unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:12381 slab_unreclaimable:115374
 mapped:35420 shmem:29452 pagetables:584 bounce:0
 free:25206 free_pcp:19 free_cma:0
------------[ cut here ]------------
WARNING: CPU: 1 PID: 9216 at net/batman-adv/bat_iv_ogm.c:588 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:588 [inline]
WARNING: CPU: 1 PID: 9216 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 ...

CPU: 1 PID: 9216 Comm: kworker/u4:5 Not tainted 4.14.232-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+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
Node 0 active_anon:72480kB inactive_anon:96960kB active_file:8kB inactive_file:132kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:117304kB dirty:0kB writeback:0kB shmem:101372kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 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
batman_adv: batadv0: Removing interface: batadv_slave_1
 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: 0000:ffff8880952ffcf0 EFLAGS: 00010297
RAX: ffff8880a58cc240 RBX: ffff8880a5e4f888 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880b54f9b70
RBP: ffff88804f53c780 R08: ffffffff8b995b68 R09: 00000000000405f2
R10: ffff8880a58ccaf0 R11: ffff8880a58cc240 R12: ffff8880b54f9b00
R13: ffff8880a5e4f840 R14: ffff8880a2545240 R15: ffff8880a5e4f928
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 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..