RAX: ffffffffffffffda RBX: 00007fb7b5c056d4 RCX: 0000000000455279 RDX: 0000000000000000 RSI: 00000000201f0000 RDI: ffffffffffffff9c RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 0000000000000436 R14: 00000000006f95b0 R15: 0000000000000005 Kernel panic - not syncing: n_tty: init_tty CPU: 1 PID: 8121 Comm: syz-executor5 Not tainted 4.16.0+ #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 panic+0x22f/0x4de kernel/panic.c:183 tty_ldisc_init.cold.6+0x16/0x16 drivers/tty/tty_ldisc.c:831 alloc_tty_struct+0x1a8/0xa50 drivers/tty/tty_io.c:2819 tty_init_dev+0x7d/0x460 drivers/tty/tty_io.c:1317 ptmx_open+0x12a/0x360 drivers/tty/pty.c:832 chrdev_open+0x256/0x760 fs/char_dev.c:417 do_dentry_open+0x7ef/0xf10 fs/open.c:784 vfs_open+0x139/0x230 fs/open.c:906 do_last fs/namei.c:3365 [inline] path_openat+0x1676/0x4e20 fs/namei.c:3501 do_filp_open+0x249/0x350 fs/namei.c:3535 do_sys_open+0x59a/0x770 fs/open.c:1093 SYSC_openat fs/open.c:1120 [inline] SyS_openat+0x30/0x40 fs/open.c:1114 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x455279 RSP: 002b:00007fb7b5c04c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb7b5c056d4 RCX: 0000000000455279 RDX: 0000000000000000 RSI: 00000000201f0000 RDI: ffffffffffffff9c RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 0000000000000436 R14: 00000000006f95b0 R15: 0000000000000005 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..