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 59922C43387 for ; Mon, 31 Dec 2018 04:11:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3428420815 for ; Mon, 31 Dec 2018 04:11:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727017AbeLaELG (ORCPT ); Sun, 30 Dec 2018 23:11:06 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:48489 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726096AbeLaELF (ORCPT ); Sun, 30 Dec 2018 23:11:05 -0500 Received: by mail-io1-f72.google.com with SMTP id s3so25278487iob.15 for ; Sun, 30 Dec 2018 20:11:05 -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=00J0HB6kHwqkqtUUrgwRfqdgmVsV/Gxz+mkp1Mv+CJE=; b=FfACnaFS7rUT2yq7i0gpKjmiscfnK1tlytE9YsophbXZs9lEjXX3pJR3NUroc7+D3R ObLsjt1sBmcZnpi9VwO0mUPVzmcRIgzSe+e11PluNo+phejFkk7qhR7IjaMXZ3ENbmEk VKZ50k5D/nPF871voU7LSEORRJYI9m929J6xtuicjTo3qF5dnwajvH1W1Ll17+EsskRj D5jF0csn+jKL7386XVoYjrU25a60Hj5eP+puyYY7ykjFt202g3bYHjbEJ4e5i4Uj6b4h Yj5I4CJp/qulO4cl1jMbomufJhtnedK6O6RwWGV03Y1arljkHJstnVhCOkfqYcnsr+/i rnGQ== X-Gm-Message-State: AA+aEWZ4EtDDLnoo56aOAMdHn1Hz5a2VQu+isxSYjDxZF+1X47Afj+yQ FlheD3rpzwiF9Sm+sMZPdDobPx93NcFuWvFWprmUq67hcjA7 X-Google-Smtp-Source: AFSGD/Vo+zYsw3ktgf/bUGzRrL78L1PPsgz7e06JDepBQuAmIG28jBKVfF2oB+YqxO08ePfJDyyCPWGg10xHAx5B0RYSr9+ySwYg MIME-Version: 1.0 X-Received: by 2002:a24:f986:: with SMTP id l128mr26619541ith.5.1546229464582; Sun, 30 Dec 2018 20:11:04 -0800 (PST) Date: Sun, 30 Dec 2018 20:11:04 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fa4f60057e499989@google.com> Subject: WARNING in batadv_mcast_mla_tt_retract 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=103bffaf400000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa5c63e12fd85b25 dashboard link: https://syzkaller.appspot.com/bug?extid=83f2d54ec6b7e417e13f 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+83f2d54ec6b7e417e13f@syzkaller.appspotmail.com bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves WARNING: CPU: 1 PID: 7 at net/batman-adv/multicast.c:337 batadv_mcast_mla_tt_retract+0x476/0x590 net/batman-adv/multicast.c:337 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.20.0+ #169 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_retract+0x476/0x590 net/batman-adv/multicast.c:337 Code: 00 00 ad de 4c 89 ff 49 89 47 08 e8 b4 0f 03 fa e9 b6 fe ff ff 49 8d 47 10 48 89 85 60 ff ff ff e9 05 ff ff ff e8 4a 30 c0 f9 <0f> 0b e9 3f fc ff ff e8 6e 3b 03 fa e9 44 fe ff ff 4c 89 f7 e8 81 RSP: 0018:ffff8880a9e1f260 EFLAGS: 00010293 RAX: ffff8880a9e041c0 RBX: 0000000000000001 RCX: ffffffff87bedca3 RDX: 0000000000000000 RSI: ffffffff87bee066 RDI: 0000000000000007 RBP: ffff8880a9e1f328 R08: ffff8880a9e041c0 R09: ffffed1015ce5b8f R10: 0000000000000003 R11: ffff8880ae72dc7b R12: ffff8880a9e1f490 R13: 0000000000000000 R14: ffff888055b95fc0 R15: ffff8880a9e1f710 __batadv_mcast_mla_update net/batman-adv/multicast.c:635 [inline] batadv_mcast_mla_update+0x819/0x2da0 net/batman-adv/multicast.c:661 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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