BUG: unable to handle page fault for address: ffff888001000030
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD 11201067 P4D 11201067 PUD 11202067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10917 Comm: syz-executor.5 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline]
RIP: 0010:bitfill_aligned+0x1d2/0x270 drivers/video/fbdev/core/cfbfillrect.c:75
Code: 1c 1b fd eb 09 e8 1e 1c 1b fd 48 83 c3 40 31 ff 89 ee e8 21 20 1b fd 85 ed 74 2c 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 ff cd <4c> 89 33 85 ed 74 0b 48 83 c3 08 e8 ee 1b 1b fd eb ec e8 e7 1b 1b
RSP: 0018:ffffc90003b974f8 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff888001000030 RCX: 0000000000040000
RDX: ffff88802382ba00 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff84697d5f R09: 0000000000000040
R10: 0000000000000002 R11: ffff88802382ba00 R12: ffffffffffffffff
R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f4e74c5c700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000030 CR3: 000000008cd20000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 cfb_fillrect+0x5d8/0x800 drivers/video/fbdev/core/cfbfillrect.c:327
 bit_clear_margins+0x2d7/0x6e0 drivers/video/fbdev/core/bitblit.c:209
 fbcon_clear_margins drivers/video/fbdev/core/fbcon.c:1296 [inline]
 fbcon_switch+0x1569/0x21f0 drivers/video/fbdev/core/fbcon.c:1677
 redraw_screen+0x53d/0x1280 drivers/tty/vt/vt.c:1021
 vc_do_resize+0x1361/0x1930 drivers/tty/vt/vt.c:1342
 fbcon_modechanged+0x7b6/0x1240 drivers/video/fbdev/core/fbcon.c:2171
 do_fb_ioctl+0x7f2/0x900 drivers/video/fbdev/core/fbmem.c:1114
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4e762e6e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4e74c5c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4e763f9f60 RCX: 00007f4e762e6e99
RDX: 0000000020000080 RSI: 0000000000004601 RDI: 0000000000000003
RBP: 00007f4e76341031 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe038e719f R14: 00007f4e74c5c300 R15: 0000000000022000
 </TASK>
Modules linked in:
CR2: ffff888001000030
---[ end trace 3e0ef170b30d91ca ]---
RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline]
RIP: 0010:bitfill_aligned+0x1d2/0x270 drivers/video/fbdev/core/cfbfillrect.c:75
Code: 1c 1b fd eb 09 e8 1e 1c 1b fd 48 83 c3 40 31 ff 89 ee e8 21 20 1b fd 85 ed 74 2c 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 ff cd <4c> 89 33 85 ed 74 0b 48 83 c3 08 e8 ee 1b 1b fd eb ec e8 e7 1b 1b
RSP: 0018:ffffc90003b974f8 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff888001000030 RCX: 0000000000040000
RDX: ffff88802382ba00 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff84697d5f R09: 0000000000000040
R10: 0000000000000002 R11: ffff88802382ba00 R12: ffffffffffffffff
R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f4e74c5c700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000030 CR3: 000000008cd20000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
   0:	1c 1b                	sbb    $0x1b,%al
   2:	fd                   	std
   3:	eb 09                	jmp    0xe
   5:	e8 1e 1c 1b fd       	callq  0xfd1b1c28
   a:	48 83 c3 40          	add    $0x40,%rbx
   e:	31 ff                	xor    %edi,%edi
  10:	89 ee                	mov    %ebp,%esi
  12:	e8 21 20 1b fd       	callq  0xfd1b2038
  17:	85 ed                	test   %ebp,%ebp
  19:	74 2c                	je     0x47
  1b:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
  22:	00 00 00
  25:	0f 1f 00             	nopl   (%rax)
  28:	ff cd                	dec    %ebp
* 2a:	4c 89 33             	mov    %r14,(%rbx) <-- trapping instruction
  2d:	85 ed                	test   %ebp,%ebp
  2f:	74 0b                	je     0x3c
  31:	48 83 c3 08          	add    $0x8,%rbx
  35:	e8 ee 1b 1b fd       	callq  0xfd1b1c28
  3a:	eb ec                	jmp    0x28
  3c:	e8                   	.byte 0xe8
  3d:	e7 1b                	out    %eax,$0x1b
  3f:	1b                   	.byte 0x1b