batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 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: 0 PID: 10111 Comm: kworker/u4:2 Not tainted 4.14.166-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: ffff88805d9302c0 task.stack: ffff888169250000 RIP: 0010:batadv_iv_ogm_schedule+0x24b/0xe20 net/batman-adv/bat_iv_ogm.c:951 RSP: 0000:ffff888169257c18 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000006c00 RCX: 1ffff1100bb26171 RDX: 0000000000000002 RSI: ffff88805d930b68 RDI: 0000000000000016 RBP: ffff888169257cb8 R08: 0000000000000001 R09: ffff88805d930b88 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000007 R14: ffff888080e85540 R15: ffff888080e85540 FS: 0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c434415600 CR3: 000000008c779000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_send_outstanding_bat_ogm_packet+0x4a1/0x680 net/batman-adv/bat_iv_ogm.c:1809 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 Code: 48 c1 ea 03 80 3c 02 00 0f 85 a5 0b 00 00 4d 8b a7 80 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 16 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 RIP: batadv_iv_ogm_schedule+0x24b/0xe20 net/batman-adv/bat_iv_ogm.c:951 RSP: ffff888169257c18 ---[ end trace 3414b5ae3120aeb8 ]---