BUG: unable to handle page fault for address: ffffffff0000000e
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 987c067 P4D 987c067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 22608 Comm: syz-executor.4 Not tainted 5.7.0-rc1-next-20200415-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:memset16 arch/x86/include/asm/string_64.h:25 [inline]
RIP: 0010:scr_memsetw include/linux/vt_buffer.h:36 [inline]
RIP: 0010:delete_char drivers/tty/vt/vt.c:853 [inline]
RIP: 0010:csi_P drivers/tty/vt/vt.c:2007 [inline]
RIP: 0010:do_con_trol+0x3b1/0x5d10 drivers/tty/vt/vt.c:2401
Code: cb 47 00 00 8b 8d dc 03 00 00 8b 95 84 03 00 00 0f b7 85 18 04 00 00 48 29 ca 48 2b 54 24 20 89 d9 d1 e9 48 01 d2 49 8d 3c 17 <f3> 66 ab 48 8d bd d0 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a
RSP: 0018:ffffc900057c7930 EFLAGS: 00010287
RAX: 0000000000000720 RBX: 0000000000000002 RCX: 0000000000000001
RDX: fffffffe00000000 RSI: 0000000100000010 RDI: ffffffff0000000e
RBP: ffff88808c24e000 R08: ffff8880a3f14400 R09: fffffbfff15169c1
R10: ffffffff8a8b4e07 R11: fffffbfff15169c0 R12: 1ffff92000af8f2c
R13: ffff88808c24e3dc R14: ffff88808c24e384 R15: 000000010000000e
FS:  00007fee73252700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff0000000e CR3: 000000008973a000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_con_write.part.0+0xf34/0x1dc0 drivers/tty/vt/vt.c:2817
 do_con_write drivers/tty/vt/vt.c:2587 [inline]
 con_write+0x41/0xe0 drivers/tty/vt/vt.c:3153
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x3f0/0xf90 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x495/0x800 drivers/tty/tty_io.c:1046
 __vfs_write+0x76/0x100 fs/read_write.c:495
 vfs_write+0x268/0x5d0 fs/read_write.c:559
 ksys_write+0x12d/0x250 fs/read_write.c:612
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: 0d b7 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fee73251c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000050c8c0 RCX: 000000000045ca29
RDX: 0000000000000040 RSI: 0000000020000600 RDI: 0000000000000003
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000cea R14: 00000000004cf36f R15: 00007fee732526d4
Modules linked in:
CR2: ffffffff0000000e
---[ end trace 996ce351b2fd9242 ]---
RIP: 0010:memset16 arch/x86/include/asm/string_64.h:25 [inline]
RIP: 0010:scr_memsetw include/linux/vt_buffer.h:36 [inline]
RIP: 0010:delete_char drivers/tty/vt/vt.c:853 [inline]
RIP: 0010:csi_P drivers/tty/vt/vt.c:2007 [inline]
RIP: 0010:do_con_trol+0x3b1/0x5d10 drivers/tty/vt/vt.c:2401
Code: cb 47 00 00 8b 8d dc 03 00 00 8b 95 84 03 00 00 0f b7 85 18 04 00 00 48 29 ca 48 2b 54 24 20 89 d9 d1 e9 48 01 d2 49 8d 3c 17 <f3> 66 ab 48 8d bd d0 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a
RSP: 0018:ffffc900057c7930 EFLAGS: 00010287
RAX: 0000000000000720 RBX: 0000000000000002 RCX: 0000000000000001
RDX: fffffffe00000000 RSI: 0000000100000010 RDI: ffffffff0000000e
RBP: ffff88808c24e000 R08: ffff8880a3f14400 R09: fffffbfff15169c1
R10: ffffffff8a8b4e07 R11: fffffbfff15169c0 R12: 1ffff92000af8f2c
R13: ffff88808c24e3dc R14: ffff88808c24e384 R15: 000000010000000e
FS:  00007fee73252700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff0000000e CR3: 000000008973a000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400