BUG: unable to handle kernel paging request at ffff8880ffffca40
PGD de01067 P4D de01067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19356 Comm: syz-executor.2 Not tainted 4.19.200-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:writeb arch/x86/include/asm/io.h:65 [inline]
RIP: 0010:vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1168 [inline]
RIP: 0010:vga16fb_imageblit+0xa85/0x2260 drivers/video/fbdev/vga16fb.c:1260
Code: 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 67 c3 f9 fd 48 8b 04 24 48 8b 7c 24 10 8b 40 14 <88> 07 0f ae e8 8a 07 b8 05 00 00 00 ba ce 03 00 00 ee 48 c7 c2 10
RSP: 0018:ffff8880b44e7438 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000007 RCX: ffffc9000a152000
RDX: 0000000000000000 RSI: ffffffff839e8a7a RDI: ffff8880ffffca40
RBP: ffff8880b44e75cc R08: 00000000ffffff0a R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888238ce0588
R13: ffff888238ce55c0 R14: ffff8880b44e75e8 R15: 0000000000000001
FS:  00007f9fea0ab700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8880ffffca40 CR3: 0000000093dd0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline]
 bit_putcs+0x6e2/0xd10 drivers/video/fbdev/core/bitblit.c:188
 fbcon_putcs+0x336/0x4f0 drivers/video/fbdev/core/fbcon.c:1269
 fbcon_redraw_move.constprop.0+0x264/0x2b0 drivers/video/fbdev/core/fbcon.c:1548
 ypan_down_redraw drivers/video/fbdev/core/fbcon.c:1506 [inline]
 fbcon_scroll+0x2db4/0x3440 drivers/video/fbdev/core/fbcon.c:1836
 con_scroll+0x5f8/0x720 drivers/tty/vt/vt.c:637
 csi_L drivers/tty/vt/vt.c:2013 [inline]
 do_con_trol+0x36aa/0x5970 drivers/tty/vt/vt.c:2392
 do_con_write+0xbea/0x1d90 drivers/tty/vt/vt.c:2811
 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3146
 process_output_block drivers/tty/n_tty.c:593 [inline]
 n_tty_write+0x3c0/0xff0 drivers/tty/n_tty.c:2331
 do_tty_write drivers/tty/tty_io.c:960 [inline]
 tty_write+0x496/0x810 drivers/tty/tty_io.c:1044
 __vfs_write+0xf7/0x770 fs/read_write.c:485
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_write+0x12b/0x2a0 fs/read_write.c:599
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
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:00007f9fea0ab188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 00000000000001b7 RSI: 0000000020001040 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fff2ddebecf R14: 00007f9fea0ab300 R15: 0000000000022000
Modules linked in:
CR2: ffff8880ffffca40
---[ end trace f1db2c4292542315 ]---
RIP: 0010:writeb arch/x86/include/asm/io.h:65 [inline]
RIP: 0010:vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1168 [inline]
RIP: 0010:vga16fb_imageblit+0xa85/0x2260 drivers/video/fbdev/vga16fb.c:1260
Code: 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 67 c3 f9 fd 48 8b 04 24 48 8b 7c 24 10 8b 40 14 <88> 07 0f ae e8 8a 07 b8 05 00 00 00 ba ce 03 00 00 ee 48 c7 c2 10
RSP: 0018:ffff8880b44e7438 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000007 RCX: ffffc9000a152000
RDX: 0000000000000000 RSI: ffffffff839e8a7a RDI: ffff8880ffffca40
RBP: ffff8880b44e75cc R08: 00000000ffffff0a R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888238ce0588
R13: ffff888238ce55c0 R14: ffff8880b44e75e8 R15: 0000000000000001
FS:  00007f9fea0ab700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8880ffffca40 CR3: 0000000093dd0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400