IPVS: Creating netns size=2536 id=133
device lo entered promiscuous mode
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=26369 sclass=netlink_route_socket pig=5750 comm=syz-executor2
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5750 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x598/0x760 net/ipv4/af_inet.c:167
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 5750 Comm: syz-executor2 Not tainted 4.9.119-g92e8704 #74
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801db307cc0 ffffffff81eb4be9 ffffffff83c48980 00000000ffffffff
 0000000000000000 0000000000000001 00000000000000a7 ffff8801db307d80
 ffffffff81421c95 0000000041b58ab3 ffffffff843bc020 ffffffff81421ad6
Call Trace:
 <IRQ> 
 [<ffffffff81eb4be9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb4be9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81421c95>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff81421f81>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff8113683c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff83427758>] inet_sock_destruct+0x598/0x760 net/ipv4/af_inet.c:167
 [<ffffffff836c0ac9>] l2tp_tunnel_destruct+0x339/0x590 net/l2tp/l2tp_core.c:1329
 [<ffffffff830230f5>] __sk_destruct+0x55/0x590 net/core/sock.c:1428
 [<ffffffff812877ce>] __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 [<ffffffff812877ce>] rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 [<ffffffff812877ce>] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 [<ffffffff812877ce>] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 [<ffffffff812877ce>] rcu_process_callbacks+0x8ae/0x12b0 kernel/rcu/tree.c:3037
 [<ffffffff83a038bb>] __do_softirq+0x20b/0x937 kernel/softirq.c:284
 [<ffffffff8114b277>] invoke_softirq kernel/softirq.c:364 [inline]
 [<ffffffff8114b277>] irq_exit+0x147/0x190 kernel/softirq.c:405
 [<ffffffff83a024a1>] exiting_irq arch/x86/include/asm/apic.h:659 [inline]
 [<ffffffff83a024a1>] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:960
 [<ffffffff839fe630>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:648
 <EOI> 
 [<ffffffff839fd657>] retint_kernel+0x1b/0x2d
 [<ffffffff8125f608>] vprintk_emit+0x448/0x790 kernel/printk/printk.c:1903
 [<ffffffff8125f978>] vprintk+0x28/0x30 kernel/printk/printk.c:1913
 [<ffffffff8125f99d>] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1914
 [<ffffffff8142cdfc>] vprintk_func kernel/printk/internal.h:36 [inline]
 [<ffffffff8142cdfc>] printk+0xaf/0xd7 kernel/printk/printk.c:1975
 [<ffffffff81d7a611>] selinux_nlmsg_perm security/selinux/hooks.c:5012 [inline]
 [<ffffffff81d7a611>] selinux_netlink_send.cold.77+0x133/0x175 security/selinux/hooks.c:5356
 [<ffffffff81cf3f8b>] security_netlink_send+0x7b/0xb0 security/security.c:1182
 [<ffffffff831d3b14>] netlink_sendmsg+0x734/0xc30 net/netlink/af_netlink.c:1849
 [<ffffffff83018fcc>] sock_sendmsg_nosec net/socket.c:636 [inline]
 [<ffffffff83018fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:646
 [<ffffffff83019233>] sock_write_iter+0x223/0x3b0 net/socket.c:844
 [<ffffffff8156f060>] new_sync_write fs/read_write.c:496 [inline]
 [<ffffffff8156f060>] __vfs_write+0x3e0/0x580 fs/read_write.c:509
 [<ffffffff81572e57>] vfs_write+0x187/0x530 fs/read_write.c:557
 [<ffffffff81576c89>] SYSC_write fs/read_write.c:604 [inline]
 [<ffffffff81576c89>] SyS_write+0xd9/0x1c0 fs/read_write.c:596
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fccd3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..