diff --git a/drivers/staging/prima/CORE/SVC/src/ptt/wlan_ptt_sock_svc.c b/drivers/staging/prima/CORE/SVC/src/ptt/wlan_ptt_sock_svc.c
index 465426e4395..04d41d3e7d7 100644
--- a/drivers/staging/prima/CORE/SVC/src/ptt/wlan_ptt_sock_svc.c
+++ b/drivers/staging/prima/CORE/SVC/src/ptt/wlan_ptt_sock_svc.c
@@ -293,6 +293,11 @@ static int ptt_sock_rx_nlink_msg (struct sk_buff * skb)
    wnl = (tAniNlHdr *) skb->data;
    radio = wnl->radio;
    type = wnl->nlh.nlmsg_type;
+
+   if (wnl->nlh.nlmsg_len < (sizeof(struct nlmsghdr) +
+       sizeof(int) + sizeof(tAniHdr) + wnl->wmsg.length))
+	   return -EINVAL;
+
    switch (type) {
       case ANI_NL_MSG_PUMAC:  //Message from the PTT socket APP
          PTT_TRACE(VOS_TRACE_LEVEL_INFO, "%s: Received ANI_NL_MSG_PUMAC Msg [0x%X]\n",