From owner-svn-src-all@freebsd.org Thu Aug 2 08:18:12 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DF982105D5C0; Thu, 2 Aug 2018 08:18:12 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 951AF7A426; Thu, 2 Aug 2018 08:18:12 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7643070F2; Thu, 2 Aug 2018 08:18:12 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w728IC1U039680; Thu, 2 Aug 2018 08:18:12 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w728ICrT039679; Thu, 2 Aug 2018 08:18:12 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201808020818.w728ICrT039679@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Thu, 2 Aug 2018 08:18:12 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r337080 - stable/11/sys/ofed/drivers/infiniband/core X-SVN-Group: stable-11 X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: stable/11/sys/ofed/drivers/infiniband/core X-SVN-Commit-Revision: 337080 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Aug 2018 08:18:13 -0000 Author: hselasky Date: Thu Aug 2 08:18:11 2018 New Revision: 337080 URL: https://svnweb.freebsd.org/changeset/base/337080 Log: MFC r336374: Avoid that ib_drain_qp() triggers an out-of-bounds stack access in ibcore. Linux commit: a1ae7d0345edd593d6725d3218434d903a0af95d Sponsored by: Mellanox Technologies Modified: stable/11/sys/ofed/drivers/infiniband/core/ib_verbs.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/ofed/drivers/infiniband/core/ib_verbs.c ============================================================================== --- stable/11/sys/ofed/drivers/infiniband/core/ib_verbs.c Thu Aug 2 08:17:09 2018 (r337079) +++ stable/11/sys/ofed/drivers/infiniband/core/ib_verbs.c Thu Aug 2 08:18:11 2018 (r337080) @@ -1940,7 +1940,13 @@ static void __ib_drain_sq(struct ib_qp *qp) { struct ib_qp_attr attr = { .qp_state = IB_QPS_ERR }; struct ib_drain_cqe sdrain; - struct ib_send_wr swr = {}, *bad_swr; + struct ib_send_wr *bad_swr; + struct ib_rdma_wr swr = { + .wr = { + .opcode = IB_WR_RDMA_WRITE, + .wr_cqe = &sdrain.cqe, + }, + }; int ret; if (qp->send_cq->poll_ctx == IB_POLL_DIRECT) { @@ -1949,7 +1955,6 @@ static void __ib_drain_sq(struct ib_qp *qp) return; } - swr.wr_cqe = &sdrain.cqe; sdrain.cqe.done = ib_drain_qp_done; init_completion(&sdrain.done); @@ -1959,7 +1964,7 @@ static void __ib_drain_sq(struct ib_qp *qp) return; } - ret = ib_post_send(qp, &swr, &bad_swr); + ret = ib_post_send(qp, &swr.wr, &bad_swr); if (ret) { WARN_ONCE(ret, "failed to drain send queue: %d\n", ret); return;