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 X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0663BC433E0 for ; Tue, 26 May 2020 03:14:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6778207D8 for ; Tue, 26 May 2020 03:14:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388625AbgEZDOQ (ORCPT ); Mon, 25 May 2020 23:14:16 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:44516 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388460AbgEZDOQ (ORCPT ); Mon, 25 May 2020 23:14:16 -0400 Received: by mail-io1-f72.google.com with SMTP id a2so8827025iok.11 for ; Mon, 25 May 2020 20:14:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=joFXon7CblHokYzFCF1EV1PGkA1ca25LvjLj5Ttj9ko=; b=UWcGT/rEa4SPyMOKjQfz1/j8WEeap0sFBiM8m1RIiKkOy2U+RnsaaMEipSNzjM0DYt 5GZrPkdOmU5x/emI4CYEQqFKqbwv56pvT9eSfXqdZE/7RLv9Im+nTSjZNugpn++ZmLtU yAXNeb/v3FaycJLw/JSYoBWppiceoUeEadRWmij8AdB8/EL8iC+PHfoWfzvyz9KrPdlh 1zeLPH4P+HljB++nM38Ics/8+DhBnY1sY4P/XQbIKLrrXDJAv82M/2w2zkp2vby5oBJ2 S03AG57DMNStK1A54gIPVpr9hr2G3sGGptFKv5loPeFxEzSMvFAPou4rxv8ZgpPnrs33 QSOw== X-Gm-Message-State: AOAM5334eFYjtvy0G01Y8GuGjRD8zV2TgXAsJ9li7g7+aWCB7VihVghf W5zqC7KNbDsOEE6rCOm7qwpyHdioWVhT3eAacbwmX9r9hUD3 X-Google-Smtp-Source: ABdhPJwI+1e1Ms4/Xikha1KS0aLzHd1uhWCm7BZsOf9aftktHwQMTI8wEGZ1lZ/VavH1nlFQbsCREdu4qRzKIabuZgdJQ3i+ayMl MIME-Version: 1.0 X-Received: by 2002:a5d:9b8a:: with SMTP id r10mr15737658iom.171.1590462854441; Mon, 25 May 2020 20:14:14 -0700 (PDT) Date: Mon, 25 May 2020 20:14:14 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000077bd5f05a6847d01@google.com> Subject: INFO: trying to register non-static key in calculate_sigpending From: syzbot To: christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: d2f8825a Merge tag 'for_linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12470c26100000 kernel config: https://syzkaller.appspot.com/x/.config?x=b3368ce0cc5f5ace dashboard link: https://syzkaller.appspot.com/bug?extid=eb1b67ef4194d8f9ebff compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+eb1b67ef4194d8f9ebff@syzkaller.appspotmail.com INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 1080 Comm: syz-executor.4 Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:913 [inline] register_lock_class+0x1664/0x1760 kernel/locking/lockdep.c:1225 __lock_acquire+0x104/0x4c50 kernel/locking/lockdep.c:4234 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x5b/0x80 kernel/locking/spinlock.c:167 spin_lock_irq include/linux/spinlock.h:378 [inline] calculate_sigpending+0x42/0xa0 kernel/signal.c:196 ret_from_fork+0x8/0x30 arch/x86/entry/entry_64.S:335 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.