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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC4A6C00140 for ; Mon, 8 Aug 2022 13:21:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243268AbiHHNV1 (ORCPT ); Mon, 8 Aug 2022 09:21:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242399AbiHHNV0 (ORCPT ); Mon, 8 Aug 2022 09:21:26 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8FC02BFB for ; Mon, 8 Aug 2022 06:21:24 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id j5-20020a056e02218500b002de1cf2347bso6442878ila.2 for ; Mon, 08 Aug 2022 06:21:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc; bh=2fuXKFyY2jLEHj97y3vzUngcZESDHWQml2x/X1IOlDQ=; b=7fuP6G63gnV1wx2kbOGNDJGfTxEgutjtmaus4e826xmS5NOBFdWFXNXbmhgGflyZVP R4nJ3mjLP4gdto4pcH+XCQgfWC7tfbKhQpX+jnOhjsucm3ozGpg2cEKnwhYJdcgV88VK cAfxl2dAD3YTZ0VO4f1jcVugGYtC1RxRMvsZP3Nau1DFtXmqqz93xlNlTaG9pmiubIEs jKQ0iqGvYur/R+5npD9opRRwLRdvTVq0FDz1zXAJ2/Zst4jzwuh1NarBN0QZPPxz8/rf FiQPBZ43qobNTOerwwaC9+MSGBwUdfxr5aD4SQJbQG4yxmmywdZVfeAUJZs3wbSfh9E3 ki/A== X-Gm-Message-State: ACgBeo1LLVG4nBfPRAoEp6UGoVMSRCIoF9oVyFKasUFDucQOor6nkE1+ SlkVwoUioPmdbvslm7TayJYj+nfnPejxI/BIjlwduyYMSFHC X-Google-Smtp-Source: AA6agR5xmHh9m5tQn7ICict6btzfu4Ake0f9T6RziJyStPtETo7Y+FSAOqdrFXe1lFwFUAf7y3oRbCdNwaMLmL7b5B0CCndIW9Oq MIME-Version: 1.0 X-Received: by 2002:a05:6638:22c9:b0:341:56cf:c447 with SMTP id j9-20020a05663822c900b0034156cfc447mr7741358jat.244.1659964884208; Mon, 08 Aug 2022 06:21:24 -0700 (PDT) Date: Mon, 08 Aug 2022 06:21:24 -0700 In-Reply-To: <0000000000008be58e05e5b5d971@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000434f7a05e5bab1ce@google.com> Subject: Re: [syzbot] INFO: trying to register non-static key in gsmld_write From: syzbot To: gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: ca688bff68bc Add linux-next specific files for 20220808 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=16c4c201080000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c20e006003cdecb dashboard link: https://syzkaller.appspot.com/bug?extid=cf155def4e717db68a12 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=151f2b46080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=143a3171080000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cf155def4e717db68a12@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. CPU: 0 PID: 3608 Comm: syz-executor156 Not tainted 5.19.0-next-20220808-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 assign_lock_key kernel/locking/lockdep.c:979 [inline] register_lock_class+0xf1b/0x1120 kernel/locking/lockdep.c:1292 __lock_acquire+0x109/0x56d0 kernel/locking/lockdep.c:4932 lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 gsmld_write+0x5e/0x140 drivers/tty/n_gsm.c:3023 do_tty_write drivers/tty/tty_io.c:1024 [inline] file_tty_write.constprop.0+0x499/0x8f0 drivers/tty/tty_io.c:1095 call_write_iter include/linux/fs.h:2192 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9e9/0xdd0 fs/read_write.c:578 ksys_write+0x127/0x250 fs/read_write.c:631 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f80104e30c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8010474268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f801056b4d0 RCX: 00007f80104e30c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f8010539010 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8010474280 R13: 6d74702f7665642f R14: 00007f801047427c R15: 00007f801056b4d8