Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.70' (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 executing program syzkaller login: [ 31.941775] divide error: 0000 [#1] PREEMPT SMP KASAN [ 31.941831] Modules linked in: [ 31.941840] CPU: 0 PID: 7978 Comm: syz-executor222 Not tainted 4.14.226-syzkaller #0 [ 31.941843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.941847] task: ffff8880b32f40c0 task.stack: ffff88809d1d0000 [ 31.941856] RIP: 0010:fbcon_init+0xcb4/0x1cc0 [ 31.941859] RSP: 0018:ffff88809d1d77e0 EFLAGS: 00010246 [ 31.941864] RAX: 0000000000000000 RBX: ffff8880b0926280 RCX: 1ffff11016124c87 [ 31.941867] RDX: 0000000000000000 RSI: ffff8880b31f0ff4 RDI: ffff8880b0926438 [ 31.941870] RBP: ffff8880b31f0c40 R08: ffffffff8b9bc2e0 R09: 0000000000000000 [ 31.941873] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888238870000 [ 31.941875] R13: 0000000000000000 R14: ffff8880b31f0f74 R15: 0000000000000000 [ 31.941879] FS: 0000000002159300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 31.941882] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.941885] CR2: 0000000000496dd3 CR3: 000000009b521000 CR4: 00000000001406f0 [ 31.941891] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.941894] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.941895] Call Trace: [ 31.941907] visual_init+0x332/0x5e0 [ 31.941913] vc_allocate+0x2c5/0x640 [ 31.941919] ? lock_acquire+0x170/0x3f0 [ 31.941924] ? vc_cons_allocated+0x70/0x70 [ 31.941929] con_install+0x4d/0x450 [ 31.941933] ? vc_allocate+0x640/0x640 [ 31.941939] tty_init_dev.part.0+0x99/0x400 [ 31.941943] tty_open+0x669/0x8b0 [ 31.941948] ? tty_kopen+0x1c0/0x1c0 [ 31.941954] ? tty_kopen+0x1c0/0x1c0 [ 31.941959] chrdev_open+0x23c/0x6d0 [ 31.941963] ? __register_chrdev+0x3d0/0x3d0 [ 31.941970] do_dentry_open+0x44b/0xec0 [ 31.941974] ? __register_chrdev+0x3d0/0x3d0 [ 31.941980] ? __inode_permission+0xcd/0x2f0 [ 31.941985] vfs_open+0x105/0x220 [ 31.941991] path_openat+0x628/0x2970 [ 31.941998] ? path_lookupat+0x780/0x780 [ 31.942003] ? trace_hardirqs_on+0x10/0x10 [ 31.942010] do_filp_open+0x179/0x3c0 [ 31.942016] ? may_open_dev+0xe0/0xe0 [ 31.942024] ? do_raw_spin_unlock+0x164/0x220 [ 31.942029] ? __alloc_fd+0x1be/0x490 [ 31.942035] do_sys_open+0x296/0x410 [ 31.942040] ? filp_open+0x60/0x60 [ 31.942046] ? __do_page_fault+0x159/0xad0 [ 31.942051] ? do_syscall_64+0x4c/0x640 [ 31.942055] ? SyS_open+0x30/0x30 [ 31.942060] do_syscall_64+0x1d5/0x640 [ 31.942068] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 31.942072] RIP: 0033:0x4024a7 [ 31.942075] RSP: 002b:00007ffccf37ee70 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 31.942080] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00000000004024a7 [ 31.942083] RDX: 0000000000000002 RSI: 00007ffccf37ef00 RDI: 00000000ffffff9c [ 31.942086] RBP: 00007ffccf37ef00 R08: 0000000000000000 R09: 000000000000000e [ 31.942089] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 31.942092] R13: 00007ffccf37ef9c R14: 00007ffccf37efb0 R15: 00007ffccf37efa0 [ 31.942097] 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 [ 31.942191] RIP: fbcon_init+0xcb4/0x1cc0 RSP: ffff88809d1d77e0 [ 31.942199] ---[ end trace 76c0636bfb07a52c ]--- [ 31.942202] Kernel panic - not syncing: Fatal exception [ 31.943323] Kernel Offset: disabled [ 32.283991] Rebooting in 86400 seconds..