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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 EAF2AC3B1B1 for ; Fri, 14 Feb 2020 17:57:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B956B20873 for ; Fri, 14 Feb 2020 17:57:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581703068; bh=4Wa/QB+IckNJ0b9xJIugVaiu2lf8uvi1J/olPIqS1SE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XpBMjBJPMcGP1XDtZYMp8pDpkRXx7anHrWELTKoibBofppMTOH+o/2Z4Fn8YwifWu cC5BL1wtP4BogOJKNC2u+c3grSsbcCw2SQ6JblidNki/GKG7NFXrzY6Iu5SrYhQ0dx dDhRVT+VTbR1IKCfoF974dfPPtuRLpkk7YO5ojf8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388374AbgBNR5p (ORCPT ); Fri, 14 Feb 2020 12:57:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:40126 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388193AbgBNP5V (ORCPT ); Fri, 14 Feb 2020 10:57:21 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DEEF524654; Fri, 14 Feb 2020 15:57:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581695840; bh=4Wa/QB+IckNJ0b9xJIugVaiu2lf8uvi1J/olPIqS1SE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XWn95NDHP4a33SIHib/6sFQ0VfLN1FUAHl9a7pRz1tVxz6v7eDAXLSZQM9NqyqIC/ 1ya4uZnMpf3uByLWAsOUzlSGEGZwOJjq2sn36EfbqtNC3G3pfFxRA244SVdRs8YJjf n8cPMSNQGuGjlMwgApyWoTSHVfpCCstjZ7bPldyY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Michael Guralnik , Yishai Hadas , Jason Gunthorpe , Sasha Levin , linux-rdma@vger.kernel.org Subject: [PATCH AUTOSEL 5.5 391/542] RDMA/uverbs: Verify MR access flags Date: Fri, 14 Feb 2020 10:46:23 -0500 Message-Id: <20200214154854.6746-391-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214154854.6746-1-sashal@kernel.org> References: <20200214154854.6746-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Michael Guralnik [ Upstream commit ca95c1411198c2d87217c19d44571052cdc94725 ] 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: Sasha Levin --- include/rdma/ib_verbs.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index cb02d36d41d22..a14f837fb1c84 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -4303,6 +4303,9 @@ static inline int ib_check_mr_access(int flags) !(flags & IB_ACCESS_LOCAL_WRITE)) return -EINVAL; + if (flags & ~IB_ACCESS_SUPPORTED) + return -EINVAL; + return 0; } -- 2.20.1