Hi, this series restores the ability to accept in‑sequence FIN packets even when the advertised receive window is zero, and adds a packetdrill test to guard the behavior.
Signed-off-by: Simon Baatz <[email protected]> --- Changes in v2: - Move the FIN handling out of the default execution path as suggested by Eric Dumazet - Link to v1: https://lore.kernel.org/r/[email protected] --- Simon Baatz (2): tcp: re-enable acceptance of FIN packets when RWIN is 0 selftests/net: packetdrill: Verify acceptance of FIN packets when RWIN is 0 net/ipv4/tcp_input.c | 18 +++++++++++---- .../net/packetdrill/tcp_rcv_zero_wnd_fin.pkt | 27 ++++++++++++++++++++++ 2 files changed, 41 insertions(+), 4 deletions(-) --- base-commit: d4f687fbbce45b5e88438e89b5e26c0c15847992 change-id: 20260221-fix_zero_wnd_fin-d1ba11cd3b07 Best regards, -- Simon Baatz <[email protected]>
