BUG: unable to handle page fault for address: ffff888001000028
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD e201067 P4D e201067 PUD e202067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3596 Comm: syz-executor.3 Not tainted 5.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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+0x87a/0x1010 drivers/video/fbdev/core/cfbimgblt.c:302
Code: ff d3 e0 09 04 24 e8 55 44 8a fd 45 39 e7 0f 87 45 ff ff ff e8 67 48 8a fd 48 8b 44 24 10 8b 14 24 48 8d 70 04 48 89 74 24 10 <89> 10 44 89 e6 44 89 ff e8 29 44 8a fd 45 39 e7 0f 85 07 ff ff ff
RSP: 0018:ffffc900086cf1d0 EFLAGS: 00010246
RAX: ffff888001000028 RBX: 0000000000000000 RCX: ffffc9000ef04000
RDX: 0000000007777770 RSI: ffff88800100002c RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000000061c R09: 0000000000000000
R10: 000000000000001c R11: 0000000000000000 R12: 000000000000001c
R13: 0000000000000000 R14: ffff8882185c5aba R15: 000000000000001c
FS:  0000000000000000(0000) GS:ffff8880ae400000(0063) knlGS:00000000f559eb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffff888001000028 CR3: 00000000a73a2000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1207 [inline]
 vga16fb_imageblit+0x693/0x2210 drivers/video/fbdev/vga16fb.c:1260
 bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline]
 bit_putcs+0x6e1/0xd20 drivers/video/fbdev/core/bitblit.c:188
 fbcon_putcs+0x35a/0x450 drivers/video/fbdev/core/fbcon.c:1308
 con_flush drivers/tty/vt/vt.c:2575 [inline]
 do_con_write+0xb6b/0x1dd0 drivers/tty/vt/vt.c:2905
 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3250
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x3ce/0xf80 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x4d9/0x870 drivers/tty/tty_io.c:1046
 __kernel_write+0x199/0x570 fs/read_write.c:528
 write_pipe_buf+0x153/0x1f0 fs/splice.c:799
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x3dc/0x830 fs/splice.c:626
 splice_from_pipe fs/splice.c:661 [inline]
 default_file_splice_write fs/splice.c:811 [inline]
 do_splice_from fs/splice.c:847 [inline]
 direct_splice_actor+0x228/0x2f0 fs/splice.c:1016
 splice_direct_to_actor+0x38c/0x980 fs/splice.c:971
 do_splice_direct+0x1b3/0x280 fs/splice.c:1059
 do_sendfile+0x55f/0xd40 fs/read_write.c:1548
 __do_compat_sys_sendfile fs/read_write.c:1624 [inline]
 __se_compat_sys_sendfile fs/read_write.c:1613 [inline]
 __ia32_compat_sys_sendfile+0x159/0x220 fs/read_write.c:1613
 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
 __do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fa4549
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f559e0cc EFLAGS: 00000296 ORIG_RAX: 00000000000000bb
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000003
RDX: 0000000020000040 RSI: 000000000000a808 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: ffff888001000028
---[ end trace d950b2e820049b90 ]---
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+0x87a/0x1010 drivers/video/fbdev/core/cfbimgblt.c:302
Code: ff d3 e0 09 04 24 e8 55 44 8a fd 45 39 e7 0f 87 45 ff ff ff e8 67 48 8a fd 48 8b 44 24 10 8b 14 24 48 8d 70 04 48 89 74 24 10 <89> 10 44 89 e6 44 89 ff e8 29 44 8a fd 45 39 e7 0f 85 07 ff ff ff
RSP: 0018:ffffc900086cf1d0 EFLAGS: 00010246
RAX: ffff888001000028 RBX: 0000000000000000 RCX: ffffc9000ef04000
RDX: 0000000007777770 RSI: ffff88800100002c RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000000061c R09: 0000000000000000
R10: 000000000000001c R11: 0000000000000000 R12: 000000000000001c
R13: 0000000000000000 R14: ffff8882185c5aba R15: 000000000000001c
FS:  0000000000000000(0000) GS:ffff8880ae400000(0063) knlGS:00000000f559eb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffff888001000028 CR3: 00000000a73a2000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400