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 X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_RED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE73BC433E0 for ; Mon, 28 Dec 2020 13:13:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BC58222AAD for ; Mon, 28 Dec 2020 13:13:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732258AbgL1NNg (ORCPT ); Mon, 28 Dec 2020 08:13:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:41456 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732234AbgL1NN0 (ORCPT ); Mon, 28 Dec 2020 08:13:26 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id B3035207C9; Mon, 28 Dec 2020 13:12:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609161166; bh=E1GYUYAbH9ykkfF4Oarmxgi3hbfAtM29mibHRjVhMaY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z8wI/xnHGX2q2fGTmq+N5sVy2AvFPdyPOqeRakrCINalrd0O5nnl7jP+yJB/8nsoI ZWF2mDo1IzZCfg62YibVVH0J3RRYwdG0kJoNH+ffXQQUdJQW0OEDuwAILvahAfPxRF 5uGRvwpbvhDHZBEB0i0orfaF8hR6EYZaqy7Jxp3c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kamal Heib , Jason Gunthorpe , Sasha Levin Subject: [PATCH 4.14 106/242] RDMA/cxgb4: Validate the number of CQEs Date: Mon, 28 Dec 2020 13:48:31 +0100 Message-Id: <20201228124909.913851885@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228124904.654293249@linuxfoundation.org> References: <20201228124904.654293249@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kamal Heib [ Upstream commit 6d8285e604e0221b67bd5db736921b7ddce37d00 ] Before create CQ, make sure that the requested number of CQEs is in the supported range. Fixes: cfdda9d76436 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC") Link: https://lore.kernel.org/r/20201108132007.67537-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/cxgb4/cq.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -906,6 +906,9 @@ struct ib_cq *c4iw_create_cq(struct ib_d rhp = to_c4iw_dev(ibdev); + if (entries < 1 || entries > ibdev->attrs.max_cqe) + return ERR_PTR(-EINVAL); + if (vector >= rhp->rdev.lldi.nciq) return ERR_PTR(-EINVAL);