Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965350AbaGCJxt (ORCPT ); Thu, 3 Jul 2014 05:53:49 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:52120 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965071AbaGCJX3 (ORCPT ); Thu, 3 Jul 2014 05:23:29 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Mateusz Guzik , linux-nfs@vger.kernel.org, Trond Myklebust , Luis Henriques Subject: [PATCH 3.11 113/198] NFS: populate ->net in mount data when remounting Date: Thu, 3 Jul 2014 10:19:16 +0100 Message-Id: <1404379241-8590-114-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1404379241-8590-1-git-send-email-luis.henriques@canonical.com> References: <1404379241-8590-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.11 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.11.10.13 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Mateusz Guzik 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/