RDMA/ocrdma: Fix several stack info leaks

A grab bag of places which don't properly initialize stack data.  I
removed one place which cleared ".rsvd" because it's not needed now
that I have added a memset() earlier in the function.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index dcfbab177faa63eee063a428ac7848e5763f8125..f36630e4b6be182c735b7aa81d357b4207266c82 100644 (file)
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -242,6 +242,7 @@ struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
        memset(ctx->ah_tbl.va, 0, map_len);
        ctx->ah_tbl.len = map_len;
 
+       memset(&resp, 0, sizeof(resp));
        resp.ah_tbl_len = ctx->ah_tbl.len;
        resp.ah_tbl_page = ctx->ah_tbl.pa;
 
@@ -253,7 +254,6 @@ struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
        resp.wqe_size = dev->attr.wqe_size;
        resp.rqe_size = dev->attr.rqe_size;
        resp.dpp_wqe_size = dev->attr.wqe_size;
-       resp.rsvd = 0;
 
        memcpy(resp.fw_ver, dev->attr.fw_ver, sizeof(resp.fw_ver));
        status = ib_copy_to_udata(udata, &resp, sizeof(resp));
@@ -338,6 +338,7 @@ static int ocrdma_copy_pd_uresp(struct ocrdma_pd *pd,
        struct ocrdma_alloc_pd_uresp rsp;
        struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ib_ctx);
 
+       memset(&rsp, 0, sizeof(rsp));
        rsp.id = pd->id;
        rsp.dpp_enabled = pd->dpp_enabled;
        db_page_addr = pd->dev->nic_info.unmapped_db +
@@ -692,6 +693,7 @@ static int ocrdma_copy_cq_uresp(struct ocrdma_cq *cq, struct ib_udata *udata,
        struct ocrdma_ucontext *uctx;
        struct ocrdma_create_cq_uresp uresp;
 
+       memset(&uresp, 0, sizeof(uresp));
        uresp.cq_id = cq->id;
        uresp.page_size = cq->len;
        uresp.num_pages = 1;
@@ -1460,6 +1462,7 @@ static int ocrdma_copy_srq_uresp(struct ocrdma_srq *srq, struct ib_udata *udata)
        int status;
        struct ocrdma_create_srq_uresp uresp;
 
+       memset(&uresp, 0, sizeof(uresp));
        uresp.rq_dbid = srq->rq.dbid;
        uresp.num_rq_pages = 1;
        uresp.rq_page_addr[0] = srq->rq.pa;