On Fri, Oct 23, 2020 at 1:14 PM Ricardo Dias <[email protected]> wrote: > > When the TCP stack is in SYN flood mode, the server child socket is > created from the SYN cookie received in a TCP packet with the ACK flag > set. > ...
This patch only handles IPv4, unless I am missing something ? It looks like the fix should be done in inet_ehash_insert(), not adding yet another helper in TCP. This would be family generic. Note that normally, all packets for the same 4-tuple should be handled by the same cpu, so this race is quite unlikely to happen in standard setups.
