audit: type=1305 audit(1582369371.185:88860): audit_failure=2 old=2 auid=4294967295 ses=4294967295 res=1 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: 103 Comm: kworker/u4:3 Not tainted 4.13.0-rc5-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 task: ffff88012ac28400 task.stack: ffff88012ae98000 RIP: 0010:batadv_iv_ogm_queue_add+0xdf/0x1110 net/batman-adv/bat_iv_ogm.c:774 RSP: 0018:ffff88012ae9ef80 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88012ae9f1a8 RCX: ffff88010ee53500 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff88012ae9f1d0 R08: ffff88010ee53500 R09: 0000000000000001 R10: ffffed00255d3e7a R11: ffff88012ac28400 R12: 000000000000003c R13: ffff880119f78e40 R14: dffffc0000000000 R15: ffffed00255d3e7a FS: 0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200006c0 CR3: 000000011a572000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_ogm_schedule+0xcc0/0x10b0 net/batman-adv/bat_iv_ogm.c:978 batadv_iv_send_outstanding_bat_ogm_packet+0x576/0xa30 net/batman-adv/bat_iv_ogm.c:1805 process_one_work+0x9aa/0x1920 kernel/workqueue.c:2097 worker_thread+0x215/0x1820 kernel/workqueue.c:2231 kthread+0x338/0x400 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:425 Code: f2 c7 40 20 f2 f2 f2 f2 c7 40 24 00 f2 f2 f2 c7 40 28 f2 f2 f2 f2 c7 40 2c 00 f2 f2 f2 c7 40 30 f3 f3 f3 f3 48 89 f8 48 c1 e8 03 <0f> b6 04 10 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 bd 0c 00 RIP: batadv_iv_ogm_queue_add+0xdf/0x1110 net/batman-adv/bat_iv_ogm.c:774 RSP: ffff88012ae9ef80 ---[ end trace 2828822a476d85ee ]---