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=-8.7 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 904CAC433E3 for ; Wed, 19 Aug 2020 13:54:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F50B2075E for ; Wed, 19 Aug 2020 13:54:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728413AbgHSNy0 (ORCPT ); Wed, 19 Aug 2020 09:54:26 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:34314 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726961AbgHSNyY (ORCPT ); Wed, 19 Aug 2020 09:54:24 -0400 Received: by mail-io1-f72.google.com with SMTP id 127so14283561iou.1 for ; Wed, 19 Aug 2020 06:54:23 -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=g75jB1LnzI6JsnGC7iHQBZ+t98kGTpnK3eo3fu9wlmY=; b=YVOmpxAXn863ouKJi/bdcqxg1O7AHbsm6+A5DL3KiPDlqV5XYcpZG0Jyc0SD4ZBpoD BERP1pRuVIojLFrRr+y3tY9JXvxEdW+o5HWg7gcAnUXSFWrUOlO5LW9PiC4BLtHgZmM4 MbjpG2XQ/tQn5GPMmRFlv58opccxgKos2ytJyt0G3Ik5+EmswSmDEhnzP6Ja6y3EHOup GjLK2DD55QxYSSHRk2oMK6aIAEFPHGYqC/pNQROjLGuuTlPnb95RjLPuiih8tc4EvEvu kSMtn3zFfIDnDXxgeHDSbtG24olCnWBserOfAWufDSyssNzolNSZnyn+4cr7peRoc1ye OfCg== X-Gm-Message-State: AOAM530KlXDaWHsvFyZukzriXe+McM617jft9dTQVFqKYtFGfT6SywIp AS252/YXTmM7HhZyv2d2L8N88wc7SrDCMJM3oagnxd8xDJxG X-Google-Smtp-Source: ABdhPJziewjD7rBI2Zvr8qC/jigDeiszB4mTfIom/9e9Kt1qMt2b7ijVqBAf8f2SzLlcX3osbSTJOGW+zG3fIUzwxwZ2HfEju1eo MIME-Version: 1.0 X-Received: by 2002:a92:6d10:: with SMTP id i16mr23771169ilc.228.1597845263517; Wed, 19 Aug 2020 06:54:23 -0700 (PDT) Date: Wed, 19 Aug 2020 06:54:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000568fc005ad3b57c3@google.com> Subject: unregister_netdevice: waiting for DEV to become free (4) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com 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: 18445bf4 Merge tag 'spi-fix-v5.9-rc1' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1710d97a900000 kernel config: https://syzkaller.appspot.com/x/.config?x=bb68b9e8a8cc842f dashboard link: https://syzkaller.appspot.com/bug?extid=df400f2f24a1677cd7e0 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15859986900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1228fea1900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+df400f2f24a1677cd7e0@syzkaller.appspotmail.com unregister_netdevice: waiting for lo to become free. Usage count = 1 --- 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