divide error: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7902 Comm: kworker/1:0 Not tainted 4.14.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events console_callback
task: ffff88805e764480 task.stack: ffff8881fe820000
RIP: 0010:fbcon_update_softback drivers/video/fbdev/core/fbcon.c:354 [inline]
RIP: 0010:fbcon_switch+0x1cb/0x1700 drivers/video/fbdev/core/fbcon.c:2195
RSP: 0018:ffff8881fe827a88 EFLAGS: 00010246
RAX: 0000000000008000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8ad70a40 RDI: ffff8880a864087c
RBP: ffff888219250040 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a8640540
R13: ffff8880a5feed40 R14: 0000000000000001 R15: ffff8880a86409b8
FS:  0000000000000000(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005605170bd000 CR3: 000000008d5fd000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 redraw_screen+0x332/0x760 drivers/tty/vt/vt.c:689
 complete_change_console+0xf9/0x350 drivers/tty/vt/vt_ioctl.c:1284
 change_console+0x156/0x270 drivers/tty/vt/vt_ioctl.c:1409
 console_callback+0x32c/0x380 drivers/tty/vt/vt.c:2473
 process_one_work+0x7c0/0x14c0 kernel/workqueue.c:2116
 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 0c a6 bc 07 83 c2 03 48 89 2d 42 a6 bc 07 48 89 2d bb a5 bc 07 38 ca 7c 08 84 c9 0f 85 9a 13 00 00 41 8b 9c 24 3c 03 00 00 31 d2 <f7> f3 83 f8 05 89 44 24 10 0f 8e b8 0a 00 00 e8 31 52 40 fe 8b 
RIP: fbcon_update_softback drivers/video/fbdev/core/fbcon.c:354 [inline] RSP: ffff8881fe827a88
RIP: fbcon_switch+0x1cb/0x1700 drivers/video/fbdev/core/fbcon.c:2195 RSP: ffff8881fe827a88
---[ end trace ba1efa0a7fd5caed ]---