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 <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected] # 3.4+
---
fs/nfs/super.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 2cb5694..104ef01 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2248,6 +2248,7 @@ 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);
--
1.8.3.1