bridge0: port 1(bridge_slave_0) entered disabled state
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 778 Comm: kworker/u4:0 Not tainted 4.17.0-rc7-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
RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:785
RSP: 0018:ffff8800a0eefaa8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88009bf69640 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: ffff8800a0eefbc0 R08: ffff8800a727dac0 R09: 0000000000000001
R10: ffffed00141ddf8f R11: 0000000000000003 R12: ffff8800a727dac0
R13: dffffc0000000000 R14: ffffed0014e4fb66 R15: 000000000000003c
FS:  0000000000000000(0000) GS:ffff8800aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e09814000 CR3: 00000000a12a8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 batadv_iv_ogm_schedule+0xb7e/0xf30 net/batman-adv/bat_iv_ogm.c:989
 batadv_iv_send_outstanding_bat_ogm_packet+0x4b2/0x7b0 net/batman-adv/bat_iv_ogm.c:1817
 process_one_work+0x780/0x1570 kernel/workqueue.c:2145
 worker_thread+0xd0/0xc00 kernel/workqueue.c:2279
 kthread+0x316/0x3d0 kernel/kthread.c:240
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:412
Code: ff 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 
RIP: batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:785 RSP: ffff8800a0eefaa8
---[ end trace e5b3e9643a285bee ]---