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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 A65E3C433DF for ; Tue, 11 Aug 2020 12:47:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 85857206C3 for ; Tue, 11 Aug 2020 12:47:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728649AbgHKMrU (ORCPT ); Tue, 11 Aug 2020 08:47:20 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:39149 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728081AbgHKMrT (ORCPT ); Tue, 11 Aug 2020 08:47:19 -0400 Received: by mail-io1-f71.google.com with SMTP id v10so9610931iot.6 for ; Tue, 11 Aug 2020 05:47:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=5vEcG9zeyOZ/QenNgo3ls9OBA79q1Txnz2k4N411U8A=; b=AbZPH3gbesIZpJmiCBM3ZYhx2F8mfHx95MzJgdWIjI7yInnAyrgGNnp8L5GmJrUI0m Dg7BafdQRnzBAE7i4hGdKS3ygHVoC1M/5d/4uZ0MQa6aQ8fQ1Pb2yeAQkuk+xq41q3Rz JRLxVxMAYxXuTqi6xnMoSOKZRqHTJEte9O2AysT6C5cOG5BybSr4KijCQB+VymFJ7ic+ J2t0AYV/RXmxaS3sL1SYhF1GjhxpKHlSG+xmQiSDghvz2YzQ99LbdHcUktep+sV6W9BH Ns3mAEW7qBLUIksE/enT6rXBZQtVfGUDVv5/3zlnyTqzUxsSfamoIjyVsylUa0KltncB mMLQ== X-Gm-Message-State: AOAM533NU1AKM9uFteuDFmaXZh0tk1jeo7SQhIQukKw8WxvsNDztL8fX rNfaD7vcUwGoIM84Fq7zzNo6njxBKQ0yvPof6fExCM++mhX1 X-Google-Smtp-Source: ABdhPJyMYMdwxugH7bEJWBFsjpR4rXUiRcwyxJrAMZIHRaY7op4hzQUlF4TYM2Vi7KTM1VfoFtiM7FhO375FdGbUc72BhsIIr7iw MIME-Version: 1.0 X-Received: by 2002:a6b:b513:: with SMTP id e19mr22259220iof.167.1597150039477; Tue, 11 Aug 2020 05:47:19 -0700 (PDT) Date: Tue, 11 Aug 2020 05:47:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c1925305ac997812@google.com> Subject: KASAN: use-after-free Read in corrupted (4) From: syzbot To: linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, will@kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: d6efb3ac Merge tag 'tty-5.9-rc1' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=172b6976900000 kernel config: https://syzkaller.appspot.com/x/.config?x=ff87594cecb7e666 dashboard link: https://syzkaller.appspot.com/bug?extid=48135e34de22e3a82c99 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1373613a900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+48135e34de22e3a82c99@syzkaller.appspotmail.com netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x41d0/0x5640 kernel/locking/lockdep.c:4296 Read of size 8 at addr ffff8880936320a0 by task syz-executor.0/6858 CPU: 1 PID: 6858 Comm: syz-executor.0 Not tainted 5.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: dump_sta --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches