From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2D44EB64DD for ; Sun, 9 Jul 2023 11:29:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232723AbjGIL3g (ORCPT ); Sun, 9 Jul 2023 07:29:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232713AbjGIL3f (ORCPT ); Sun, 9 Jul 2023 07:29:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFB5DC0 for ; Sun, 9 Jul 2023 04:29:34 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 687C860BC9 for ; Sun, 9 Jul 2023 11:29:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 781CCC433C7; Sun, 9 Jul 2023 11:29:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1688902173; bh=SML7ZeZSwp5kkA8sla9Afe2oM7xoLvyaBJCjP+3g0YA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iRyxrG2IPBZ7LSA45X0zuxf+lK0pMReqTyDHOq4tZplCD0deCbw/dEbO+0ygsNdHc /uE74qkTS4aMZVlE4Nat+groTz/YARThgnAtwKSkZmyiM5Q8eGzKcCG9im61Hq5zso XFSLfMPc8KS0MvPBShmTMc8X7zLE+MLhieev6jhs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bob Pearson , Jason Gunthorpe , Sasha Levin Subject: [PATCH 6.3 282/431] RDMA/rxe: Fix access checks in rxe_check_bind_mw Date: Sun, 9 Jul 2023 13:13:50 +0200 Message-ID: <20230709111457.755840591@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230709111451.101012554@linuxfoundation.org> References: <20230709111451.101012554@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bob Pearson [ Upstream commit 425e1c9018fdf25cb4531606cc92d9d01a55534f ] The subroutine rxe_check_bind_mw() in rxe_mw.c performs checks on the mw access flags before they are set so they always succeed. This patch instead checks the access flags passed in the send wqe. Fixes: 32a577b4c3a9 ("RDMA/rxe: Add support for bind MW work requests") Link: https://lore.kernel.org/r/20230530221334.89432-4-rpearsonhpe@gmail.com Signed-off-by: Bob Pearson Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/sw/rxe/rxe_mw.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_mw.c b/drivers/infiniband/sw/rxe/rxe_mw.c index afa5ce1a71166..a7ec57ab8fadd 100644 --- a/drivers/infiniband/sw/rxe/rxe_mw.c +++ b/drivers/infiniband/sw/rxe/rxe_mw.c @@ -48,7 +48,7 @@ int rxe_dealloc_mw(struct ib_mw *ibmw) } static int rxe_check_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe, - struct rxe_mw *mw, struct rxe_mr *mr) + struct rxe_mw *mw, struct rxe_mr *mr, int access) { if (mw->ibmw.type == IB_MW_TYPE_1) { if (unlikely(mw->state != RXE_MW_STATE_VALID)) { @@ -58,7 +58,7 @@ static int rxe_check_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe, } /* o10-36.2.2 */ - if (unlikely((mw->access & IB_ZERO_BASED))) { + if (unlikely((access & IB_ZERO_BASED))) { rxe_dbg_mw(mw, "attempt to bind a zero based type 1 MW\n"); return -EINVAL; } @@ -104,7 +104,7 @@ static int rxe_check_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe, } /* C10-74 */ - if (unlikely((mw->access & + if (unlikely((access & (IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_ATOMIC)) && !(mr->access & IB_ACCESS_LOCAL_WRITE))) { rxe_dbg_mw(mw, @@ -113,7 +113,7 @@ static int rxe_check_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe, } /* C10-75 */ - if (mw->access & IB_ZERO_BASED) { + if (access & IB_ZERO_BASED) { if (unlikely(wqe->wr.wr.mw.length > mr->ibmr.length)) { rxe_dbg_mw(mw, "attempt to bind a ZB MW outside of the MR\n"); @@ -133,12 +133,12 @@ static int rxe_check_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe, } static void rxe_do_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe, - struct rxe_mw *mw, struct rxe_mr *mr) + struct rxe_mw *mw, struct rxe_mr *mr, int access) { u32 key = wqe->wr.wr.mw.rkey & 0xff; mw->rkey = (mw->rkey & ~0xff) | key; - mw->access = wqe->wr.wr.mw.access; + mw->access = access; mw->state = RXE_MW_STATE_VALID; mw->addr = wqe->wr.wr.mw.addr; mw->length = wqe->wr.wr.mw.length; @@ -169,6 +169,7 @@ int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe) struct rxe_dev *rxe = to_rdev(qp->ibqp.device); u32 mw_rkey = wqe->wr.wr.mw.mw_rkey; u32 mr_lkey = wqe->wr.wr.mw.mr_lkey; + int access = wqe->wr.wr.mw.access; mw = rxe_pool_get_index(&rxe->mw_pool, mw_rkey >> 8); if (unlikely(!mw)) { @@ -198,11 +199,11 @@ int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe) spin_lock_bh(&mw->lock); - ret = rxe_check_bind_mw(qp, wqe, mw, mr); + ret = rxe_check_bind_mw(qp, wqe, mw, mr, access); if (ret) goto err_unlock; - rxe_do_bind_mw(qp, wqe, mw, mr); + rxe_do_bind_mw(qp, wqe, mw, mr, access); err_unlock: spin_unlock_bh(&mw->lock); err_drop_mr: -- 2.39.2