Ali Abdallah <ali.abdallah@xxxxxxxx> wrote: > In 'commit b303e7b80ff1 ("Reset the max ACK flag on SYN in ignore state")' > we reset the max ACK number to avoid dropping valid RST that is a > response to a SYN. > > Unfortunately that might not be enough, an out of order ACK in origin > might reset it back, and we might end up again dropping valid RST. > > This patch disables the RST check when we are not in established state > and we receive an RST with SEQ=0 that is most likely a response to a > SYN we had let it go through. > > Signed-off-by: Ali Abdallah <aabdallah@xxxxxxx> Looks good, thanks! Acked-by: Florian Westphal <fw@xxxxxxxxx>