BUG: unable to handle kernel paging request at ffff888001000180
IP: __writel arch/x86/include/asm/io.h:71 [inline]
IP: slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline]
IP: cfb_imageblit+0xa30/0xe40 drivers/video/fbdev/core/cfbimgblt.c:302
PGD c9cc067 P4D c9cc067 PUD c9cd067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 21558 Comm: syz-executor.0 Not tainted 4.14.231-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880b07f03c0 task.stack: ffff88803a508000
RIP: 0010:__writel arch/x86/include/asm/io.h:71 [inline]
RIP: 0010:slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline]
RIP: 0010:cfb_imageblit+0xa30/0xe40 drivers/video/fbdev/core/cfbimgblt.c:302
RSP: 0018:ffff88803a50f2a0 EFLAGS: 00010246
RAX: ffff888001000184 RBX: 000000000000001c RCX: ffffc90012da6000
RDX: 0000000000040000 RSI: ffff888001000180 RDI: dffffc0000000000
RBP: 0000000000000000 R08: ffff888238fc1caf R09: 0000000000000000
R10: ffff8880b07f0ce8 R11: 0000000000000000 R12: ffff888238fc1ca4
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f7c57652700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000180 CR3: 00000000ae87e000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1208 [inline]
 vga16fb_imageblit+0x630/0x2140 drivers/video/fbdev/vga16fb.c:1261
 soft_cursor+0x50a/0xa50 drivers/video/fbdev/core/softcursor.c:74
 bit_cursor+0xf7a/0x1580 drivers/video/fbdev/core/bitblit.c:377
 fbcon_cursor+0x48e/0x650 drivers/video/fbdev/core/fbcon.c:1290
 set_cursor drivers/tty/vt/vt.c:603 [inline]
 set_cursor+0x189/0x1e0 drivers/tty/vt/vt.c:594
 con_flush_chars drivers/tty/vt/vt.c:2885 [inline]
 con_flush_chars drivers/tty/vt/vt.c:2874 [inline]
 con_write+0x81/0xa0 drivers/tty/vt/vt.c:2806
 do_output_char+0x4f5/0x750 drivers/tty/n_tty.c:447
 process_output drivers/tty/n_tty.c:514 [inline]
 n_tty_write+0x3e3/0xda0 drivers/tty/n_tty.c:2345
 do_tty_write drivers/tty/tty_io.c:959 [inline]
 tty_write+0x410/0x740 drivers/tty/tty_io.c:1043
 __vfs_write+0xe4/0x630 fs/read_write.c:480
 __kernel_write+0xf5/0x330 fs/read_write.c:501
 write_pipe_buf+0x143/0x1c0 fs/splice.c:797
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x326/0x7a0 fs/splice.c:626
 splice_from_pipe fs/splice.c:661 [inline]
 default_file_splice_write+0xc5/0x150 fs/splice.c:809
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x115/0x160 fs/splice.c:1018
 splice_direct_to_actor+0x27c/0x730 fs/splice.c:973
 do_splice_direct+0x164/0x210 fs/splice.c:1061
 do_sendfile+0x47f/0xb30 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xff/0x110 fs/read_write.c:1488
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x466459
RSP: 002b:00007f7c57652188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000004
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0800000080004103 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffcbb87417f R14: 00007f7c57652300 R15: 0000000000022000
Code: 45 7c 24 20 e8 22 a5 1b fe 89 d9 44 89 f8 d3 e0 41 09 c5 39 5c 24 08 0f 87 76 ff ff ff e8 09 a5 1b fe 48 8b 74 24 10 48 8d 46 04 <44> 89 2e 39 5c 24 08 0f 85 44 ff ff ff 45 31 ed 48 89 44 24 10 
RIP: __writel arch/x86/include/asm/io.h:71 [inline] RSP: ffff88803a50f2a0
RIP: slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline] RSP: ffff88803a50f2a0
RIP: cfb_imageblit+0xa30/0xe40 drivers/video/fbdev/core/cfbimgblt.c:302 RSP: ffff88803a50f2a0
CR2: ffff888001000180
---[ end trace e111d041be9f9f04 ]---