[   48.748420] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[   48.757670] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
[   48.767429] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[   48.777214] batman_adv: batadv0: Interface activated: batadv_slave_1
[   48.784812] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   53.121369] NOHZ: local_softirq_pending 08
[   94.723528] NOHZ: local_softirq_pending 08
[   96.002324] NOHZ: local_softirq_pending 08
[  238.089424] NOHZ: local_softirq_pending 08
[  442.885766] NOHZ: local_softirq_pending 08
[  463.956003] syz-executor.4 (6538) used greatest stack depth: 24088 bytes left
[  464.372290] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  464.379119] batman_adv: batadv0: Removing interface: batadv_slave_0
[  464.387472] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  464.394995] batman_adv: batadv0: Removing interface: batadv_slave_1
[  464.406351] kasan: CONFIG_KASAN_INLINE enabled
[  464.411302] kasan: GPF could be caused by NULL-ptr deref or user memory access
[  464.418907] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[  464.426016] Modules linked in:
[  464.429228] CPU: 1 PID: 65 Comm: kworker/u4:2 Not tainted 4.10.0-rc3-syzkaller #0
[  464.437231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  464.446762] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
[  464.454016] task: ffff88012ac0e0c0 task.stack: ffff88012ac10000
[  464.460377] RIP: 0010:batadv_iv_ogm_queue_add+0x2f/0xdb0
[  464.468083] RSP: 0018:ffff88012ac17b78 EFLAGS: 00010286
[  464.473437] RAX: dffffc0000000000 RBX: ffff88010d579580 RCX: ffff88010d579580
[  464.483106] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[  464.491270] RBP: ffff88012ac17c10 R08: ffff88010d579580 R09: 0000000000000001
[  464.498708] R10: ffff88012ac0e918 R11: ffff88012ac0e0c0 R12: 000000000000003c
[  464.505987] R13: 0000000000000000 R14: ffff88010d579580 R15: ffff8801182264c0
[  464.513472] FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
[  464.521767] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  464.527931] CR2: 00007fc25cbc3000 CR3: 0000000123237000 CR4: 00000000001406e0
[  464.535277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  464.543693] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  464.552657] Call Trace:
[  464.555248]  ? batadv_iv_ogm_schedule+0x7c9/0xcc0
[  464.560456]  batadv_iv_ogm_schedule+0x95a/0xcc0
[  464.565471]  batadv_iv_send_outstanding_bat_ogm_packet+0x4e0/0x770
[  464.572011]  ? rcu_lockdep_current_cpu_online+0xdc/0x130
[  464.577730]  process_one_work+0x72f/0x16a0
[  464.581954]  ? process_one_work+0x689/0x16a0
[  464.586369]  ? finish_task_switch+0x17f/0x640
[  464.590864]  ? cancel_delayed_work_sync+0x10/0x10
[  464.595883]  worker_thread+0xe1/0x1110
[  464.599759]  kthread+0x2c9/0x3d0
[  464.603289]  ? process_one_work+0x16a0/0x16a0
[  464.607979]  ? kthread_create_on_node+0xa0/0xa0
[  464.612853]  ret_from_fork+0x2a/0x40
[  464.616576] Code: 00 00 00 fc ff df 55 48 89 e5 41 57 49 89 ff 48 8d 7e 03 41 56 41 55 49 89 f5 41 54 41 89 d4 48 89 fa 48 c1 ea 03 53 48 83 ec 70 <0f> b6 04 02 48 89 fa 48 89 4d b0 83 e2 07 4c 89 45 c0 44 89 4d 
[  464.636702] RIP: batadv_iv_ogm_queue_add+0x2f/0xdb0 RSP: ffff88012ac17b78
[  464.645002] ---[ end trace 847f38648a1be9cd ]---
[  464.650518] Kernel panic - not syncing: Fatal exception
[  464.657627] Kernel Offset: disabled