[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 31.111961] divide error: 0000 [#1] PREEMPT SMP KASAN [ 31.111964] Modules linked in: [ 31.111974] CPU: 1 PID: 8001 Comm: syz-executor271 Not tainted 4.14.209-syzkaller #0 [ 31.111978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.111982] task: ffff88809acf80c0 task.stack: ffff8880b3f30000 [ 31.111992] RIP: 0010:fbcon_init+0xcb4/0x1cc0 [ 31.111995] RSP: 0018:ffff8880b3f377e0 EFLAGS: 00010246 [ 31.112000] RAX: 0000000000000000 RBX: ffff888238ecc2c0 RCX: 1ffff110471d988f [ 31.112003] RDX: 0000000000000000 RSI: ffff8880b3973834 RDI: ffff888238ecc478 [ 31.112006] RBP: ffff8880b3973480 R08: ffffffff8b9b7bf8 R09: 0000000000000000 [ 31.112010] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b091ed40 [ 31.112013] R13: 0000000000000000 R14: ffff8880b39737b4 R15: 0000000000000000 [ 31.112018] FS: 00000000018ef880(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 31.112022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.112025] CR2: 00000000006cc090 CR3: 000000009ef0e000 CR4: 00000000001406e0 [ 31.112033] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.112036] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.112038] Call Trace: [ 31.112053] visual_init+0x332/0x5e0 [ 31.112061] vc_allocate+0x2c5/0x640 [ 31.112067] ? lock_acquire+0x170/0x3f0 [ 31.112074] ? vc_cons_allocated+0x70/0x70 [ 31.112082] con_install+0x4d/0x450 [ 31.112088] ? vc_allocate+0x640/0x640 [ 31.112097] tty_init_dev.part.0+0x99/0x400 [ 31.112104] tty_open+0x669/0x8b0 [ 31.112112] ? tty_kopen+0x1c0/0x1c0 [ 31.112120] ? tty_kopen+0x1c0/0x1c0 [ 31.112126] chrdev_open+0x23c/0x6d0 [ 31.112132] ? __register_chrdev+0x3d0/0x3d0 [ 31.112140] do_dentry_open+0x44b/0xec0 [ 31.112146] ? __register_chrdev+0x3d0/0x3d0 [ 31.112155] ? __inode_permission+0xcd/0x2f0 [ 31.112162] vfs_open+0x105/0x220 [ 31.112169] path_openat+0x628/0x2970 [ 31.112177] ? path_lookupat+0x780/0x780 [ 31.112183] ? trace_hardirqs_on+0x10/0x10 [ 31.112191] do_filp_open+0x179/0x3c0 [ 31.112197] ? may_open_dev+0xe0/0xe0 [ 31.112210] ? do_raw_spin_unlock+0x164/0x220 [ 31.112217] ? __alloc_fd+0x1be/0x490 [ 31.112227] do_sys_open+0x296/0x410 [ 31.112234] ? filp_open+0x60/0x60 [ 31.112243] ? __do_page_fault+0x159/0xad0 [ 31.112250] ? do_syscall_64+0x4c/0x640 [ 31.112256] ? do_sys_open+0x410/0x410 [ 31.112263] do_syscall_64+0x1d5/0x640 [ 31.112275] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 31.112280] RIP: 0033:0x401260 [ 31.112283] RSP: 002b:00007ffd24972be8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 31.112289] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000401260 [ 31.112293] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffd24972c10 [ 31.112296] RBP: 0000000000007893 R08: 0000000000000000 R09: 000000000000000e [ 31.112300] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000402280 [ 31.112304] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 31.112311] 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 [ 31.112427] RIP: fbcon_init+0xcb4/0x1cc0 RSP: ffff8880b3f377e0 [ 31.112434] ---[ end trace ebf0510f62c3c8f7 ]--- [ 31.112438] Kernel panic - not syncing: Fatal exception [ 31.113130] Kernel Offset: disabled [ 31.433165] Rebooting in 86400 seconds..