From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 A9D551A3027 for ; Mon, 2 Sep 2024 15:28:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725290884; cv=none; b=bTVul8tDFnQM5K7QDX4rOyatONyVRxuhRVBlkYjSviggnQyIVybhu9+3C7J8WIfv51QLRVT+r5S1w5bc9yv+50JPLPDxr5EoKdrdgghi6jpZ+lyEUXbQmY3tXKvrYCAir803yKAl1wvT2UoCDiMvhqZgDJAzxLSd5Gtv1y/0Eek= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-82a21f28d87so429032239f.3 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=BTF/lEVdMgqNuiC77JgxV7i3CwySnOOWgt/VH1GZGypr9nw8ZjDUapTucZCS7oe0uj 3+vJ5oQop317sGqJ3v33gceWiXNshQo3vM6aFbdy0Pb67pOu1sk4MG6ro6aYjtGrFAtg RjgG7EOoX/11K0JhD/LLH1fs9vH/jq48z2Jb4u0ij3UKin6ZNSO9HsvJ4mbdw9N3yAG6 28RJ8zFS5hM6hrKVFG2rc/fdtkH/4i2DYxhb5m3EE6IRs0SAFjGKs4LqniKlqgLhkFP/ lQjQQDPihBwi3CCdxIf5e5ee/maCvSAgBC1G4PLI6IefB96qosUXmCyt7JUUUZhokAch DXYg== X-Forwarded-Encrypted: i=1; AJvYcCV+KE8jQrfZA+4NfP80NbVOR8LtutD85EP3JjQhhFiS2A38QG9/LhxglJpWvE3RVdF5DkEuzlc=@vger.kernel.org X-Gm-Message-State: AOJu0YwFPgg3ZQe7hfG244Oe/kZ7+7VYcgJ8hay5ZT4F5kJtPP0TPZaF YoJaEn3x7PIiPODtmBVFJvZ3tXghZJG78GQ+b+daFTkQUDORAbA8qRmF4CbfmiJtga+nBTywuJU K4lTWI0dDEet2+Fb6Q0Lx1Q+sz1eeUAKLlc/CBNZ+7kshBXUS9xH09sI= X-Google-Smtp-Source: AGHT+IGYE7aRkq1QdG5CqeZumrhss9UwB66VHx1USISJdAEcgiBS8pGvcFiBithIiWwzkPxwiT2pBaJMBi9K1YaRPMlswNp5FSto Precedence: bulk X-Mailing-List: netdev@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