1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 19eba3c877cb..d41ea27be5e1 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -767,8 +767,11 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
         }
 }
 
-static int ipoib_mcast_addr_is_valid(const u8 *addr, const u8 *broadcast)
+static int ipoib_mcast_addr_is_valid(const u8 *addr, unsigned int addrlen,
+                                     const u8 *broadcast)
 {
+        if (addrlen != INFINIBAND_ALEN)
+                return 0;
         /* reserved QPN, prefix, scope */
         if (memcmp(addr, broadcast, 6))
                 return 0;
@@ -812,6 +815,7 @@ void ipoib_mcast_restart_task(struct work_struct *work)
                 union ib_gid mgid;
 
                 if (!ipoib_mcast_addr_is_valid(mclist->dmi_addr,
+                                               mclist->dmi_addrlen,
                                                dev->broadcast))
                         continue;