console_callback+0x106/0x330 drivers/tty/vt/vt.c:2850
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293
Modules linked in:
general protection fault, probably for non-canonical address 0xdffffc0020000001: 0000 [#2] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000000100000008-0x000000010000000f]
CPU: 0 PID: 27256 Comm: kworker/0:6 Not tainted 5.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events console_callback
RIP: 0010:fbcon_cursor+0xcd/0xc00 drivers/video/fbdev/core/fbcon.c:1389
Code: 7d 00 49 8d ae f0 03 00 00 48 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 ef e8 4e e1 e4 fd 48 8b 6d 00 48 89 e8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 e7 07 00 00 0f b7 45 00 89 44 24 1c 4c 89
RSP: 0018:ffffc90016a276a8 EFLAGS: 00010003
RAX: 0000000020000001 RBX: 1ffff11043126694 RCX: ffff88808c1de380
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808bdf7000
RBP: 000000010000000e R08: ffffffff83d0170a R09: fffffbfff12da58d
R10: fffffbfff12da58d R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8882189334a0 R14: ffff88808bdf7000 R15: ffff888218948000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f839d565710 CR3: 000000009141c000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000004000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fbcon_blank+0x324/0x930 drivers/video/fbdev/core/fbcon.c:2416
 do_unblank_screen+0x29f/0xb00 drivers/tty/vt/vt.c:4310
 bust_spinlocks+0x43/0xd0 lib/bust_spinlocks.c:26
 oops_end+0x33/0xf0 arch/x86/kernel/dumpstack.c:337
 do_trap_no_signal arch/x86/kernel/traps.c:119 [inline]
 do_trap+0x1e7/0x340 arch/x86/kernel/traps.c:157
 do_error_trap+0x11b/0x190 arch/x86/kernel/traps.c:177
 __exc_divide_error arch/x86/kernel/traps.c:199 [inline]
 exc_divide_error+0x3a/0x50 arch/x86/kernel/traps.c:197
 asm_exc_divide_error+0x12/0x20 arch/x86/include/asm/idtentry.h:543
RIP: 0010:fbcon_update_softback drivers/video/fbdev/core/fbcon.c:378 [inline]
RIP: 0010:fbcon_switch+0x16c/0x1e40 drivers/video/fbdev/core/fbcon.c:2256
Code: 00 44 8b 35 12 75 76 05 49 8d 9f 8c 03 00 00 48 89 d8 48 c1 e8 03 42 8a 04 28 84 c0 0f 85 64 18 00 00 44 8b 3b 44 89 f0 31 d2 <41> f7 f7 89 c3 bf 05 00 00 00 89 c6 e8 23 88 a4 fd 83 fb 06 7c 15
RSP: 0018:ffffc90016a27a70 EFLAGS: 00010246
RAX: 0000000000008000 RBX: ffff88808bdf738c RCX: ffff88808c1de380
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880a3480000 R08: ffffffff83cff6b9 R09: fffffbfff12da58d
R10: fffffbfff12da58d R11: 0000000000000000 R12: ffff88808bdf7380
R13: dffffc0000000000 R14: 0000000000008000 R15: 0000000000000000
 redraw_screen+0x4fc/0x16f0 drivers/tty/vt/vt.c:1015
 complete_change_console+0xb1/0x720 drivers/tty/vt/vt_ioctl.c:1274
 console_callback+0x106/0x330 drivers/tty/vt/vt.c:2850
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293
Modules linked in:
---[ end trace dc78ebdab7f410cb ]---
RIP: 0010:fbcon_update_softback drivers/video/fbdev/core/fbcon.c:378 [inline]
RIP: 0010:fbcon_switch+0x16c/0x1e40 drivers/video/fbdev/core/fbcon.c:2256
Code: 00 44 8b 35 12 75 76 05 49 8d 9f 8c 03 00 00 48 89 d8 48 c1 e8 03 42 8a 04 28 84 c0 0f 85 64 18 00 00 44 8b 3b 44 89 f0 31 d2 <41> f7 f7 89 c3 bf 05 00 00 00 89 c6 e8 23 88 a4 fd 83 fb 06 7c 15
RSP: 0018:ffffc90016a27a70 EFLAGS: 00010246
RAX: 0000000000008000 RBX: ffff88808bdf738c RCX: ffff88808c1de380
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880a3480000 R08: ffffffff83cff6b9 R09: fffffbfff12da58d
R10: fffffbfff12da58d R11: 0000000000000000 R12: ffff88808bdf7380
R13: dffffc0000000000 R14: 0000000000008000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f839d565710 CR3: 000000009141c000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000004000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400