IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
BUG: unable to handle kernel paging request at ffff888001000000
IP: __writel arch/x86/include/asm/io.h:71 [inline]
IP: slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline]
IP: cfb_imageblit+0x741/0xec0 drivers/video/fbdev/core/cfbimgblt.c:302
PGD a548067 P4D a548067 PUD a549067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7403 Comm: syz-executor.5 Not tainted 4.14.227-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8881d38d2540 task.stack: ffff8881d3f20000
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+0x741/0xec0 drivers/video/fbdev/core/cfbimgblt.c:302
RSP: 0018:ffff8881d3f27038 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000001c RCX: 000000000000001c
RDX: ffff888001000000 RSI: 0000000000000007 RDI: ffff888001000004
RBP: ffff8881d3f270f0 R08: dffffc0000000000 R09: 0000000000000004
R10: 0000000000000000 R11: 000000000000001c R12: 0000000000000000
R13: ffff8881ef3716b0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fd590286700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000000 CR3: 00000001d78d5003 CR4: 00000000001606e0
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+0x620/0x2380 drivers/video/fbdev/vga16fb.c:1261
 bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline]
 bit_putcs+0x872/0xca0 drivers/video/fbdev/core/bitblit.c:188
 fbcon_putcs+0x302/0x5f0 drivers/video/fbdev/core/fbcon.c:1247
 con_flush drivers/tty/vt/vt.c:2206 [inline]
 do_con_write.part.13+0x690/0x19b0 drivers/tty/vt/vt.c:2410
 do_con_write drivers/tty/vt/vt.c:2225 [inline]
 con_write+0x1f/0x80 drivers/tty/vt/vt.c:2805
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x498/0x1030 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:959 [inline]
 tty_write+0x342/0x770 drivers/tty/tty_io.c:1043
 __vfs_write+0xdb/0x840 fs/read_write.c:480
 __kernel_write+0xe4/0x360 fs/read_write.c:501
 write_pipe_buf+0x14c/0x1e0 fs/splice.c:797
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x2cb/0x720 fs/splice.c:626
 splice_from_pipe+0xb5/0x110 fs/splice.c:661
 default_file_splice_write+0x18/0x50 fs/splice.c:809
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x104/0x1c0 fs/splice.c:1018
 splice_direct_to_actor+0x27c/0x750 fs/splice.c:973
 do_splice_direct+0x144/0x250 fs/splice.c:1061
 do_sendfile+0x46c/0xcf0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xf5/0x110 fs/read_write.c:1488
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x465849
RSP: 002b:00007fd590286188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465849
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000
R10: 0800000080004103 R11: 0000000000000246 R12: 000000000055bfa8
R13: 00007ffddc75f69f R14: 00007fd590286300 R15: 0000000000022000
Code: c0 0f 85 91 03 00 00 41 0f b6 45 00 44 89 e1 d3 f8 89 d9 a8 01 44 89 d0 0f 45 c6 89 c7 d3 e7 41 09 ff 41 39 db 77 1f 48 8d 7a 04 <44> 89 3a 41 39 db 0f 84 51 02 00 00 b9 20 00 00 00 48 89 fa 29 
RIP: __writel arch/x86/include/asm/io.h:71 [inline] RSP: ffff8881d3f27038
RIP: slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline] RSP: ffff8881d3f27038
RIP: cfb_imageblit+0x741/0xec0 drivers/video/fbdev/core/cfbimgblt.c:302 RSP: ffff8881d3f27038
CR2: ffff888001000000
---[ end trace bfb056f275c98c51 ]---