From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1133089-1521804669-2-614733358421131606 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521804669; b=QqpJb0yVrDea7WvzBFbQlT+pwD8mLUiu0+aOwa67ECPVOcQ ylFGcElrgMRMtlejEkhvoEE7XoxuSu9PBxjgXYR0ZasD/8ysXsAH7JZo90c9Spia e2EbIHN6rtqbA1aeATFEnF1tWXwU4CATGPdz8IoTiJXgC25N3EX52cODo+qqeM+A nWWN7s/6hA1HM/zwbQG1I/K18KdtjcpoaPm8mwo6NDtlfrZT1SqnUxZbI0xxVlDV S4NsY/IMmW3qss4QDHmh6fWbb3RU1CwjOXBeFMDjRAC9UGWLXhS//GEm5fPzmIgX o6hOiLADujQox5b8PB8WunXaE1CrQLy/FKjZ8Ig== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1521804669; bh=vPN1bU7vcgyeOkjNVj+AMgpheC LdUI8aac4I2qJlyJc=; b=wKHoucF6WNG/X8uH7CpaFC92U1XB2DywNfDDq/AfsK ksboE6wj1+CHyH1moIHeApxSkAYCeWKPYL+TLv8aV7uP9GN7Z2eYPlRMtX21rcww jBo2v6cwDDERzjVjL2BuZc2RKDWxf3dsqnJerQTNzeSIW/yV56FCGC9h2zlCemI8 FIIt8eKTtmSD0tiSJ8v+Hfw7ruDTmhij+PYGOSt5BSwV37yJD5ILjj5/2BSz/Vt1 Zgf2nsq0oNLUe+lvWZe2TFMujDppU0Vs0FuDmK5+NL5Ye0/RaPTHlWxw0bXPcIkG YkOGn2Bsg55h8Cx+9wZ5E3DHyoCtNxLTpf8JADTo/5HQ== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755183AbeCWKGM (ORCPT ); Fri, 23 Mar 2018 06:06:12 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:40694 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755146AbeCWKGL (ORCPT ); Fri, 23 Mar 2018 06:06:11 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Maor Gottlieb , Leon Romanovsky , Doug Ledford , Sasha Levin Subject: [PATCH 4.9 050/177] IB/mlx5: Change vma from shared to private Date: Fri, 23 Mar 2018 10:52:58 +0100 Message-Id: <20180323094207.532965515@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323094205.090519271@linuxfoundation.org> References: <20180323094205.090519271@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Maor Gottlieb [ Upstream commit 1377661298d2820d675553d186c31b6f46c140d0 ] Anonymous VMA (->vm_ops == NULL) cannot be shared, otherwise it would lead to SIGBUS. Remove the shared flags from the vma after we change it to be anonymous. This is easily reproduced by doing modprobe -r while running a user-space application such as raw_ethernet_bw. Fixes: 7c2344c3bbf97 ('IB/mlx5: Implements disassociate_ucontext API') Signed-off-by: Maor Gottlieb Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/mlx5/main.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1323,6 +1323,7 @@ static void mlx5_ib_disassociate_ucontex /* context going to be destroyed, should * not access ops any more. */ + vma->vm_flags &= ~(VM_SHARED | VM_MAYSHARE); vma->vm_ops = NULL; list_del(&vma_private->list); kfree(vma_private);