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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 10FC9C3B189 for ; Thu, 13 Feb 2020 15:50:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D344420661 for ; Thu, 13 Feb 2020 15:50:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581609018; bh=QyJVGfqaru/uvrDGFsoczRg8cEkQo1LqTPd4vcYohKI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=lgm8xL4p2VupOLWHIUlTvVHNJqbsVPPsmNYhRTkbI16QBxRt3DVP3hVTFM28SKEUj 9VwKzJfcg2UdLurs7soa4bQu4JZTW5G4zfFxSN0+S+Q6CDBMlGCwjMQVk1+z60xFH4 vbtdHmsDCulKPyZEqWTDLXoMOfDmJWsqzyV2AhrE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387998AbgBMPuJ (ORCPT ); Thu, 13 Feb 2020 10:50:09 -0500 Received: from mail.kernel.org ([198.145.29.99]:45336 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387573AbgBMP03 (ORCPT ); Thu, 13 Feb 2020 10:26:29 -0500 Received: from localhost (unknown [104.132.1.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7E661206DB; Thu, 13 Feb 2020 15:26:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581607587; bh=QyJVGfqaru/uvrDGFsoczRg8cEkQo1LqTPd4vcYohKI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IaOyfw7brjr1FnJKH1+qcAWitiQ0o1cB00+00UjiY9HYrmF78gPMG2+PE7pD7dz7R KhIVqTi5SwrHn71N1kkQ2I5kM2yug9cmosSl0xVinkluX6A+mFjoUkYTzMW+9UFIrb DGJRLw05uiNjFh1+hxZ4+AnqpVvKQTshLk90xPPA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Michael Guralnik , Yishai Hadas , Jason Gunthorpe Subject: [PATCH 4.19 06/52] RDMA/uverbs: Verify MR access flags Date: Thu, 13 Feb 2020 07:20:47 -0800 Message-Id: <20200213151813.270748287@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213151810.331796857@linuxfoundation.org> References: <20200213151810.331796857@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Michael Guralnik commit ca95c1411198c2d87217c19d44571052cdc94725 upstream. Verify that MR access flags that are passed from user are all supported ones, otherwise an error is returned. Fixes: 4fca03778351 ("IB/uverbs: Move ib_access_flags and ib_read_counters_flags to uapi") Link: https://lore.kernel.org/r/1578506740-22188-6-git-send-email-yishaih@mellanox.com Signed-off-by: Michael Guralnik Signed-off-by: Yishai Hadas Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- include/rdma/ib_verbs.h | 3 +++ 1 file changed, 3 insertions(+) --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -3864,6 +3864,9 @@ static inline int ib_check_mr_access(int !(flags & IB_ACCESS_LOCAL_WRITE)) return -EINVAL; + if (flags & ~IB_ACCESS_SUPPORTED) + return -EINVAL; + return 0; }