From ae1fe07f3f422c62a0baf6a777141d7110e8a111 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 25 Jul 2013 19:48:32 +0300 Subject: [PATCH] RDMA/cxgb4: Fix stack info leak in c4iw_create_qp() "uresp.ma_sync_key" doesn't get set on this path so we leak 8 bytes of data. Signed-off-by: Dan Carpenter Acked-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb4/qp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 232040447e8a..a4975e1654a6 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -1657,6 +1657,8 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attrs, if (mm5) { uresp.ma_sync_key = ucontext->key; ucontext->key += PAGE_SIZE; + } else { + uresp.ma_sync_key = 0; } uresp.sq_key = ucontext->key; ucontext->key += PAGE_SIZE; -- 2.11.0