BUG: unable to handle kernel paging request at ffffffff0000000e IP: memset16 arch/x86/include/asm/string_64.h:58 [inline] IP: scr_memsetw include/linux/vt_buffer.h:36 [inline] IP: delete_char drivers/tty/vt/vt.c:547 [inline] IP: csi_P drivers/tty/vt/vt.c:1661 [inline] IP: do_con_trol+0x2ded/0x5450 drivers/tty/vt/vt.c:2035 PGD 7c6d067 P4D 7c6d067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 17856 Comm: syz-executor.4 Not tainted 4.14.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888063f4a640 task.stack: ffff8881b9fc0000 RIP: 0010:memset16 arch/x86/include/asm/string_64.h:58 [inline] RIP: 0010:scr_memsetw include/linux/vt_buffer.h:36 [inline] RIP: 0010:delete_char drivers/tty/vt/vt.c:547 [inline] RIP: 0010:csi_P drivers/tty/vt/vt.c:1661 [inline] RIP: 0010:do_con_trol+0x2ded/0x5450 drivers/tty/vt/vt.c:2035 RSP: 0018:ffff8881b9fc78d8 EFLAGS: 00010287 RAX: 0000000000000720 RBX: 1ffff110373f8f1e RCX: 0000000000000001 RDX: fffffffe00000000 RSI: 0000000100000010 RDI: ffffffff0000000e RBP: ffff8880929882c0 R08: 0000000000000001 R09: 0000000000000002 R10: ffff888063f4af90 R11: ffff888063f4a640 R12: ffff88809298864c R13: ffff8880929885f4 R14: 0000000000000002 R15: 000000010000000e FS: 00007f17cb5ac700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff0000000e CR3: 000000003b94a000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_con_write.part.0+0xc44/0x1a20 drivers/tty/vt/vt.c:2447 do_con_write drivers/tty/vt/vt.c:2218 [inline] con_write+0x33/0xc0 drivers/tty/vt/vt.c:2798 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x375/0xe30 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f0/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0xe4/0x630 fs/read_write.c:480 vfs_write+0x192/0x4e0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c829 RSP: 002b:00007f17cb5abc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000050c660 RCX: 000000000045c829 RDX: 0000000000000320 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000cea R14: 00000000004cf16f R15: 00007f17cb5ac6d4 Code: 22 26 00 00 8b 8d 8c 03 00 00 8b 95 34 03 00 00 0f b7 85 c8 03 00 00 48 29 ca 48 2b 54 24 08 44 89 f1 d1 e9 48 01 d2 49 8d 3c 17 66 ab 48 8d bd 78 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 RIP: memset16 arch/x86/include/asm/string_64.h:58 [inline] RSP: ffff8881b9fc78d8 RIP: scr_memsetw include/linux/vt_buffer.h:36 [inline] RSP: ffff8881b9fc78d8 RIP: delete_char drivers/tty/vt/vt.c:547 [inline] RSP: ffff8881b9fc78d8 RIP: csi_P drivers/tty/vt/vt.c:1661 [inline] RSP: ffff8881b9fc78d8 RIP: do_con_trol+0x2ded/0x5450 drivers/tty/vt/vt.c:2035 RSP: ffff8881b9fc78d8 CR2: ffffffff0000000e ---[ end trace fd4c3e1e7c200a52 ]---