BUG: unable to handle kernel paging request at ffff88800100000a
IP: writeb arch/x86/include/asm/io.h:65 [inline]
IP: vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1177 [inline]
IP: vga16fb_imageblit+0xb68/0x2140 drivers/video/fbdev/vga16fb.c:1261
PGD c9c5067 P4D c9c5067 PUD c9c6067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 16401 Comm: syz-executor.1 Not tainted 4.14.212-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880903d25c0 task.stack: ffff888049b68000
RIP: 0010:writeb arch/x86/include/asm/io.h:65 [inline]
RIP: 0010:vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1177 [inline]
RIP: 0010:vga16fb_imageblit+0xb68/0x2140 drivers/video/fbdev/vga16fb.c:1261
RSP: 0018:ffff888049b6f288 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888001000018 RCX: 0000000000000006
RDX: ffff88800100000a RSI: ffffffff8345cb07 RDI: ffff8880b0a8e00e
RBP: dffffc0000000000 R08: 00000000000013ae R09: 0000000000000010
R10: 000000000000000e R11: 0000000000000000 R12: ffff8880b0a8e00f
R13: ffff888049b6f420 R14: ffff88800100000b R15: ffff88800100000a
FS:  00007f1b0ecf4700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88800100000a CR3: 00000000988e4000 CR4: 00000000001406f0
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+0x81e/0xc30 drivers/video/fbdev/core/bitblit.c:188
 fbcon_putcs+0x2fe/0x480 drivers/video/fbdev/core/fbcon.c:1247
 con_flush drivers/tty/vt/vt.c:2206 [inline]
 do_con_write+0x908/0x19b0 drivers/tty/vt/vt.c:2410
 con_write+0x21/0xa0 drivers/tty/vt/vt.c:2805
 n_tty_write+0x85e/0xda0 drivers/tty/n_tty.c:2356
 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: 0033:0x45e149
RSP: 002b:00007f1b0ecf3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e149
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 000000000119c118 R08: 0000000000000000 R09: 0000000000000000
R10: 0800000080004103 R11: 0000000000000246 R12: 000000000119c0dc
R13: 00007ffc0e14e1af R14: 00007f1b0ecf49c0 R15: 000000000119c0dc
Code: 49 83 c4 01 48 89 f8 48 89 f9 49 83 c6 01 48 c1 e8 03 83 e1 07 0f b6 04 28 38 c8 7f 08 84 c0 0f 85 0f 0f 00 00 41 0f b6 44 24 ff <88> 02 49 39 de 75 c3 48 8b 74 24 18 48 01 74 24 08 e8 f2 73 11 
RIP: writeb arch/x86/include/asm/io.h:65 [inline] RSP: ffff888049b6f288
RIP: vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1177 [inline] RSP: ffff888049b6f288
RIP: vga16fb_imageblit+0xb68/0x2140 drivers/video/fbdev/vga16fb.c:1261 RSP: ffff888049b6f288
CR2: ffff88800100000a
---[ end trace b1c17be099dc9122 ]---