This is a note to let you know that I've just added the patch titled
NFS: populate ->net in mount data when remounting
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfs-populate-net-in-mount-data-when-remounting.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a914722f333b3359d2f4f12919380a334176bb89 Mon Sep 17 00:00:00 2001
From: Mateusz Guzik <mguzik@xxxxxxxxxx>
Date: Tue, 10 Jun 2014 12:44:12 +0200
Subject: NFS: populate ->net in mount data when remounting
From: Mateusz Guzik <mguzik@xxxxxxxxxx>
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 <mguzik@xxxxxxxxxx>
Cc: linux-nfs@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/nfs/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2246,6 +2246,7 @@ nfs_remount(struct super_block *sb, int
data->nfs_server.addrlen = nfss->nfs_client->cl_addrlen;
data->version = nfsvers;
data->minorversion = nfss->nfs_client->cl_minorversion;
+ data->net = current->nsproxy->net_ns;
memcpy(&data->nfs_server.address, &nfss->nfs_client->cl_addr,
data->nfs_server.addrlen);
Patches currently in stable-queue which might be from mguzik@xxxxxxxxxx are
queue-3.14/nfs-populate-net-in-mount-data-when-remounting.patch
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