Messages in this thread Patch in this message | | | From | Kamal Mostafa <> | Subject | [3.13.y.z extended stable] Patch "NFS: populate ->net in mount data when remounting" has been added to staging queue | Date | Tue, 15 Jul 2014 14:29:39 -0700 |
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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-3.13.y-queue branch of the 3.13.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-3.13.y-queue
This patch is scheduled to be released in version 3.13.11.5.
If you, or anyone else, feels it should not be added to this tree, please reply to this email.
For more information about the 3.13.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks. -Kamal
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From 11011b30354f55150938e36cda49de819ca70ac8 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik <mguzik@redhat.com> 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 <mguzik@redhat.com> Cc: linux-nfs@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- fs/nfs/super.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 910ed90..05c3a6e 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2246,6 +2246,7 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data) 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);
-- 1.9.1
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