divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2700 Comm: kworker/0:7 Not tainted 5.7.0-rc6-next-20200522-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events console_callback
RIP: 0010:fbcon_update_softback drivers/video/fbdev/core/fbcon.c:378 [inline]
RIP: 0010:fbcon_switch+0x1fc/0x16f0 drivers/video/fbdev/core/fbcon.c:2256
Code: 2d 49 2b 7a 09 48 89 2d c2 2a 7a 09 38 ca 7c 08 84 c9 0f 85 83 12 00 00 41 8b 9c 24 8c 03 00 00 44 89 f0 31 d2 bf 05 00 00 00 <f7> f3 41 89 c6 89 c6 e8 98 51 b0 fd 41 83 fe 05 0f 8e 4a 0b 00 00
RSP: 0018:ffffc90008a7f9f0 EFLAGS: 00010246
RAX: 0000000000008000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff83c356eb RDI: 0000000000000005
RBP: ffff8880a3ba0000 R08: ffff88809f6ea340 R09: fffffbfff1558fd9
R10: ffffffff8aac7ec7 R11: fffffbfff1558fd8 R12: ffff888095857000
R13: ffff8880a3b05000 R14: 0000000000008000 R15: ffffffff88989840
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004f2950 CR3: 00000000a63ca000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 redraw_screen+0x2ae/0x770 drivers/tty/vt/vt.c:1015
 complete_change_console+0x104/0x3a0 drivers/tty/vt/vt_ioctl.c:1274
 change_console+0x197/0x2c0 drivers/tty/vt/vt_ioctl.c:1399
 console_callback+0x3b1/0x410 drivers/tty/vt/vt.c:2850
 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x3b5/0x4a0 kernel/kthread.c:291
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
Modules linked in:
---[ end trace c6f9422415668c7e ]---
RIP: 0010:fbcon_update_softback drivers/video/fbdev/core/fbcon.c:378 [inline]
RIP: 0010:fbcon_switch+0x1fc/0x16f0 drivers/video/fbdev/core/fbcon.c:2256
Code: 2d 49 2b 7a 09 48 89 2d c2 2a 7a 09 38 ca 7c 08 84 c9 0f 85 83 12 00 00 41 8b 9c 24 8c 03 00 00 44 89 f0 31 d2 bf 05 00 00 00 <f7> f3 41 89 c6 89 c6 e8 98 51 b0 fd 41 83 fe 05 0f 8e 4a 0b 00 00
RSP: 0018:ffffc90008a7f9f0 EFLAGS: 00010246
RAX: 0000000000008000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff83c356eb RDI: 0000000000000005
RBP: ffff8880a3ba0000 R08: ffff88809f6ea340 R09: fffffbfff1558fd9
R10: ffffffff8aac7ec7 R11: fffffbfff1558fd8 R12: ffff888095857000
R13: ffff8880a3b05000 R14: 0000000000008000 R15: ffffffff88989840
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004f2950 CR3: 00000000a63ca000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400