DMA: 
 2569
69*4kB 
ODEBUG: assert_init not available (active state 0) object type: timer_list hint:           (null)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7553 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 7553 Comm: syz-executor.0 Not tainted 4.14.162-syzkaller #0
(UME) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
3*8kB 
(M) 
 __warn.cold+0x2f/0x2f kernel/panic.c:547
4*16kB (ME) 
 report_bug+0x216/0x254 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+0x1bb/0x310 arch/x86/kernel/traps.c:295
10*32kB 
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
(UME) 
RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
8*64kB 
RSP: 0018:ffff888166b87148 EFLAGS: 00010086
RAX: 0000000000000061 RBX: 0000000000000005 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff87049200 RDI: ffffed102cd70e1f
RBP: ffff888166b87170 R08: 0000000000000061 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88808c7602c0 R12: ffffffff86cbf760
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809355e4b0
 debug_object_assert_init lib/debugobjects.c:656 [inline]
 debug_object_assert_init+0x22f/0x300 lib/debugobjects.c:627
(UME) 
 debug_timer_assert_init kernel/time/timer.c:707 [inline]
 debug_assert_init kernel/time/timer.c:755 [inline]
 del_timer+0x67/0xf0 kernel/time/timer.c:1150
7*128kB 
 try_to_grab_pending+0x263/0x620 kernel/workqueue.c:1225
 __cancel_work_timer+0xb4/0x480 kernel/workqueue.c:2921
(UME) 3*256kB 
 cancel_delayed_work_sync+0x1b/0x20 kernel/workqueue.c:3082
 batadv_nc_mesh_free+0x46/0x11e net/batman-adv/network-coding.c:1887
 batadv_mesh_free+0x75/0x160 net/batman-adv/main.c:231
(UME) 
 batadv_mesh_init+0x59a/0x670 net/batman-adv/main.c:216
 batadv_softif_init_late+0xa33/0xca0 net/batman-adv/soft-interface.c:856
1*512kB 
 register_netdevice+0x28e/0xca0 net/core/dev.c:7599
 rtnl_newlink+0x1441/0x1700 net/core/rtnetlink.c:2732
(E) 
3*1024kB 
 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
(UME) 
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312
2*2048kB 
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 SYSC_sendto+0x206/0x310 net/socket.c:1763
(UE) 
 SyS_sendto+0x40/0x50 net/socket.c:1731
0*4096kB 
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
= 10540kB
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x414c43
RSP: 002b:00007ffdef7624a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 0000000000414c43
RDX: 000000000000003c RSI: 0000000000a72250 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffdef7624b0 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000a72250 R15: 0000000000000003
Kernel Offset: disabled
Rebooting in 86400 seconds..