From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f51.google.com ([74.125.82.51]:54401 "EHLO mail-wm0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933814AbeFZNME (ORCPT ); Tue, 26 Jun 2018 09:12:04 -0400 Received: by mail-wm0-f51.google.com with SMTP id i139-v6so1865446wmf.4 for ; Tue, 26 Jun 2018 06:12:03 -0700 (PDT) Message-ID: <1530018719.25759.22.camel@gmail.com> Subject: stable request: Revert "sit: reload iphdr in ipip6_rcv" From: Luca Boccassi To: stable@vger.kernel.org Cc: davem@davemloft.net, yanhaishuang@cmss.chinamobile.com Date: Tue, 26 Jun 2018 14:11:59 +0100 Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-Lt+IEKwYsu2kwj2DG452" Mime-Version: 1.0 Sender: stable-owner@vger.kernel.org List-ID: --=-Lt+IEKwYsu2kwj2DG452 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, Please consider backporting to 4.9.y the following commit from DaveM [CC'ed]: f4eb17e1efe538d4da7d574bedb00a8dafcc26b7 ("Revert "sit: reload iphdr in ip= ip6_rcv"") It cherry-picks cleanly and builds fine. The original commit was introduced and reverted in v4.12-rc5, but only the original made its way into the 4.9 stable release (v4.9.94). It causes a regression: pings to v6 hosts over a SIT tunnel do not work anymore, and the following error appears in dmesg: kernel: sit: non-ECT from 0.0.0.0 with TOS=3D0xd This was also reported and reverted downstream by Ubuntu: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772775 Thanks! --=20 Kind regards, Luca Boccassi --=-Lt+IEKwYsu2kwj2DG452 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEE6g0RLAGYhL9yp9G8SylmgFB4UWIFAlsyO58ACgkQSylmgFB4 UWItDAf9FeydYSyCYOwV8UdRlWIfUmesnPTP238iRR4wHWQdBEq1XOf6J7a89/hY jLcisrrRgkohb8Vw3qTd6EtOUYBXnzu2HDIpFt++1zw5xTcbC8uHoZd4kASn2vMi xvTlrtRSYq+zyZz+3GI86FEWjvuTgx3uVu9T4wd0brj7V/8IrPbT/NYc4sUcDEId R4eHxN/xMd+QEFl3pS1BZ3QK/05kBL7H41GkN0sZUVZF9LhATYV3HqUa89y7RBzk R3REAI45nRfiVQbPKI/bcZA3lyAl05s7lkt5jrgAioqnki5NnXbJ66vLV00bO6Pe 13wjreusLFKYpaDmBXPa/o3qIZc6UQ== =ts1A -----END PGP SIGNATURE----- --=-Lt+IEKwYsu2kwj2DG452--