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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 40777C43387 for ; Mon, 31 Dec 2018 04:17:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1B7E120B1F for ; Mon, 31 Dec 2018 04:17:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727045AbeLaERF (ORCPT ); Sun, 30 Dec 2018 23:17:05 -0500 Received: from mail-io1-f70.google.com ([209.85.166.70]:39312 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726876AbeLaERE (ORCPT ); Sun, 30 Dec 2018 23:17:04 -0500 Received: by mail-io1-f70.google.com with SMTP id q23so30896937ior.6 for ; Sun, 30 Dec 2018 20:17:03 -0800 (PST) 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=6BBKfIUc5mrBwUO4fLh7U7/bWZuYpkG3RZFZzn7X3cQ=; b=DAxXFrdA/0uEl1OK8p1djGoUB5EpebMWfVDRqoiSIbuxg08h6n9dOBvmgBE0TjigxA GYcKf0zzqoYTpUXm7vYLhFjv0NiHnw818IbOCg9/QxQHKXqM66KjtJDUJM12sYYeilPN hAWh1q74XLQ1fYu8Tu6LIvlRPFqX/W+VfMloNjlbLt7PBtLOT/Dz0q9iwNQWCkfTZL88 eDWwZ3VFz8Wi79jpwjU62B7oZnJtyZcWiEFd7KNAcy7P9+4YHgRPFUeoxeZpOX548taP fJx3mYqUMp8jqjN7q/apUnMmhFQgOIB6KGvr1fQYXYcbe3Z8pV3wuDUxZE4Dbxd2XLcY cGLg== X-Gm-Message-State: AA+aEWarKxL54DJUnND0D4Hbpe27bdJ1utFGqPTPybjAFNMmFATGJolW hdw/N9IqfGZhxYeIUkFKdhM4YT0PkaGzk2Sgp6/JUCn4FYhP X-Google-Smtp-Source: ALg8bN441VE+y5Y31GpFFVxAiL66jcdUb9s8kIw1Cvctj49c2+17QZ9xgQmeYaRbQm2rdLq2uw2nyqLtUZ5LqMqgRcetv60ZJOUX MIME-Version: 1.0 X-Received: by 2002:a24:138f:: with SMTP id 137mr26702483itz.18.1546229823313; Sun, 30 Dec 2018 20:17:03 -0800 (PST) Date: Sun, 30 Dec 2018 20:17:03 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005c2068057e49afcf@google.com> Subject: WARNING in batadv_mcast_mla_update From: syzbot To: a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com 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: eed9688f8513 Merge branch 'ras-core-for-linus' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10785d57400000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa5c63e12fd85b25 dashboard link: https://syzkaller.appspot.com/bug?extid=050927a651272b145a5d 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+050927a651272b145a5d@syzkaller.appspotmail.com QAT: Invalid ioctl bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves WARNING: CPU: 0 PID: 28 at net/batman-adv/multicast.c:371 batadv_mcast_mla_tt_add net/batman-adv/multicast.c:371 [inline] WARNING: CPU: 0 PID: 28 at net/batman-adv/multicast.c:371 __batadv_mcast_mla_update net/batman-adv/multicast.c:636 [inline] WARNING: CPU: 0 PID: 28 at net/batman-adv/multicast.c:371 batadv_mcast_mla_update+0x248f/0x2da0 net/batman-adv/multicast.c:661 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 28 Comm: kworker/u4:2 Not tainted 4.20.0+ #390 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_mcast_mla_update Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 __warn.cold.8+0x20/0x45 kernel/panic.c:540 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:batadv_mcast_mla_tt_add net/batman-adv/multicast.c:371 [inline] RIP: 0010:__batadv_mcast_mla_update net/batman-adv/multicast.c:636 [inline] RIP: 0010:batadv_mcast_mla_update+0x248f/0x2da0 net/batman-adv/multicast.c:661 Code: 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df be f8 f8 ff ff 66 41 89 34 06 48 c1 ea 03 c6 04 02 f8 e9 f7 e7 ff ff e8 41 f3 bf f9 <0f> 0b e9 b8 e3 ff ff 48 8b bd 48 fc ff ff e8 1e fe 02 fa e9 99 df RSP: 0018:ffff8880a9fe7338 EFLAGS: 00010293 RAX: ffff8880a9422000 RBX: 0000000000000001 RCX: ffffffff87bf0125 RDX: 0000000000000000 RSI: ffffffff87bf1d6f RDI: 0000000000000007 RBP: ffff8880a9fe7738 R08: ffff8880a9422000 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8880a9422000 R12: ffff8880a9fe7490 R13: 0000000000000000 R14: 1ffff110153fce92 R15: ffff8880a9fe7710 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. 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