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 autolearn=unavailable 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 7B95AC433E1 for ; Mon, 6 Jul 2020 10:48:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 604F32074D for ; Mon, 6 Jul 2020 10:48:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728998AbgGFKsU (ORCPT ); Mon, 6 Jul 2020 06:48:20 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:38602 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728441AbgGFKsU (ORCPT ); Mon, 6 Jul 2020 06:48:20 -0400 Received: by mail-io1-f71.google.com with SMTP id l13so23385464ioj.5 for ; Mon, 06 Jul 2020 03:48:19 -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=ZSkvF6FpHO5ed0FFo5QShyZ2DWco4e/MYymtN3KmtXg=; b=kziiDla0XekXFQmLkXr9q/DKP06yCWn1UYg7fwMGt5Pth2W4UXNLuehXdz/GdjclZl QR+ocvShp1WKvus35FP4tihXLYtAx2uC7/OBWQZ1Tr05YdZ1em10R9nAI1XgYyIn/xTn xt0g4m4vmzqnxCnS0pmvuuN8vVeX5izORDNKYBN8Clxc4s2bw/N5qzN5xZZ7UZQYlRwR x6WsvW6vXv5EG01FzwZEaTiXj51+BtfNjOYBiwDV+wksn3uVIBUeWhE2EyhlMGe45xEm SQ8cCtHpv7sP30YD8xrvV8ndImiHmiwtppsIvqLFroUC0dlxTM/FqqXy92JGV9lnN9WI 66HA== X-Gm-Message-State: AOAM532JSxxRAAKSn5dp+e7BRJf1veGUOTevnfuCsXeI8FGgTcEa/qi2 cK1/PWU7rfAD8H3BN+XXJdClkNgVMeAGxKjn7yaXR6mUnGim X-Google-Smtp-Source: ABdhPJx2JPkeJrBN4d8dtIgR2239fFzLl4X8Mk2EOjJMfbB9/oYjSs+R2SPYnhjp1Uy66oTAKpPu3fJ8Q3/W+lAXIB7GrGzwAEJO MIME-Version: 1.0 X-Received: by 2002:a92:2ca:: with SMTP id 193mr30378243ilc.299.1594032499112; Mon, 06 Jul 2020 03:48:19 -0700 (PDT) Date: Mon, 06 Jul 2020 03:48:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000debe1c05a9c39c93@google.com> Subject: WARNING in ipvlan_l3s_unregister From: syzbot To: davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, 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: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1744dc83100000 kernel config: https://syzkaller.appspot.com/x/.config?x=183dd243398ba7ec dashboard link: https://syzkaller.appspot.com/bug?extid=bb3d7a24f705078b1286 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) 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+bb3d7a24f705078b1286@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 17717 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_unregister_nf_hook drivers/net/ipvlan/ipvlan_l3s.c:148 [inline] WARNING: CPU: 0 PID: 17717 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_l3s_unregister+0x145/0x1d0 drivers/net/ipvlan/ipvlan_l3s.c:221 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 17717 Comm: syz-executor.3 Not tainted 5.8.0-rc3-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+0x1f0/0x31e lib/dump_stack.c:118 panic+0x264/0x7a0 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:235 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563 RIP: 0010:ipvlan_unregister_nf_hook drivers/net/ipvlan/ipvlan_l3s.c:148 [inline] RIP: 0010:ipvlan_l3s_unregister+0x145/0x1d0 drivers/net/ipvlan/ipvlan_l3s.c:221 Code: 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 92 94 dc fc 49 c7 06 00 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0b 95 9d fc <0f> 0b eb c8 e8 02 95 9d fc c6 05 79 32 92 04 01 48 c7 c7 6c c6 e9 RSP: 0018:ffffc90019d57330 EFLAGS: 00010287 RAX: ffffffff84d6e705 RBX: 1ffff11013b08b98 RCX: 0000000000040000 RDX: ffffc9000f539000 RSI: 00000000000006d7 RDI: 00000000000006d8 RBP: 0000000000000000 R08: ffffffff84d6e68e R09: fffffbfff12da576 R10: fffffbfff12da576 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88809d845cc0 R14: ffff88804bd08000 R15: ffff888055fd6100 ipvlan_set_port_mode+0x33e/0x420 drivers/net/ipvlan/ipvlan_main.c:37 ipvlan_nl_changelink+0x18a/0x340 drivers/net/ipvlan/ipvlan_main.c:435 __rtnl_newlink net/core/rtnetlink.c:3255 [inline] rtnl_newlink+0x15e3/0x1bf0 net/core/rtnetlink.c:3397 rtnetlink_rcv_msg+0x889/0xd40 net/core/rtnetlink.c:5460 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1329 netlink_sendmsg+0xa57/0xd70 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x519/0x800 net/socket.c:2352 ___sys_sendmsg net/socket.c:2406 [inline] __sys_sendmsg+0x2b1/0x360 net/socket.c:2439 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb29 Code: Bad RIP value. RSP: 002b:00007f7160e6cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000502760 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a43 R14: 00000000004cd2a1 R15: 00007f7160e6d6d4 Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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.