Kernel panic - not syncing: n_tty: init_tty
CPU: 1 PID: 21653 Comm: syz-executor0 Not tainted 4.16.0-rc7+ #281
netlink: 8 bytes leftover after parsing attributes in process `syz-executor5'.
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+0x194/0x24d lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
IPVS: stopping master sync thread 21684 ...
 tty_ldisc_init+0x69/0x70 drivers/tty/tty_ldisc.c:831
 alloc_tty_struct+0x18b/0xa20 drivers/tty/tty_io.c:2819
IPVS: sync thread started: state = MASTER, mcast_ifn = gre0, syncid = 0, id = 0
netlink: 8 bytes leftover after parsing attributes in process `syz-executor5'.
 tty_init_dev+0x78/0x4b0 drivers/tty/tty_io.c:1317
 ptmx_open+0xf3/0x310 drivers/tty/pty.c:832
 chrdev_open+0x257/0x730 fs/char_dev.c:417
IPVS: stopping master sync thread 21689 ...
 do_dentry_open+0x667/0xd40 fs/open.c:752
 vfs_open+0x107/0x220 fs/open.c:866
IPVS: sync thread started: state = MASTER, mcast_ifn = gre0, syncid = 0, id = 0
 do_last fs/namei.c:3379 [inline]
 path_openat+0x1151/0x3530 fs/namei.c:3519
x86/PAT: syz-executor7:21698 map pfn RAM range req write-combining for [mem 0x1ae450000-0x1ae453fff], got write-back
 do_filp_open+0x25b/0x3b0 fs/namei.c:3554
 do_sys_open+0x502/0x6d0 fs/open.c:1059
x86/PAT: syz-executor7:21698 map pfn RAM range req write-combining for [mem 0x1c64c0000-0x1c64c3fff], got write-back
 C_SYSC_openat fs/open.c:1105 [inline]
 compat_SyS_openat+0x2d/0x40 fs/open.c:1103
 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline]
 do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f47c99
RSP: 002b:00000000f774309c EFLAGS: 00000286 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020a61000
RDX: 0000000000000802 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..