RDMA/cxgb3: Fix information leak in send_abort()

The cpl_abort_req struct has several reserved members which need to be
cleared to avoid disclosing kernel information.  I have added a memset()
so now it matches the cxgb4 version of this function.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index 095bb046e2c82eb8ded011eba72a486b376b444f..cb78b1e9bcd9ec3035884e3c0c6504bf317dbfc8 100644 (file)
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -418,6 +418,7 @@ static int send_abort(struct iwch_ep *ep, struct sk_buff *skb, gfp_t gfp)
        skb->priority = CPL_PRIORITY_DATA;
        set_arp_failure_handler(skb, abort_arp_failure);
        req = (struct cpl_abort_req *) skb_put(skb, sizeof(*req));
+       memset(req, 0, sizeof(*req));
        req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_REQ));
        req->wr.wr_lo = htonl(V_WR_TID(ep->hwtid));
        OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ABORT_REQ, ep->hwtid));