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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 E52A9C4727F for ; Fri, 25 Sep 2020 10:33:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A855321D91 for ; Fri, 25 Sep 2020 10:33:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728139AbgIYKdQ (ORCPT ); Fri, 25 Sep 2020 06:33:16 -0400 Received: from mx2.suse.de ([195.135.220.15]:33060 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727151AbgIYKdQ (ORCPT ); Fri, 25 Sep 2020 06:33:16 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 4ABC7ACA1; Fri, 25 Sep 2020 10:33:15 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 0CEDB1E12E1; Fri, 25 Sep 2020 12:33:15 +0200 (CEST) Date: Fri, 25 Sep 2020 12:33:15 +0200 From: Jan Kara To: syzbot Cc: glider@google.com, jack@suse.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: KMSAN: uninit-value in udf_evict_inode Message-ID: <20200925103315.GD11772@quack2.suse.cz> References: <000000000000f6599a05b01c71ed@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000f6599a05b01c71ed@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu 24-09-20 22:18:21, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: c5a13b33 kmsan: clang-format core > git tree: https://github.com/google/kmsan.git master > console output: https://syzkaller.appspot.com/x/log.txt?x=142cf809900000 > kernel config: https://syzkaller.appspot.com/x/.config?x=20f149ad694ba4be > dashboard link: https://syzkaller.appspot.com/bug?extid=91f02b28f9bb5f5f1341 > compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) > userspace arch: i386 > > Unfortunately, I don't have any reproducer for this issue yet. > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+91f02b28f9bb5f5f1341@syzkaller.appspotmail.com > > UDF-fs: warning (device loop3): udf_load_vrs: No anchor found > UDF-fs: Scanning with blocksize 512 failed > UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) > UDF-fs: error (device loop3): udf_read_inode: (ino 1328) failed !bh > ===================================================== > BUG: KMSAN: uninit-value in udf_evict_inode+0x382/0x7d0 fs/udf/inode.c:150 Yeah, easy enough. I'll send a fix. Honza -- Jan Kara SUSE Labs, CR