > A useless record can be insert into av_records when dccp_insert_options() > fails after dccp_insert_option_ackvec(). Repeated triggering may cause > av_records to have a lot of useless record with the same avr_ack_seqno. Do you have a repro for this bug ? It is not clear if this can actually happen. Presumably skb are sized so that they can hold all possible standard DCCP options. DCCP_MAX_OPT_LEN is 992 bytes. Fact that your first patch was not even compiled is not giving us a good signal.
