diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 7bd27c2fc872..7d65a8114816 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -385,6 +385,8 @@ static int decode_choose_args(void **p, void *end, struct crush_map *c)
 				goto e_inval;
 
 			arg = &arg_map->args[bucket_index];
+			if (arg->ids || arg->weight_set)
+				goto e_inval;
 			ret = decode_choose_arg(p, end, arg);
 			if (ret)
 				goto fail;