summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMateusz Guzik <mguzik@redhat.com>2014-06-10 12:44:12 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-06 18:57:28 -0700
commit3ae785848a892b29ab25bcda2c88999ab284df29 (patch)
tree4dc870fc5147eb08b7343cd12e450ad89f7762b4
parent02c098bcaa5f7bf7f185ea9abca526b4d5cf7131 (diff)
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/nfs/super.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 910ed906eb82..05c3a6e6518d 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);