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-rw-r--r--net/ceph/ceph_common.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index ee71ea26777a..1deb29af82fd 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -15,6 +15,8 @@
#include <linux/slab.h>
#include <linux/statfs.h>
#include <linux/string.h>
+#include <linux/nsproxy.h>
+#include <net/net_namespace.h>
#include <linux/ceph/ceph_features.h>
@@ -292,6 +294,9 @@ ceph_parse_options(char *options, const char *dev_name,
int err = -ENOMEM;
substring_t argstr[MAX_OPT_ARGS];
+ if (current->nsproxy->net_ns != &init_net)
+ return ERR_PTR(-EINVAL);
+
opt = kzalloc(sizeof(*opt), GFP_KERNEL);
if (!opt)
return ERR_PTR(-ENOMEM);