------------[ cut here ]------------
WARNING: CPU: 0 PID: 2251 at net/batman-adv/bat_iv_ogm.c:555 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:555 [inline]
WARNING: CPU: 0 PID: 2251 at net/batman-adv/bat_iv_ogm.c:555 batadv_iv_send_outstanding_bat_ogm_packet+0x5a2/0x680 net/batman-adv/bat_iv_ogm.c:1797
Kernel panic - not syncing: panic_on_warn set ...

 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a639
RSP: 002b:00007f34c2c9dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f34c2c9dc90 RCX: 000000000045a639
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f34c2c9e6d4
R13: 00000000004c8d75 R14: 00000000004df5e0 R15: 0000000000000007
CPU: 0 PID: 2251 Comm: kworker/u4:4 Not tainted 4.14.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop3' (ffff8880a49fe9e0): kobject_uevent_env
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
kobject: 'loop3' (ffff8880a49fe9e0): fill_kobj_path: path = '/devices/virtual/block/loop3'
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x2f/0x2f kernel/panic.c:547
kobject: 'loop2' (ffff8880a4996960): kobject_uevent_env
 report_bug+0x216/0x254 lib/bug.c:186
kobject: 'loop2' (ffff8880a4996960): fill_kobj_path: path = '/devices/virtual/block/loop2'
 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
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:555 [inline]
RIP: 0010:batadv_iv_send_outstanding_bat_ogm_packet+0x5a2/0x680 net/batman-adv/bat_iv_ogm.c:1797
RSP: 0018:ffff8880a1e77cc8 EFLAGS: 00010297
RAX: ffff8880a1e600c0 RBX: ffff88804edde408 RCX: ffff8880a1e60940
RDX: 0000000000000000 RSI: ffffffff87790c60 RDI: ffff8880a9a4b068
RBP: ffff8880a1e77d38 R08: 00000000000014ea R09: ffffffff88c8ed10
R10: ffff8880a1e60968 R11: ffff8880a1e600c0 R12: ffff888050a50b00
R13: ffff88804edde3c0 R14: ffff8880a5c4c540 R15: ffff8880a9a4b000
 process_one_work+0x863/0x1600 kernel/workqueue.c:2114
 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248
 kthread+0x319/0x430 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Kernel Offset: disabled
Rebooting in 86400 seconds..