From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57041C4332F for ; Sat, 23 Oct 2021 13:47:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 356EB60E05 for ; Sat, 23 Oct 2021 13:47:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231452AbhJWNtd (ORCPT ); Sat, 23 Oct 2021 09:49:33 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:38490 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231290AbhJWNtb (ORCPT ); Sat, 23 Oct 2021 09:49:31 -0400 Received: by mail-io1-f70.google.com with SMTP id m7-20020a6b7b47000000b005dc506c5e04so5351681iop.5 for ; Sat, 23 Oct 2021 06:47:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to:cc; bh=6th7FRqhRNbP1CsZO8PDsX9c9NXk641vpSEu8kddIEc=; b=4nL0890t1CtQn37DSKOUnY45uCSbbsFlRjCl3Ccb3ztaqX+JQRYm91Hnf11nz2LpcS 6WfxTq2awdlYQUOJN9WWMhSnWof1LxjIX+dbHG3FwRGE0V06RThriygbbsAknd4gwH9P m+nIzaRUvfSMkYxj9wYMEGUihhUnujtjAxKBdtOObkSqG+X2vHIALZa9xCP/oNam2Uvj 51q/Ra0i6dAMVTHCWBQiKRIiMFXlKzpXnDkP5M0XSdZH2vkbIOKaEwbQtCeTfYxrFr/D W7avs2CXU1Tg7dJH3TcdD5fowgaVtcZcqwFG+GfxNZZq0GRaHmQVfedMi61+Iy6leUBX ajYw== X-Gm-Message-State: AOAM530g3ndKu22YkpfWCzp41SHe/sajNazSfmbsbb5L1/QMjrSBAR3t rmFTzVMqWfM3P3NnMBS+w9SI/m4dvVhWQrQMRI++4WzXyAWc X-Google-Smtp-Source: ABdhPJwAolsosnFjYFye6ykTTlSg+G8dCRpSMML37WZ0RiyiCqDL7LK8qN5nC7KJw8ivcRihrhIAZ3bdcRjrkSsGiMhMDK+WW64x MIME-Version: 1.0 X-Received: by 2002:a05:6e02:de2:: with SMTP id m2mr3623066ilj.134.1634996832673; Sat, 23 Oct 2021 06:47:12 -0700 (PDT) Date: Sat, 23 Oct 2021 06:47:12 -0700 In-Reply-To: <4202176.J8ZBFPDcmx@localhost.localdomain> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006baa3205cf055dd1@google.com> Subject: Re: [syzbot] INFO: trying to register non-static key in hci_uart_tty_receive (3) From: syzbot To: "Fabio M. De Francesco" Cc: fmdefrancesco@gmail.com, johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Saturday, October 23, 2021 1:54:24 AM CEST syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: 519d81956ee2 Linux 5.15-rc6 >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=16787178b00000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=1f7f46d98a0da80e >> dashboard link: https://syzkaller.appspot.com/bug? > extid=f2725165900304ec97b6 >> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils > for Debian) 2.35.2 >> >> Unfortunately, I don't have any reproducer for this issue yet. >> >> IMPORTANT: if you fix the issue, please add the following tag to the > commit: >> Reported-by: syzbot+f2725165900304ec97b6@syzkaller.appspotmail.com >> >> INFO: trying to register non-static key. >> The code is fine but needs lockdep annotation, or maybe >> you didn't initialize this object before use? >> turning off the locking correctness validator. > > Let's try the solution attached. > > Fabio > > #syz test This crash does not have a reproducer. I cannot test it. > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master