Return-Path: linux-nfs-owner@vger.kernel.org Received: from youngberry.canonical.com ([91.189.89.112]:59863 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750755AbaFZKgz (ORCPT ); Thu, 26 Jun 2014 06:36:55 -0400 From: Luis Henriques To: Mateusz Guzik Cc: linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, Trond Myklebust , Luis Henriques , kernel-team@lists.ubuntu.com Subject: [3.11.y.z extended stable] Patch "NFS: populate ->net in mount data when remounting" has been added to staging queue Date: Thu, 26 Jun 2014 11:36:52 +0100 Message-Id: <1403779012-12350-1-git-send-email-luis.henriques@canonical.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: This is a note to let you know that I have just added a patch titled NFS: populate ->net in mount data when remounting to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.11.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ >From a544eeb67d3723b24eed458549e60cfa9221c7df Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Tue, 10 Jun 2014 12:44:12 +0200 Subject: NFS: populate ->net in mount data when remounting commit a914722f333b3359d2f4f12919380a334176bb89 upstream. Otherwise the kernel oopses when remounting with IPv6 server because net is dereferenced in dev_get_by_name. Use net ns of current thread so that dev_get_by_name does not operate on foreign ns. Changing the address is prohibited anyway so this should not affect anything. Signed-off-by: Mateusz Guzik Cc: linux-nfs@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Trond Myklebust [ luis: backported to 3.11: adjusted context ] Signed-off-by: Luis Henriques --- fs/nfs/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index f6db66d8f647..928bb8c1680e 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2178,6 +2178,7 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data) data->timeo = 10U * nfss->client->cl_timeout->to_initval / HZ; data->nfs_server.port = nfss->port; data->nfs_server.addrlen = nfss->nfs_client->cl_addrlen; + data->net = current->nsproxy->net_ns; memcpy(&data->nfs_server.address, &nfss->nfs_client->cl_addr, data->nfs_server.addrlen); -- 1.9.1