From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 B4F051AB6D8 for ; Mon, 2 Sep 2024 15:28:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725290884; cv=none; b=AxQeYunShs1rxyMarWmlAT7SqBmsc2Rq37VbKgkM+MR+VxlJVI28/Xt3di6aZdPF1noysuTbV8mlN9LTdQcZGE2HH5DCqv4zuJG9JDRb2M3SDpTQS8RVQriqI6NLye34dfV6whO93SH4iwIarikQXB8ngqvNI+xrcrCNpkFGg+U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725290884; c=relaxed/simple; bh=fcsvwgJHszrqFYBuVGMJyWBjEoNkn9u8s/Qvo7dREkE=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=OOQxW2JB1WuGe6yJw+rYIKmGN2x2mpkaFiiY77bqSaOfKw3F+JiMv1eYTnCYMKkwDnleFwNCOmcaG2z1PizuciHtecdPy3t5MkHfEH/AscBQZF1J6Q6UvxpA/2X3myn4s2W3JlukyodQmV4/AfcLfxB8aFDF+wOiabZJphdbbaI= 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=209.85.166.69 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-io1-f69.google.com with SMTP id ca18e2360f4ac-82a3fa4ecd3so229320739f.1 for ; Mon, 02 Sep 2024 08:28:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725290882; x=1725895682; 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=DPWC6U8f2qBdEbiB/1tHLk14BDYkG8mFDHPKIKYsGpk=; b=nbp0BC42s4Wi6WTFE2WJ9Jhi1wiJ6YT/sKAGeWr1rUUVndHq42wXpO4Kgj4XMc5AbS WDTVgIebOoPO8aXOFtTNETTfUX3eZnIB/PXDbc/GJaCUxo5nuIMC/+ah+yt4CQqdc7W6 ricRNqlHXqaB5doI7ki3S0zPxN1a6XEoQfKzUahG5ckOOa/0GC/HAqVUWkGCW83IC109 dQKSPlDx2w67uZVfV0igK89UV09KE8Ffud9XWy9egsMaE76585tOduGeyPMbqChEFEkB 1GSqdNJCKHN80O/ra/Z+OcbWQmCM/JF9JvLIRVjDjlxO6OD2JWwY8SYpHOsx/73vNLAn cidw== X-Forwarded-Encrypted: i=1; AJvYcCU6wKe6/FQ5dzqlIwhMvk3XeJngKoRHwpqPPDibIDKmXs4562kN2tgTXUOWhE79QZjG8mpwC9un/aG5sN6J@vger.kernel.org X-Gm-Message-State: AOJu0Yz/FUshqXoLB4Q4At+2L38RyEkAGx2Nqc+ThuyyOxFZD5mxSCSZ OT/lvbl1BkOkJwEulTVVbSnLtKxcQ3sDJu1qpXebNbd2Dsfc17ForLgLOzXPK420OgtipydI8CN 2+dg2n7vTMXbQV8LQWsoDBX4D4/JeCEUnUZf6AAwGrgR0YLSfPCvaGCk= X-Google-Smtp-Source: AGHT+IGYE7aRkq1QdG5CqeZumrhss9UwB66VHx1USISJdAEcgiBS8pGvcFiBithIiWwzkPxwiT2pBaJMBi9K1YaRPMlswNp5FSto Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:8704:b0:4b9:e5b4:67fd with SMTP id 8926c6da1cb9f-4d017d77c32mr899228173.1.1725290881918; Mon, 02 Sep 2024 08:28:01 -0700 (PDT) Date: Mon, 02 Sep 2024 08:28:01 -0700 In-Reply-To: <00000000000087bd88062117d676@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000026b5250621249667@google.com> Subject: Re: [syzbot] [fs?] [mm?] INFO: task hung in page_cache_ra_unbounded (2) From: syzbot To: akpm@linux-foundation.org, davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linma@zju.edu.cn, linux-bluetooth@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, luiz.dentz@gmail.com, marcel@holtmann.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit e305509e678b3a4af2b3cfd410f409f7cdaabb52 Author: Lin Ma Date: Sun May 30 13:37:43 2021 +0000 Bluetooth: use correct lock to prevent UAF of hdev object bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16a579eb980000 start commit: 431c1646e1f8 Linux 6.11-rc6 git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=15a579eb980000 console output: https://syzkaller.appspot.com/x/log.txt?x=11a579eb980000 kernel config: https://syzkaller.appspot.com/x/.config?x=660f6eb11f9c7dc5 dashboard link: https://syzkaller.appspot.com/bug?extid=265e1cae90f8fa08f14d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f8f0fb980000 Reported-by: syzbot+265e1cae90f8fa08f14d@syzkaller.appspotmail.com Fixes: e305509e678b ("Bluetooth: use correct lock to prevent UAF of hdev object") For information about bisection process see: https://goo.gl/tpsmEJ#bisection