BUG: unable to handle page fault for address: ffff888001000028
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD c801067 P4D c801067 PUD c802067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19936 Comm: syz-executor.2 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+0xb15/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:302
Code: 89 e6 89 e9 41 d3 e6 41 09 de 89 ef 8b 5c 24 28 89 de e8 0e e4 81 fd 39 dd 73 0a e8 65 e2 81 fd eb 42 0f 1f 00 48 8b 44 24 30 <44> 89 30 48 83 c0 04 48 89 44 24 30 89 ef 89 de e8 e6 e3 81 fd 39
RSP: 0018:ffffc9000c24f4b0 EFLAGS: 00010246
RAX: ffff888001000028 RBX: 000000000000001c RCX: 000000000000001c
RDX: ffff88803fe9e540 RSI: 000000000000001c RDI: 000000000000001c
RBP: 000000000000001c R08: ffffffff83f31b12 R09: ffffffff83f3127c
R10: 0000000000000002 R11: ffff88803fe9e540 R12: 0000000000000000
R13: ffff8880a3285d2a R14: 0000000000000000 R15: 0000000000000000
FS:  00007f1129bb1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000028 CR3: 000000009ed2d000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 soft_cursor+0xb44/0xdb0 drivers/video/fbdev/core/softcursor.c:74
 bit_cursor+0x1753/0x2110 drivers/video/fbdev/core/bitblit.c:377
 set_cursor drivers/tty/vt/vt.c:919 [inline]
 con_flush_chars+0x4e1/0x640 drivers/tty/vt/vt.c:3330
 con_write+0x2a/0x40 drivers/tty/vt/vt.c:3251
 do_output_char+0x63b/0x940 drivers/tty/n_tty.c:447
 process_output drivers/tty/n_tty.c:514 [inline]
 n_tty_write+0xd5c/0x1170 drivers/tty/n_tty.c:2345
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x593/0x940 drivers/tty/tty_io.c:1046
 __kernel_write+0x1ac/0xac0 fs/read_write.c:528
 write_pipe_buf+0xf9/0x150 fs/splice.c:799
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x351/0x8b0 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+0x1eb/0x2a0 fs/splice.c:1016
 splice_direct_to_actor+0x4a2/0xb60 fs/splice.c:971
 do_splice_direct+0x201/0x340 fs/splice.c:1059
 do_sendfile+0x86d/0x1210 fs/read_write.c:1548
 __do_sys_sendfile64 fs/read_write.c:1609 [inline]
 __se_sys_sendfile64 fs/read_write.c:1595 [inline]
 __x64_sys_sendfile64+0x164/0x1a0 fs/read_write.c:1595
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45dd99
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1129bb0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000027ec0 RCX: 000000000045dd99
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 0800000080004103 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007fff5ca2c8bf R14: 00007f1129bb19c0 R15: 000000000118bf2c
Modules linked in:
CR2: ffff888001000028
---[ end trace bf4d2e6045462443 ]---
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+0xb15/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:302
Code: 89 e6 89 e9 41 d3 e6 41 09 de 89 ef 8b 5c 24 28 89 de e8 0e e4 81 fd 39 dd 73 0a e8 65 e2 81 fd eb 42 0f 1f 00 48 8b 44 24 30 <44> 89 30 48 83 c0 04 48 89 44 24 30 89 ef 89 de e8 e6 e3 81 fd 39
RSP: 0018:ffffc9000c24f4b0 EFLAGS: 00010246
RAX: ffff888001000028 RBX: 000000000000001c RCX: 000000000000001c
RDX: ffff88803fe9e540 RSI: 000000000000001c RDI: 000000000000001c
RBP: 000000000000001c R08: ffffffff83f31b12 R09: ffffffff83f3127c
R10: 0000000000000002 R11: ffff88803fe9e540 R12: 0000000000000000
R13: ffff8880a3285d2a R14: 0000000000000000 R15: 0000000000000000
FS:  00007f1129bb1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000028 CR3: 000000009ed2d000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400