kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7660 Comm: kworker/0:4 Not tainted 4.19.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events console_callback
RIP: 0010:fbcon_cursor+0x10e/0x760 drivers/video/fbdev/core/fbcon.c:1350
Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e4 05 00 00 4c 8b b5 a0 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 66
RSP: 0018:ffff888055d9faf8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888219627580 RCX: ffffffff83aa9414
RDX: 000000001fffffee RSI: ffffffff837f5889 RDI: ffff8880960894e0
RBP: ffff888096089140 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a56a7680
R13: 0000000000000001 R14: 00000000ffffff70 R15: ffff8880a56a7ae8
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000400200 CR3: 00000001f678b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 set_cursor drivers/tty/vt/vt.c:915 [inline]
 set_cursor+0x1dd/0x230 drivers/tty/vt/vt.c:906
 redraw_screen+0x5ee/0x870 drivers/tty/vt/vt.c:1033
 complete_change_console+0xf9/0x610 drivers/tty/vt/vt_ioctl.c:1284
 change_console+0x196/0x560 drivers/tty/vt/vt_ioctl.c:1409
 console_callback+0x393/0x3f0 drivers/tty/vt/vt.c:2830
 process_one_work+0x864/0x1570 kernel/workqueue.c:2155
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298
 kthread+0x30b/0x410 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 888db3bb84564e28 ]---
RIP: 0010:fbcon_cursor+0x10e/0x760 drivers/video/fbdev/core/fbcon.c:1350
Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e4 05 00 00 4c 8b b5 a0 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 66
RSP: 0018:ffff888055d9faf8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888219627580 RCX: ffffffff83aa9414
RDX: 000000001fffffee RSI: ffffffff837f5889 RDI: ffff8880960894e0
RBP: ffff888096089140 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a56a7680
R13: 0000000000000001 R14: 00000000ffffff70 R15: ffff8880a56a7ae8
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000400200 CR3: 00000001f678b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400