Merge branch 'tcp-receiver-changes'

Eric Dumazet says:

====================
tcp: receiver changes

Before accepting an incoming packet:

- Make sure to not accept a packet beyond advertized RWIN.
  If not, increment a new SNMP counter (LINUX_MIB_BEYOND_WINDOW)

- ooo packets should update rcv_mss and tp->scaling_ratio.

- Make sure to not accept packet beyond sk_rcvbuf limit.

This series includes three associated packetdrill tests.
====================

Link: https://patch.msgid.link/20250711114006.480026-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>