1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index b4d8672a3e4e..056389229ea7 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -1596,6 +1596,9 @@ find_mad_agent(struct ib_mad_port_private *port_priv,
                                         mad->mad_hdr.class_version].class;
                         if (!class)
                                 goto out;
+                        if (convert_mgmt_class(mad->mad_hdr.mgmt_class) >=
+                            IB_MGMT_MAX_METHODS)
+                                goto out;
                         method = class->method_table[convert_mgmt_class(
                                                         mad->mad_hdr.mgmt_class)];
                         if (method)