EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
BUG: unable to handle kernel paging request at ffff888001000000
IP: __writel arch/x86/include/asm/io.h:71 [inline]
IP: fast_imageblit drivers/video/fbdev/core/cfbimgblt.c:257 [inline]
IP: cfb_imageblit+0x847/0xe40 drivers/video/fbdev/core/cfbimgblt.c:300
PGD c9c6067 P4D c9c6067 PUD c9c7067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7916 Comm: agetty Not tainted 4.14.226-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880b5046680 task.stack: ffff888096940000
RIP: 0010:__writel arch/x86/include/asm/io.h:71 [inline]
RIP: 0010:fast_imageblit drivers/video/fbdev/core/cfbimgblt.c:257 [inline]
RIP: 0010:cfb_imageblit+0x847/0xe40 drivers/video/fbdev/core/cfbimgblt.c:300
RSP: 0018:ffff8880969476e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88823885cd20 RCX: 0000000000000004
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffff888001000004 R08: ffff88823885cd2f R09: 0000000000000000
R10: ffff8880b5046f80 R11: 0000000000000010 R12: dffffc0000000000
R13: 0000000000000004 R14: 0000000000000004 R15: ffff888001000000
FS:  00007f68dac11500(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000000 CR3: 00000000abe2f000 CR4: 00000000001426e0
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+0x480/0x640 drivers/video/fbdev/core/fbcon.c:1287
 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_echoes+0x313/0x8c0 drivers/tty/n_tty.c:739
 flush_echoes drivers/tty/n_tty.c:829 [inline]
 __receive_buf drivers/tty/n_tty.c:1648 [inline]
 n_tty_receive_buf_common+0x9a3/0x25a0 drivers/tty/n_tty.c:1742
 tiocsti drivers/tty/tty_io.c:2186 [inline]
 tty_ioctl+0xe5a/0x13c0 drivers/tty/tty_io.c:2572
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f68da734017
RSP: 002b:00007ffe1ba3ccb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe1ba3ce81 RCX: 00007f68da734017
RDX: 00007ffe1ba3ce80 RSI: 0000000000005412 RDI: 0000000000000000
RBP: 00007ffe1ba3ce97 R08: ffffffffffffff98 R09: 00007ffe1ba3cd30
R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe1ba3ccd4
R13: 00007ffe1ba3ce30 R14: 00007ffe1ba3cd30 R15: 0000000000000000
Code: 0f b6 3c 26 48 89 c6 83 e6 07 83 c6 03 40 38 fe 7c 09 40 84 ff 0f 85 8f 05 00 00 8b 7c 24 20 49 8d 6f 04 23 38 8b 44 24 10 31 f8 <41> 89 07 45 85 f6 75 0f e8 7c c7 1c fe 48 83 c3 01 41 be 08 00 
RIP: __writel arch/x86/include/asm/io.h:71 [inline] RSP: ffff8880969476e0
RIP: fast_imageblit drivers/video/fbdev/core/cfbimgblt.c:257 [inline] RSP: ffff8880969476e0
RIP: cfb_imageblit+0x847/0xe40 drivers/video/fbdev/core/cfbimgblt.c:300 RSP: ffff8880969476e0
CR2: ffff888001000000
---[ end trace 18198eea9e4c6dd8 ]---