overlayfs: filesystem on './file0' not supported as upperdir
FAT-fs (loop5): Directory bread(block 6) failed
BUG: unable to handle kernel paging request at ffff888001000220
IP: __writel arch/x86/include/asm/io.h:71 [inline]
IP: fast_imageblit drivers/video/fbdev/core/cfbimgblt.c:257 [inline]
IP: cfb_imageblit+0x847/0xe40 drivers/video/fbdev/core/cfbimgblt.c:300
PGD c9c5067 P4D c9c5067 PUD c9c6067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 14958 Comm: syz-executor.5 Not tainted 4.14.210-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809c266300 task.stack: ffff88806b668000
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+0x847/0xe40 drivers/video/fbdev/core/cfbimgblt.c:300
RSP: 0018:ffff88806b66f1c8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8882388345d6 RCX: 0000000000000004
RDX: 0000000000040000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffff888001000224 R08: 0000000000000b3f R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000007 R12: dffffc0000000000
R13: 0000000000000004 R14: 0000000000000004 R15: ffff888001000220
FS:  00007fefade73700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000220 CR3: 00000000a8846000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1208 [inline]
 vga16fb_imageblit+0x630/0x2140 drivers/video/fbdev/vga16fb.c:1261
 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
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x352/0xda0 drivers/tty/n_tty.c:2333
 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: 0033:0x45deb9
RSP: 002b:00007fefade72c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000028040 RCX: 000000000045deb9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000119bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 0800000080004103 R11: 0000000000000246 R12: 000000000119bf2c
R13: 00007ffd0e51e72f R14: 00007fefade739c0 R15: 000000000119bf2c
Code: 0f b6 3c 26 48 89 c6 83 e6 07 83 c6 03 40 38 fe 7c 09 40 84 ff 0f 85 8f 05 00 00 8b 7c 24 20 49 8d 6f 04 23 38 8b 44 24 10 31 f8 <41> 89 07 45 85 f6 75 0f e8 3c 28 15 fe 48 83 c3 01 41 be 08 00 
RIP: __writel arch/x86/include/asm/io.h:71 [inline] RSP: ffff88806b66f1c8
RIP: fast_imageblit drivers/video/fbdev/core/cfbimgblt.c:257 [inline] RSP: ffff88806b66f1c8
RIP: cfb_imageblit+0x847/0xe40 drivers/video/fbdev/core/cfbimgblt.c:300 RSP: ffff88806b66f1c8
CR2: ffff888001000220
---[ end trace 3ddd146010d32b58 ]---