From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 B0FF6188596 for ; Mon, 23 Dec 2024 22:29:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734992945; cv=none; b=rdhsrIxy/0yZr+crQ7p/8qa/wD91kJW9GRco2CaQUEAudMABWeMWnklYvO+7GUFffjHYRkgLsIUmKT1QuKuvkVrj+JX3hwafwwLfPFaqFENUaL3EJWrI/UrvLUrsKqVNT3905lw1INk61Df+Fboh0IHxED+wVsZrwBxwApn9crA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734992945; c=relaxed/simple; bh=tbxROftgZUDZCPQS3dgHui9JtdKjojV/NV4pSLa7yLQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ePPyR2gI7YRBLFTpwvwrFm6KbjmXXn7T/6NHY44j8imlQ3J36XruSv/YWDpgUluxzz+Wo0MaYP6OdNjhMMACw+ZEjdWZkrkTpHInZx9imhPgXspzOD/FEJB3DWkF26BwYE62MxpThwtLi/OIYIkefq3+HOUiAyXAehJ4U07YpBQ= 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=209.85.166.71 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-f71.google.com with SMTP id ca18e2360f4ac-844db0decffso434769639f.0 for ; Mon, 23 Dec 2024 14:29:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734992943; x=1735597743; 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=WXFsWc3cBjQmAVXhERtP+fTViDwJmrmB4Hycvb0Vczo=; b=StwiHxou+LFBtZjVLkonNkqhRmx7eb8eHluMNhetpmIt8APMZAxj8sQL9k8vwWgdM/ KKVjr7+Ua80JoSBkX4/9c5PghGbVqsmFotbjdAvIT001cJXrCNeiCAJQ0MOWf/2qBBoF JnkI7VsLTPTkmc7ktWFQSBQztIoU3ea0BbtR4TfVd/Ft9vdNLewXv3XYJnHMQzLeRWaL bvy3mL5gzzPCctH5RyuowpXhqku7m9UVHf7GGo95vqFnLooyEAZZVvzpk/dwIb6V/c0Y 4BKWY18PJ7oWg+zhMn3vHy8fLIR9KsKGajPjKUQu5WbDtQM2fr4XlC81y62am6vSoMzI ykQg== X-Forwarded-Encrypted: i=1; AJvYcCVIRATTvY8EJcyrgxNXoPUXSsZMyUj39LMhk8SDJZGxtHILpHjsxqe2Y7DmrE7Hndqk6YRcukE8vxJOJsI=@vger.kernel.org X-Gm-Message-State: AOJu0YyUoVTgBVTbR9cRZvbMZZsVkFy8PLNLqkFvATma+JXWf8hgG4D7 Dq6BpLABRMZiMruhS7Y+d3tBnHyigw98saAnZkC8B6zeZ4idG5Da4O8UCYytxo6PvgvErPMHNXd x07Fg7BEBkKtZi7JytbNw6Lbnj+fkVO4xNYOefhu/wLtKFmIhPayp35A= X-Google-Smtp-Source: AGHT+IFr3QOdlGNNLXo40GG/X1v8nXNMTvNIdi2jExJyW6chvs4r6L+prLfUOcCLhtwD2aer2+8CRLfr3PGFBsbAKNcKCXStVZub Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3202:b0:3a7:cce2:d349 with SMTP id e9e14a558f8ab-3c3018aaef4mr96055575ab.8.1734992942934; Mon, 23 Dec 2024 14:29:02 -0800 (PST) Date: Mon, 23 Dec 2024 14:29:02 -0800 In-Reply-To: <67251e01.050a0220.529b6.0162.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6769e42e.050a0220.226966.0047.GAE@google.com> Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_unregister_user From: syzbot To: davem@davemloft.net, hdanton@sina.com, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, luiz.von.dentz@intel.com, marcel@holtmann.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit c8992cffbe7411c6da4c4416d5eecfc6b78e0fec Author: Luiz Augusto von Dentz Date: Wed Dec 1 18:55:05 2021 +0000 Bluetooth: hci_event: Use of a function table to handle Command Complete bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14d538c4580000 start commit: 30b981796b94 selftests: drv-net: test empty queue and NAPI.. git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=16d538c4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=12d538c4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6a2b862bf4a5409f dashboard link: https://syzkaller.appspot.com/bug?extid=14b6d57fb728e27ce23c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12050adf980000 Reported-by: syzbot+14b6d57fb728e27ce23c@syzkaller.appspotmail.com Fixes: c8992cffbe74 ("Bluetooth: hci_event: Use of a function table to handle Command Complete") For information about bisection process see: https://goo.gl/tpsmEJ#bisection