From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-il1-f200.google.com ([209.85.166.200]:38552 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726694AbgEPV1F (ORCPT ); Sat, 16 May 2020 17:27:05 -0400 Received: by mail-il1-f200.google.com with SMTP id u11so5863495ilg.5 for ; Sat, 16 May 2020 14:27:03 -0700 (PDT) MIME-Version: 1.0 Date: Sat, 16 May 2020 14:27:03 -0700 In-Reply-To: <0000000000003692760578e651dd@google.com> Message-ID: <00000000000044329005a5ca97eb@google.com> Subject: Re: KASAN: use-after-free Write in hci_sock_release From: syzbot Content-Type: text/plain; charset="UTF-8" Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: bigeasy@linutronix.de, davem@davemloft.net, dvyukov@google.com, jack@suse.cz, johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, mmarek@suse.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, torvalds@linux-foundation.org, xiyou.wangcong@gmail.com syzbot suspects this bug was fixed by commit: commit f1e67e355c2aafeddf1eac31335709236996d2fe Author: Thomas Gleixner Date: Mon Nov 18 13:28:24 2019 +0000 fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1761ce06100000 start commit: 645ff1e8 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=7308e68273924137 dashboard link: https://syzkaller.appspot.com/bug?extid=b364ed862aa07c74bc62 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=152532bb400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13f73320c00000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t For information about bisection process see: https://goo.gl/tpsmEJ#bisection