ODEBUG: assert_init not available (active state 0) object type: timer_list hint:           (null)
Node 0 DMA32: 697*4kB (UME) 333*8kB (UME) 196*16kB (ME) 403*32kB (UME) 125*64kB (UM) 29*128kB (UM) 5*256kB (M) 4*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 36524kB
------------[ cut here ]------------
WARNING: CPU: 0 PID: 16716 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
Kernel panic - not syncing: panic_on_warn set ...

Node 0 
CPU: 0 PID: 16716 Comm: syz-executor.0 Not tainted 4.14.229-syzkaller #0
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+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
Normal: 
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 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
0*4kB 
0*8kB 
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
RSP: 0018:ffff888099207248 EFLAGS: 00010086
RAX: 0000000000000061 RBX: 0000000000000005 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bbbc0 RDI: ffffed1013240e3f
0*16kB 
RBP: ffffffff878b6e80 R08: 0000000000000061 R09: 0000000000000001
0*32kB 
R10: 0000000000000000 R11: ffff888065606580 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807c71a370 R15: 1ffff11013240e52
 debug_object_assert_init lib/debugobjects.c:656 [inline]
 debug_object_assert_init+0x1d3/0x2d0 lib/debugobjects.c:627
0*64kB 
0*128kB 
 debug_timer_assert_init kernel/time/timer.c:708 [inline]
 debug_assert_init kernel/time/timer.c:756 [inline]
 del_timer+0x5d/0xe0 kernel/time/timer.c:1151
 try_to_grab_pending+0x243/0x610 kernel/workqueue.c:1225
 __cancel_work_timer+0x90/0x460 kernel/workqueue.c:2923
oom_reaper: reaped process 16720 (syz-executor.2), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
0*256kB 
0*512kB 
 batadv_nc_mesh_free+0x41/0x120 net/batman-adv/network-coding.c:1880
syz-executor.2: 
 batadv_mesh_free+0x70/0x150 net/batman-adv/main.c:231
page allocation failure: order:0
 batadv_mesh_init+0x561/0x630 net/batman-adv/main.c:216
 batadv_softif_init_late+0xa26/0xc90 net/batman-adv/soft-interface.c:856
 register_netdevice+0x291/0xe40 net/core/dev.c:7590
0*1024kB 
 rtnl_newlink+0x14ff/0x1860 net/core/rtnetlink.c:2742
, mode:0x142c0c2(GFP_HIGHUSER|__GFP_COMP|__GFP_ZERO), nodemask=
(null)
0*2048kB 
syz-executor.2 cpuset=
0*4096kB 
 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4316
= 0kB
 netlink_rcv_skb+0x125/0x390 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
/
Node 1 
 mems_allowed=0-1
 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878
Normal: 
39*4kB 
(UM) 
7*8kB 
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
(UM) 
 SYSC_sendto net/socket.c:1763 [inline]
 SyS_sendto+0x1c7/0x2c0 net/socket.c:1731
12*16kB 
(ME) 
792*32kB 
(U) 
17*64kB 
(U) 
0*128kB 
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
0*256kB 
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x4193ec
RSP: 002b:00007ffc8c1718d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00000000014a4320 RCX: 00000000004193ec
RDX: 000000000000003c RSI: 00000000014a4370 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc8c171924 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
0*512kB 
R13: 00000000014a4370 R14: 0000000000000003 R15: 0000000000000000
0*1024kB 
Kernel Offset: disabled
Rebooting in 86400 seconds..