[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.57' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 29.057792] divide error: 0000 [#1] PREEMPT SMP KASAN [ 29.057795] Modules linked in: [ 29.057805] CPU: 0 PID: 7998 Comm: syz-executor023 Not tainted 4.14.213-syzkaller #0 [ 29.057808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.057819] task: ffff8880b2bd4680 task.stack: ffff888096628000 [ 29.057828] RIP: 0010:fbcon_init+0xcb4/0x1cc0 [ 29.057831] RSP: 0018:ffff88809662f7e0 EFLAGS: 00010246 [ 29.057837] RAX: 0000000000000320 RBX: ffff888238f07540 RCX: 1ffff110471e0edf [ 29.057841] RDX: 0000000000000000 RSI: ffff8880b28608b4 RDI: ffff888238f076f8 [ 29.057844] RBP: ffff8880b2860500 R08: ffffffff8b9b8bf8 R09: 0000000000000000 [ 29.057847] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0b7b500 [ 29.057849] R13: 0000000000000000 R14: ffff8880b2860834 R15: 0000000000000320 [ 29.057852] FS: 000000000170d880(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 29.057855] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.057857] CR2: 00000000004b4d13 CR3: 000000009a499000 CR4: 00000000001406f0 [ 29.057862] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.057864] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.057865] Call Trace: [ 29.057877] visual_init+0x332/0x5e0 [ 29.057882] vc_allocate+0x2c5/0x640 [ 29.057887] ? lock_acquire+0x170/0x3f0 [ 29.057891] ? vc_cons_allocated+0x70/0x70 [ 29.057896] con_install+0x4d/0x450 [ 29.057900] ? vc_allocate+0x640/0x640 [ 29.057906] tty_init_dev.part.0+0x99/0x400 [ 29.057910] tty_open+0x669/0x8b0 [ 29.057915] ? tty_kopen+0x1c0/0x1c0 [ 29.057919] ? tty_kopen+0x1c0/0x1c0 [ 29.057924] chrdev_open+0x23c/0x6d0 [ 29.057928] ? __register_chrdev+0x3d0/0x3d0 [ 29.057933] do_dentry_open+0x44b/0xec0 [ 29.057937] ? __register_chrdev+0x3d0/0x3d0 [ 29.057941] ? __inode_permission+0xcd/0x2f0 [ 29.057945] vfs_open+0x105/0x220 [ 29.057950] path_openat+0x628/0x2970 [ 29.057955] ? path_lookupat+0x780/0x780 [ 29.057958] ? trace_hardirqs_on+0x10/0x10 [ 29.057964] do_filp_open+0x179/0x3c0 [ 29.057967] ? may_open_dev+0xe0/0xe0 [ 29.057974] ? do_raw_spin_unlock+0x164/0x220 [ 29.057979] ? __alloc_fd+0x1be/0x490 [ 29.057984] do_sys_open+0x296/0x410 [ 29.057988] ? filp_open+0x60/0x60 [ 29.057994] ? __do_page_fault+0x159/0xad0 [ 29.058000] ? do_syscall_64+0x4c/0x640 [ 29.058003] ? do_sys_open+0x410/0x410 [ 29.058007] do_syscall_64+0x1d5/0x640 [ 29.058014] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.058018] RIP: 0033:0x401260 [ 29.058020] RSP: 002b:00007fff748368e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 29.058024] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000401260 [ 29.058026] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007fff74836910 [ 29.058028] RBP: 0000000000007014 R08: 0000000000000000 R09: 000000000000000e [ 29.058030] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000402280 [ 29.058032] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 29.058036] Code: 54 24 30 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 8d 0d 00 00 31 d2 44 89 f8 48 8b 74 24 38 b5 b0 03 00 00 48 89 f2 48 c1 ea 03 89 44 24 30 48 b8 00 00 [ 29.058123] RIP: fbcon_init+0xcb4/0x1cc0 RSP: ffff88809662f7e0 [ 29.058131] ---[ end trace a34bd25f0bff2ed6 ]--- [ 29.058135] Kernel panic - not syncing: Fatal exception [ 29.058794] Kernel Offset: disabled [ 29.378612] Rebooting in 86400 seconds..