diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index 98ba4c4..a6fa05b 100755
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -2912,7 +2912,8 @@
 
            len = scnprintf(extra, sizeof(extra), "%s %d",
                    "GETFASTTRANSITION", ft);
-           if (copy_to_user(priv_data.buf, &extra, len + 1))
+           len = VOS_MIN(priv_data.total_len, len + 1);
+           if (copy_to_user(priv_data.buf, &extra, len))
            {
                VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
                   "%s: failed to copy data to user buffer", __func__);