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>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index dcfbab177faa..f36630e4b6be 100644
--- 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;