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=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 3699CC433DF for ; Sun, 28 Jun 2020 06:11:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0719020702 for ; Sun, 28 Jun 2020 06:11:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593324669; bh=Obir8NWpVyRdOF2tK7j8Pz3Unoae8GMKId/DtUm05yg=; h=From:To:Cc:Subject:Date:List-ID:From; b=m9HSTe2v6J2XVskGi27/To1PfQ3O6XsfcLVA5Zx30LukFffy6L0p5fQi+jaT/QrUN JE8AcsBHPQflOCVuZOP4MIUHwyEUz48vfO7GBZlgBJlOevCGphXBV/cDn7vvvaPGKw ekOo2d6jP+f5KT01XsBeFzjcHzsizHRSWZMrAgtw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725970AbgF1GKe (ORCPT ); Sun, 28 Jun 2020 02:10:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:41960 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725913AbgF1GKe (ORCPT ); Sun, 28 Jun 2020 02:10:34 -0400 Received: from sol.hsd1.ca.comcast.net (c-107-3-166-239.hsd1.ca.comcast.net [107.3.166.239]) (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 205F220702; Sun, 28 Jun 2020 06:10:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593324634; bh=Obir8NWpVyRdOF2tK7j8Pz3Unoae8GMKId/DtUm05yg=; h=From:To:Cc:Subject:Date:From; b=yN31eNYNzzLXSVQ1AuUz0ZUY1jN4jmlCZRGBtVP+t9qaHgQH53VNhIsp6QcgvUIVQ 8eMD2+2mJ0DkJ/WPQDHbawydb81lHKUy5OyDdGCb+OZgklHmObvuIwjaat2re4tYyp fgYQBBHPhbEfibW+RKScSVHvjrDkFwSgwR8YlpY8= From: Eric Biggers To: linux-fsdevel@vger.kernel.org, Alexander Viro , Andrew Morton Cc: linux-kernel@vger.kernel.org, Qiujun Huang Subject: [PATCH 0/6] fs/minix: fix syzbot bugs and set s_maxbytes Date: Sat, 27 Jun 2020 23:08:39 -0700 Message-Id: <20200628060846.682158-1-ebiggers@kernel.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org List-Archive: This series fixes all syzbot bugs in the minix filesystem: KASAN: null-ptr-deref Write in get_block KASAN: use-after-free Write in get_block KASAN: use-after-free Read in get_block WARNING in inc_nlink KMSAN: uninit-value in get_block WARNING in drop_nlink It also fixes the minix filesystem to set s_maxbytes correctly, so that userspace sees the correct behavior when exceeding the max file size. Al or Andrew: one of you will need to take these patches, since no one is maintaining this filesystem. Eric Biggers (6): fs/minix: check return value of sb_getblk() fs/minix: don't allow getting deleted inodes fs/minix: reject too-large maximum file size fs/minix: set s_maxbytes correctly fs/minix: fix block limit check for V1 filesystems fs/minix: remove expected error message in block_to_path() fs/minix/inode.c | 42 +++++++++++++++++++++++++++++++++++++---- fs/minix/itree_common.c | 8 +++++++- fs/minix/itree_v1.c | 12 ++++++------ fs/minix/itree_v2.c | 13 ++++++------- fs/minix/minix.h | 1 - 5 files changed, 57 insertions(+), 19 deletions(-) -- 2.27.0