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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 D415BC43A1D for ; Thu, 12 Jul 2018 14:56:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9ADFA213A2 for ; Thu, 12 Jul 2018 14:56:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9ADFA213A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732588AbeGLPGg (ORCPT ); Thu, 12 Jul 2018 11:06:36 -0400 Received: from mga11.intel.com ([192.55.52.93]:52770 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732507AbeGLPGf (ORCPT ); Thu, 12 Jul 2018 11:06:35 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Jul 2018 07:56:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,343,1526367600"; d="scan'208";a="57147299" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga006.jf.intel.com with ESMTP; 12 Jul 2018 07:56:22 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id A3A8D18D; Thu, 12 Jul 2018 17:56:27 +0300 (EEST) From: "Kirill A. Shutemov" To: Andrew Morton Cc: Dmitry Vyukov , Oleg Nesterov , Andrea Arcangeli , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv2 0/2] Fix crash due to vma_is_anonymous() false-positives Date: Thu, 12 Jul 2018 17:56:24 +0300 Message-Id: <20180712145626.41665-1-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.18.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix crash found by syzkaller. The fix allows to remove ->vm_ops checks. v2: - Catch few more cases where we need to initialize ->vm_ops: + nommu; + ia64; - Make sure that we initialize ->vm_ops even if ->mmap failed. We need ->vm_ops in error path too. Kirill A. Shutemov (2): mm: Fix vma_is_anonymous() false-positives mm: Drop unneeded ->vm_ops checks arch/ia64/kernel/perfmon.c | 1 + arch/ia64/mm/init.c | 2 ++ drivers/char/mem.c | 1 + fs/binfmt_elf.c | 2 +- fs/exec.c | 1 + fs/hugetlbfs/inode.c | 1 + fs/kernfs/file.c | 20 +------------------- fs/proc/task_mmu.c | 2 +- include/linux/mm.h | 5 ++++- kernel/events/core.c | 2 +- kernel/fork.c | 2 +- mm/gup.c | 2 +- mm/hugetlb.c | 2 +- mm/khugepaged.c | 4 ++-- mm/memory.c | 12 ++++++------ mm/mempolicy.c | 10 +++++----- mm/mmap.c | 25 ++++++++++++++++++------- mm/mremap.c | 2 +- mm/nommu.c | 13 ++++++++++--- mm/shmem.c | 1 + mm/util.c | 12 ++++++++++++ 21 files changed, 72 insertions(+), 50 deletions(-) -- 2.18.0