Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 29.780769] divide error: 0000 [#1] PREEMPT SMP KASAN [ 29.780773] Modules linked in: [ 29.780780] CPU: 0 PID: 7970 Comm: syz-executor609 Not tainted 4.14.237-syzkaller #0 [ 29.780783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.780786] task: ffff8880b3014180 task.stack: ffff8880b3a48000 [ 29.780798] RIP: 0010:fbcon_init+0xcb4/0x1cc0 [ 29.780800] RSP: 0018:ffff8880b3a4f7e0 EFLAGS: 00010246 [ 29.780804] RAX: 0000000000000000 RBX: ffff8880b0fa3780 RCX: 1ffff110161f4727 [ 29.780806] RDX: 0000000000000000 RSI: ffff8880963275f4 RDI: ffff8880b0fa3938 [ 29.780809] RBP: ffff888096327240 R08: ffffffff8b9c32e0 R09: 0000000000000000 [ 29.780811] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888238c94140 [ 29.780813] R13: 0000000000000000 R14: ffff888096327574 R15: 0000000000000000 [ 29.780817] FS: 0000000000cbc300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 29.780819] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.780822] CR2: 0000000000496dd3 CR3: 000000009bb1b000 CR4: 00000000001406f0 [ 29.780827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.780829] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.780830] Call Trace: [ 29.780842] visual_init+0x332/0x5e0 [ 29.780847] vc_allocate+0x2c5/0x640 [ 29.780854] ? lock_acquire+0x170/0x3f0 [ 29.780857] ? vc_cons_allocated+0x70/0x70 [ 29.780862] con_install+0x4d/0x450 [ 29.780865] ? vc_allocate+0x640/0x640 [ 29.780871] tty_init_dev.part.0+0x99/0x400 [ 29.780875] tty_open+0x669/0x8b0 [ 29.780880] ? tty_kopen+0x1c0/0x1c0 [ 29.780884] ? tty_kopen+0x1c0/0x1c0 [ 29.780889] chrdev_open+0x23c/0x6d0 [ 29.780893] ? __register_chrdev+0x3d0/0x3d0 [ 29.780899] do_dentry_open+0x44b/0xec0 [ 29.780902] ? __register_chrdev+0x3d0/0x3d0 [ 29.780907] ? __inode_permission+0xcd/0x2f0 [ 29.780911] vfs_open+0x105/0x220 [ 29.780916] path_openat+0x628/0x2970 [ 29.780922] ? path_lookupat+0x780/0x780 [ 29.780926] ? trace_hardirqs_on+0x10/0x10 [ 29.780929] ? lock_downgrade+0x740/0x740 [ 29.780935] do_filp_open+0x179/0x3c0 [ 29.780939] ? may_open_dev+0xe0/0xe0 [ 29.780945] ? do_raw_spin_unlock+0x164/0x220 [ 29.780949] ? __alloc_fd+0x1be/0x490 [ 29.780954] do_sys_open+0x296/0x410 [ 29.780958] ? filp_open+0x60/0x60 [ 29.780966] ? __do_page_fault+0x159/0xad0 [ 29.780972] ? do_syscall_64+0x4c/0x640 [ 29.780975] ? SyS_open+0x30/0x30 [ 29.780979] do_syscall_64+0x1d5/0x640 [ 29.780985] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.780989] RIP: 0033:0x402427 [ 29.780991] RSP: 002b:00007ffd9a739bc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 29.780995] RAX: ffffffffffffffda RBX: 00000000000073f6 RCX: 0000000000402427 [ 29.780997] RDX: 0000000000000002 RSI: 00007ffd9a739c40 RDI: 00000000ffffff9c [ 29.780999] RBP: 00007ffd9a739c40 R08: 0000000000000000 R09: 000000000000000e [ 29.781001] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 29.781004] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 0000000000400488 [ 29.781007] 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 <f7> b5 b0 03 00 00 48 89 f2 48 c1 ea 03 89 44 24 30 48 b8 00 00 [ 29.781111] RIP: fbcon_init+0xcb4/0x1cc0 RSP: ffff8880b3a4f7e0 [ 29.781202] ---[ end trace f67c4cdbb12875fa ]--- [ 29.781208] Kernel panic - not syncing: Fatal exception [ 29.782042] Kernel Offset: disabled [ 30.122804] Rebooting in 86400 seconds..