batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready batman_adv: batadv0: Interface activated: batadv_slave_1 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready divide error: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7136 Comm: syz-executor.0 Not tainted 4.14.222-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8881d316e6c0 task.stack: ffff8881d8a90000 RIP: 0010:fbcon_init+0x6ee/0x1d50 drivers/video/fbdev/core/fbcon.c:1065 RSP: 0018:ffff8881d8a97868 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8881d734c540 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff1103ae6991e RDI: ffff8881d734c8f4 RBP: ffff8881d8a978f8 R08: ffffffff8a44d0c0 R09: 0000000000000000 R10: ffff8881d734c874 R11: ffff8881d734c878 R12: ffff8881ef2becc0 R13: 0000000000000006 R14: ffff8881ef33fd40 R15: ffff8881ef33fef8 FS: 00007f37cd7ff700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000533018 CR3: 00000001db3fd003 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: visual_init+0x314/0x5d0 drivers/tty/vt/vt.c:746 vc_allocate drivers/tty/vt/vt.c:802 [inline] vc_allocate+0x2d3/0x700 drivers/tty/vt/vt.c:773 vt_ioctl+0x14a0/0x2090 drivers/tty/vt/vt_ioctl.c:719 tty_ioctl+0x438/0x1260 drivers/tty/tty_io.c:2661 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x180/0xfb0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x74/0x80 fs/ioctl.c:692 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x463b49 RSP: 002b:00007f37cd7ff188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000055bfa0 RCX: 0000000000463b49 RDX: 0000000020000000 RSI: 000000000000560f RDI: 0000000000000004 RBP: 00000000004ae538 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055bfa0 R13: 00007ffd5c9c752f R14: 00007f37cd7ff300 R15: 0000000000022000 Code: 89 d0 48 ba 00 00 00 00 00 fc ff df 48 8b 75 b0 48 c1 ee 03 0f b6 14 16 84 d2 74 09 80 fa 03 0f 8e 6f 10 00 00 31 d2 48 8b 7d a0 b3 b0 03 00 00 48 89 fa 48 c1 ea 03 41 89 c0 48 b8 00 00 00 RIP: fbcon_init+0x6ee/0x1d50 drivers/video/fbdev/core/fbcon.c:1065 RSP: ffff8881d8a97868 ---[ end trace 8e13282d505ce1e6 ]---