rtnl_notify net/core/rtnetlink.c:653 [inline]
 rtmsg_ifinfo_send net/core/rtnetlink.c:2930 [inline]
 rtmsg_ifinfo_event.part.0+0x9a/0xc0 net/core/rtnetlink.c:2944
 rtmsg_ifinfo_event net/core/rtnetlink.c:4366 [inline]
 rtnetlink_event+0xe6/0x110 net/core/rtnetlink.c:4359
------------[ cut here ]------------
 notifier_call_chain+0x107/0x1a0 kernel/notifier.c:93
 netdev_upper_dev_unlink+0xac/0xe0 net/core/dev.c:6401
WARNING: CPU: 0 PID: 5 at net/batman-adv/bat_iv_ogm.c:588 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:588 [inline]
WARNING: CPU: 0 PID: 5 at net/batman-adv/bat_iv_ogm.c:588 batadv_iv_send_outstanding_bat_ogm_packet+0x611/0x6f0 net/batman-adv/bat_iv_ogm.c:1847
Kernel panic - not syncing: panic_on_warn set ...

 batadv_hardif_disable_interface.cold+0x7eb/0xa1f net/batman-adv/hard-interface.c:853
 batadv_softif_slave_del+0x57/0xb0 net/batman-adv/soft-interface.c:915
 do_set_master+0xd0/0x200 net/core/rtnetlink.c:1947
 do_setlink+0xa12/0x2d30 net/core/rtnetlink.c:2098
 rtnl_newlink+0x11bb/0x1720 net/core/rtnetlink.c:2660
 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4315
 netlink_rcv_skb+0x127/0x370 net/netlink/af_netlink.c:2433
 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline]
 netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313
 netlink_sendmsg+0x64a/0xbb0 net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
 __sys_sendmsg+0xa3/0x120 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45ca59
RSP: 002b:00007f58f0e87c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000501a20 RCX: 000000000045ca59
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 000000000078c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
R13: 0000000000000a21 R14: 00000000004cd03c R15: 00007f58f0e886d4
CPU: 0 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x2f/0x30 kernel/panic.c:547
 report_bug+0x20a/0x248 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:588 [inline]
RIP: 0010:batadv_iv_send_outstanding_bat_ogm_packet+0x611/0x6f0 net/batman-adv/bat_iv_ogm.c:1847
RSP: 0018:ffff8880a9ccfce8 EFLAGS: 00010297
RAX: ffff8880a9c7c140 RBX: ffff8880a8203588 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88805e38edf0
RBP: ffff8880599c5cc0 R08: 0000000000004b3c R09: ffffffff89e7b360
R10: ffff8880a9c7c9f0 R11: ffff8880a9c7c140 R12: ffff88805e38ed80
R13: ffff8880a8203540 R14: ffff88808f6664c0 R15: ffff8880a8203628
 process_one_work+0x7c0/0x14c0 kernel/workqueue.c:2116
 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Kernel Offset: disabled
Rebooting in 86400 seconds..