divide error: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 7989 Comm: syz-executor338 Not tainted 4.14.239-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880958a25c0 task.stack: ffff888098cf8000 RIP: 0010:fbcon_init+0xcb4/0x1cc0 drivers/video/fbdev/core/fbcon.c:1065 RSP: 0018:ffff888098cff7e0 EFLAGS: 00010246 RAX: 00000000000003c0 RBX: ffff8880b09d3800 RCX: 1ffff1101613a737 RDX: 0000000000000000 RSI: ffff888095a50474 RDI: ffff8880b09d39b8 RBP: ffff888095a500c0 R08: ffffffff8b9c42e0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882389188c0 R13: 0000000000000000 R14: ffff888095a503f4 R15: 00000000000003c0 FS: 0000000000e2e300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000496dd3 CR3: 00000000ab90b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: visual_init+0x332/0x5e0 drivers/tty/vt/vt.c:746 vc_allocate+0x2c5/0x640 drivers/tty/vt/vt.c:802 con_install+0x4d/0x450 drivers/tty/vt/vt.c:2899 tty_driver_install_tty drivers/tty/tty_io.c:1225 [inline] tty_init_dev.part.0+0x99/0x400 drivers/tty/tty_io.c:1338 tty_init_dev drivers/tty/tty_io.c:1328 [inline] tty_open_by_driver drivers/tty/tty_io.c:1973 [inline] tty_open+0x669/0x8b0 drivers/tty/tty_io.c:2021 chrdev_open+0x23c/0x6d0 fs/char_dev.c:423 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3569 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x402487 RSP: 002b:00007ffcc5102f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 0000000000402487 RDX: 0000000000000002 RSI: 00007ffcc5102fa0 RDI: 00000000ffffff9c RBP: 00007ffcc5102fa0 R08: 0000000000000000 R09: 000000000000000e R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffcc510303c R14: 00007ffcc5103050 R15: 00007ffcc5103040 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 RIP: fbcon_init+0xcb4/0x1cc0 drivers/video/fbdev/core/fbcon.c:1065 RSP: ffff888098cff7e0 ---[ end trace 3a5b89be4651ff8d ]---