From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A36A71B4C49 for ; Fri, 30 Aug 2024 15:53:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725033185; cv=none; b=vGL4ylewDTBII6GYG0OEOlhf6o6tWNejnmu6kbixaJf+bNDv3aZBidyEG6ifdJkJlRx2rmWzpgHwPzqyQRftxTpASWxRjqm9D6NLQikB/rLt7/OcvneM8rLo1+1/1kqTtnwqrZkHISf12DiQ470HCDbi0RIbyO76bMTPf3aG91A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725033185; c=relaxed/simple; bh=RueS7JnGk0i21951pS8Z1lfcC7Kbynif6BpXcfUivBw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=asty2uGNOqG3eWVjZ2eaB37RiqrT0zlypj0k1c/TDH0N6IeBpf9WHdlONaL4OpIvuZTdsQAT/RB9yoxkI/EZJe4uimmup/L6HXFHtLzCTM95v2rMXlYVZoxmcKIG5smri7QsRwhwbDM9BuGWCFpCLJhOdC1ewh1ZxS8QPzzNvFQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f199.google.com with SMTP id e9e14a558f8ab-39d2c44422eso19008385ab.2 for ; Fri, 30 Aug 2024 08:53:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725033182; x=1725637982; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=rJXna8UgM/TDpAaQDndMkHe5nsCGxVc7RnSON73+sAg=; b=W71htu1istjiZng8XSRjD/Rd0ioUp+8rEdr4H88Sitsg+MwOPnGMh7N6eFL2jmL/o5 G48dAMt85cgA8jltlDw3F8OVJ2KcuOrXiYJxYNIc//nT/ZHMpe8g3FOW8s12/9WnT4vz JzNwzSk5vCyMRXd1+jcfoiFT6wN0Y/LUdZtd3RBKL/oPzDv5uzZSgXzHOANlFr6U+NUI PpWCPWrrrTkMAueFs1Ee6rSHd6TsrDueHPjUkM9dSGvEOV/UTiXQY4qqC6kPb/+eRwDm hwsz1dwzMV7Vnb0HmLpP+CorIPMt0KJtiewQE8XDL+TEVRuRdYo2LagzVG3aw8Ji1GBa /Uqg== X-Forwarded-Encrypted: i=1; AJvYcCU2yA26dFH+Qjuh4ASK4GQ2xSDl7DLKgEY9K2MdHwTk2RLsP/gL4rPshaezsdStU3RwKGkvo30A73I=@vger.kernel.org X-Gm-Message-State: AOJu0YyEpYP5AKssX/2c2yEUkj3MfoV9v/AHdwgjC2TbEr2AW65foENP RdDBhvd4khnz64NyR6N1WIVk5o2cnFu6+Py3TMTXiJQqRu4S+RFGpOa7U+3T+vY1Zn7SbTnP/vF 8/c/dpW33pDiN6T6W6Irxu7LqjoiBYCtw4UdmSxjcfqjk31W27l9MAaM= X-Google-Smtp-Source: AGHT+IGPpVlc3Cxm6Tux+LHq6e+MRTFLxLn/5DXrJAeoqCb32DWphMPOMPxIk8n+X7k27SklSmmZR3EaWfZ2PeBC8hU238on18Dk Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1986:b0:398:b1d3:7c9d with SMTP id e9e14a558f8ab-39f4108d9c3mr786575ab.3.1725033181727; Fri, 30 Aug 2024 08:53:01 -0700 (PDT) Date: Fri, 30 Aug 2024 08:53:01 -0700 In-Reply-To: <00000000000040b643061ca951fe@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000005da6a0620e8961e@google.com> Subject: Re: [syzbot] [usb?] possible deadlock in assign_fw From: syzbot To: akinobu.mita@gmail.com, akpm@linux-foundation.org, alinde@google.com, dakr@redhat.com, glider@google.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mcgrof@kernel.org, rafael@kernel.org, russ.weight@linux.dev, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 4d0e9df5e43dba52d38b251e3b909df8fa1110be Author: Albert van der Linde Date: Fri Oct 16 03:13:50 2020 +0000 lib, uaccess: add failure injection to usercopy functions bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=132abd2b980000 start commit: d5d547aa7b51 Merge tag 'random-6.11-rc6-for-linus' of git:.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=10aabd2b980000 console output: https://syzkaller.appspot.com/x/log.txt?x=172abd2b980000 kernel config: https://syzkaller.appspot.com/x/.config?x=d76559f775f44ba6 dashboard link: https://syzkaller.appspot.com/bug?extid=e70e4c6f6eee43357ba7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ee2b7b980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=177c7b7b980000 Reported-by: syzbot+e70e4c6f6eee43357ba7@syzkaller.appspotmail.com Fixes: 4d0e9df5e43d ("lib, uaccess: add failure injection to usercopy functions") For information about bisection process see: https://goo.gl/tpsmEJ#bisection