Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.40' (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 executing program executing program syzkaller login: [ 28.254352] divide error: 0000 [#1] PREEMPT SMP KASAN [ 28.254355] Modules linked in: [ 28.254370] CPU: 1 PID: 8028 Comm: syz-executor797 Not tainted 4.14.206-syzkaller #0 [ 28.254374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.254379] task: ffff8880b1844000 task.stack: ffff8880b2c88000 [ 28.254389] RIP: 0010:fbcon_init+0xcb4/0x1cc0 [ 28.254393] RSP: 0018:ffff8880b2c8f7e0 EFLAGS: 00010246 [ 28.254398] RAX: 0000000000000000 RBX: ffff8880b09fcac0 RCX: 1ffff1101613f98f [ 28.254403] RDX: 0000000000000000 RSI: ffff8880b2a2b234 RDI: ffff8880b09fcc78 [ 28.254406] RBP: ffff8880b2a2ae80 R08: ffffffff8b9a3438 R09: 0000000000000000 [ 28.254409] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888238fd88c0 [ 28.254413] R13: 0000000000000000 R14: ffff8880b2a2b1b4 R15: 0000000000000000 [ 28.254418] FS: 0000000001412880(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 28.254422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.254426] CR2: 00000000004b4d13 CR3: 00000000a51cb000 CR4: 00000000001406e0 [ 28.254433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.254436] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.254438] Call Trace: [ 28.254464] visual_init+0x332/0x5e0 [ 28.254473] vc_allocate+0x2c5/0x640 [ 28.254479] ? lock_acquire+0x170/0x3f0 [ 28.254486] ? vc_cons_allocated+0x70/0x70 [ 28.254493] con_install+0x4d/0x450 [ 28.254499] ? vc_allocate+0x640/0x640 [ 28.254507] tty_init_dev.part.0+0x99/0x400 [ 28.254514] tty_open+0x669/0x8b0 [ 28.254521] ? tty_kopen+0x1c0/0x1c0 [ 28.254529] ? tty_kopen+0x1c0/0x1c0 [ 28.254535] chrdev_open+0x23c/0x6d0 [ 28.254540] ? __register_chrdev+0x3d0/0x3d0 [ 28.254548] do_dentry_open+0x44b/0xec0 [ 28.254554] ? __register_chrdev+0x3d0/0x3d0 [ 28.254561] ? __inode_permission+0xcd/0x2f0 [ 28.254567] vfs_open+0x105/0x220 [ 28.254573] path_openat+0x628/0x2970 [ 28.254584] ? path_lookupat+0x780/0x780 [ 28.254589] ? trace_hardirqs_on+0x10/0x10 [ 28.254597] do_filp_open+0x179/0x3c0 [ 28.254602] ? may_open_dev+0xe0/0xe0 [ 28.254613] ? do_raw_spin_unlock+0x164/0x220 [ 28.254620] ? __alloc_fd+0x1be/0x490 [ 28.254628] do_sys_open+0x296/0x410 [ 28.254635] ? filp_open+0x60/0x60 [ 28.254644] ? __do_page_fault+0x159/0xad0 [ 28.254650] ? do_syscall_64+0x4c/0x640 [ 28.254655] ? do_sys_open+0x410/0x410 [ 28.254662] do_syscall_64+0x1d5/0x640 [ 28.254675] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.254681] RIP: 0033:0x401260 [ 28.254685] RSP: 002b:00007ffc8af24548 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 28.254689] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000401260 [ 28.254693] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffc8af24570 [ 28.254695] RBP: 0000000000006ca6 R08: 0000000000000000 R09: 000000000000000e [ 28.254698] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000402280 [ 28.254701] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 28.254707] 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 [ 28.254823] RIP: fbcon_init+0xcb4/0x1cc0 RSP: ffff8880b2c8f7e0 [ 28.254910] ---[ end trace f78553a6d2b9b8aa ]--- [ 28.254913] Kernel panic - not syncing: Fatal exception [ 28.255650] Kernel Offset: disabled [ 28.576984] Rebooting in 86400 seconds..