BUG: unable to handle page fault for address: ffff8880010002a0
#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: 0 PID: 20636 Comm: syz-executor.5 Not tainted 5.9.0-rc8-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:fast_imageblit drivers/video/fbdev/core/cfbimgblt.c:257 [inline]
RIP: 0010:cfb_imageblit+0xe5f/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:300
Code: d3 f8 23 44 24 30 48 8b 4c 24 48 4c 8d 3c 81 4c 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 54 41 8b 07 23 44 24 18 33 44 24 10 <41> 89 45 00 31 ff 89 ee e8 a4 d2 81 fd 85 ed b8 08 00 00 00 0f 44
RSP: 0018:ffffc90008c3f1f8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8882189f07d6 RCX: ffffffff88be05c0
RDX: ffffc900135f3000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000004 R08: ffffffff83f32f5c R09: ffffffff83f3235c
R10: 0000000000000002 R11: ffff88804b6061c0 R12: 0000000000000001
R13: ffff8880010002a0 R14: dffffc0000000000 R15: ffffffff88be05c0
FS:  00007f938fd36700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8880010002a0 CR3: 000000004fcc4000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bit_putcs+0x17ac/0x1bf0 drivers/video/fbdev/core/bitblit.c:105
 fbcon_putcs+0x790/0xaf0 drivers/video/fbdev/core/fbcon.c:1308
 con_flush drivers/tty/vt/vt.c:2575 [inline]
 do_con_write+0x2853/0xd580 drivers/tty/vt/vt.c:2905
 con_write+0x20/0x40 drivers/tty/vt/vt.c:3250
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0xcbf/0x1170 drivers/tty/n_tty.c:2333
 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:819
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x351/0x8b0 fs/splice.c:646
 splice_from_pipe fs/splice.c:681 [inline]
 default_file_splice_write fs/splice.c:831 [inline]
 do_splice_from fs/splice.c:867 [inline]
 direct_splice_actor+0x1eb/0x2a0 fs/splice.c:1036
 splice_direct_to_actor+0x4a2/0xb60 fs/splice.c:991
 do_splice_direct+0x201/0x340 fs/splice.c:1079
 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: 0033:0x45de59
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:00007f938fd35c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000027ec0 RCX: 000000000045de59
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000a808 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffd88d0994f R14: 00007f938fd369c0 R15: 000000000118bf2c
Modules linked in:
CR2: ffff8880010002a0
---[ end trace a38eaa1781155877 ]---
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+0xe5f/0x11e0 drivers/video/fbdev/core/cfbimgblt.c:300
Code: d3 f8 23 44 24 30 48 8b 4c 24 48 4c 8d 3c 81 4c 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 54 41 8b 07 23 44 24 18 33 44 24 10 <41> 89 45 00 31 ff 89 ee e8 a4 d2 81 fd 85 ed b8 08 00 00 00 0f 44
RSP: 0018:ffffc90008c3f1f8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8882189f07d6 RCX: ffffffff88be05c0
RDX: ffffc900135f3000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000004 R08: ffffffff83f32f5c R09: ffffffff83f3235c
R10: 0000000000000002 R11: ffff88804b6061c0 R12: 0000000000000001
R13: ffff8880010002a0 R14: dffffc0000000000 R15: ffffffff88be05c0
FS:  00007f938fd36700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8880010002a0 CR3: 000000004fcc4000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400