RDX: 0000004000105003 RSI: 00000000200e1000 RDI: ffffffffffffff9c
RBP: 00007f0be191ca90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b767a
R13: 00007f0be191cbc8 R14: 00000000004b767a R15: 0000000000000000
Kernel panic - not syncing: n_tty: init_tty
CPU: 1 PID: 20788 Comm: syz-executor2 Not tainted 4.15.0-rc6-next-20180105+ #89
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x137/0x198 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 tty_ldisc_init+0x69/0x70 drivers/tty/tty_ldisc.c:831
 alloc_tty_struct+0x10c/0x870 drivers/tty/tty_io.c:2804
 tty_init_dev+0x78/0x4a0 drivers/tty/tty_io.c:1308
 ptmx_open+0xf3/0x310 drivers/tty/pty.c:832
 chrdev_open+0x227/0x610 fs/char_dev.c:417
 do_dentry_open+0x667/0xd40 fs/open.c:752
 vfs_open+0x107/0x220 fs/open.c:866
 do_last fs/namei.c:3397 [inline]
 path_openat+0x5a5/0x26e0 fs/namei.c:3537
 do_filp_open+0x19d/0x290 fs/namei.c:3572
 do_sys_open+0x336/0x4b0 fs/open.c:1059
 SYSC_openat fs/open.c:1086 [inline]
 SyS_openat+0x30/0x40 fs/open.c:1080
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f0be191cc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0be191caa0 RCX: 0000000000452ac9
RDX: 0000004000105003 RSI: 00000000200e1000 RDI: ffffffffffffff9c
RBP: 00007f0be191ca90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b767a
R13: 00007f0be191cbc8 R14: 00000000004b767a R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..