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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 B3B9CC433F4 for ; Thu, 30 Aug 2018 15:31:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5E10720661 for ; Thu, 30 Aug 2018 15:31:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5E10720661 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727233AbeH3Tdp (ORCPT ); Thu, 30 Aug 2018 15:33:45 -0400 Received: from mail-io0-f199.google.com ([209.85.223.199]:57145 "EHLO mail-io0-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726235AbeH3Tdp (ORCPT ); Thu, 30 Aug 2018 15:33:45 -0400 Received: by mail-io0-f199.google.com with SMTP id o18-v6so7803890ioh.23 for ; Thu, 30 Aug 2018 08:31:02 -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=i0FvpuMhplJAgw+0N527fxM4y1fu2WwuGP7nYq7k+R8=; b=BrAEg9yWD4j40qiwSPxptHtpFHTkYPi59+plEOYI8P+ige1Qk38gioG++rs7c2IXuw UGtrkOuKux1SfTNz3r5boWqIcgqXhUOr8Yxc6ITp/ug5sHY7GayeaPK/W+WFen6fnVpE x43Bg/IfCjw4/vMl/ZtZ3rIrzKIY4Zz27zr1k736KRMR5el3xI4taXLLTkYqoj82Ux8N 1OJ6N5Bgz1WEyvKajK0CdCi0l5f6K/5JBaEqjnYzlj08/xtv6szeOxMLkVqXK7hJZNCX j2Z7wgotiXuA5UwpkLV8ZrcVV5apvZBc1M/d0Eb7uh4HCD9vwJX1Q8oTDky1/+gtVQAj nYMg== X-Gm-Message-State: APzg51AtiH41m4J6jPerc7zpqxHrDbkuyiZ0QTBN4JEgZNGARS7YAStb KW1pVQ/D6t5O89+wLk5RKa8seAf//DSlRPnIlqwL6KPjevjR X-Google-Smtp-Source: ANB0VdbofEkmqgn5dCwaOMkIvDq33SK6QGnmpvYiTQDNCvg41syl1Y8nhLZ1Pwym0JYXfj72TXmIAnnZx/YVZHvyq8xlfLqKWQLZ MIME-Version: 1.0 X-Received: by 2002:a24:7d03:: with SMTP id b3-v6mr1402390itc.52.1535643062308; Thu, 30 Aug 2018 08:31:02 -0700 (PDT) Date: Thu, 30 Aug 2018 08:31:02 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003b1c360574a8c31e@google.com> Subject: WARNING in handle_irq (3) From: syzbot To: gregkh@linuxfoundation.org, hpa@zytor.com, kstewart@linuxfoundation.org, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, nstange@suse.de, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes 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: 58c3f14f86c9 Merge tag 'riscv-for-linus-4.19-rc2' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10be176a400000 kernel config: https://syzkaller.appspot.com/x/.config?x=531a917630d2a492 dashboard link: https://syzkaller.appspot.com/bug?extid=a58b558e3e62d0604e5c compiler: gcc (GCC) 8.0.1 20180413 (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+a58b558e3e62d0604e5c@syzkaller.appspotmail.com TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. ------------[ cut here ]------------ do_IRQ(): syz-executor5 has overflown the kernel stack (cur:ffff88018aec0000,sp:ffff88018aeb0e18,irq stk top-bottom:ffff8801db000080-ffff8801db008000,exception stk top-bottom:fffffe0000007080-fffffe0000011000,ip:lock_is_held_type+0x18b/0x210) WARNING: CPU: 0 PID: 13805 at arch/x86/kernel/irq_64.c:64 stack_overflow_check arch/x86/kernel/irq_64.c:61 [inline] WARNING: CPU: 0 PID: 13805 at arch/x86/kernel/irq_64.c:64 handle_irq+0x1fb/0x2e7 arch/x86/kernel/irq_64.c:73 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 13805 Comm: syz-executor5 Not tainted 4.19.0-rc1+ #215 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+0x1c9/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993 RIP: 0010:stack_overflow_check arch/x86/kernel/irq_64.c:61 [inline] RIP: 0010:handle_irq+0x1fb/0x2e7 arch/x86/kernel/irq_64.c:73 Code: 00 00 ff b6 80 00 00 00 48 c7 c7 80 ca 24 87 41 54 41 55 65 48 8b 04 25 40 ee 01 00 48 05 68 06 00 00 48 89 c6 e8 95 c4 1c 00 <0f> 0b 48 83 c4 18 e9 3f ff ff ff 48 89 75 e0 e8 c1 fe 90 00 48 8b RSP: 0018:ffff8801db007f58 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff8801cee0ad80 RCX: 0000000000000000 RDX: 0000000000010000 RSI: ffffffff8163ac01 RDI: 0000000000000001 RBP: ffff8801db007fb0 R08: ffff8801c9b4a700 R09: ffffed003b603eca R10: ffffed003b603eca R11: ffff8801db01f657 R12: fffffe0000011000 R13: fffffe0000007080 R14: 000000000000002a R15: 0000000000000000 do_IRQ+0x80/0x1a0 arch/x86/kernel/irq.c:246 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:643 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. 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