panic: runtime error: integer divide by zero

goroutine 356115 [running]:
panic(0xedf820, 0x19f1840)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc001121330 sp=0xc001121278 pc=0x43438d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc001121350 sp=0xc001121330 pc=0x432afb
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc00013af50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x299 fp=0xc0011213f0 sp=0xc001121350 pc=0x7bca79
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc00013af50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xa4 fp=0xc0011214d8 sp=0xc0011213f0 pc=0x7bacf4
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc00013af50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x20, 0xf49f40, ...)
	pkg/tcpip/stack/conntrack.go:621 +0xe6 fp=0xc001121570 sp=0xc0011214d8 pc=0x7bd416
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc004b6c000, 0xe61c60, 0xc002407cc0, 0xc0018b26a0)
	pkg/tcpip/transport/tcp/endpoint.go:2017 +0x111 fp=0xc001121670 sp=0xc001121570 pc=0x99fec1
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc004b6a000, 0x7f47e1c56be8, 0xc004b6c000, 0x50, 0x1000, 0x2, 0xc0011217a0, 0x40a605, 0xf48a40)
	pkg/sentry/socket/netstack/netstack.go:1619 +0xa32 fp=0xc001121740 sp=0xc001121670 pc=0x9e4a72
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc004b6a000, 0x1211c20, 0xc004d22100, 0x7f47e1c56be8, 0xc004b6c000, 0x2, 0x1, 0x0, 0x50, 0x1000, ...)
	pkg/sentry/socket/netstack/netstack.go:1004 +0x163 fp=0xc0011217b0 sp=0xc001121740 pc=0x9e04f3
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc004d22100, 0xc004b6a000, 0x0, 0x50, 0x20001280, 0x1000, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:987 +0x918 fp=0xc0011219c8 sp=0xc0011217b0 pc=0x9e02f8
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc004b6a000, 0x7f47e1c56ad0, 0xc004d22100, 0x0, 0x50, 0x20001280, 0x1000, 0xc004b6a93c, 0x10, 0x90)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xae fp=0xc001121a38 sp=0xc0011219c8 pc=0x9303ae
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc004b6a000, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x218 fp=0xc001121b08 sp=0xc001121a38 pc=0x92fea8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004b6a000, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x103e180, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x122 fp=0xc001121c68 sp=0xc001121b08 pc=0x8bfa82
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004b6a000, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x20000040, 0x0)
	pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc001121cf0 sp=0xc001121c68 pc=0x8c0c66
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc004b6a000, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x11ded01, 0x100000000000000)
	pkg/sentry/kernel/task_syscall.go:198 +0x96 fp=0xc001121d50 sp=0xc001121cf0 pc=0x8c07f6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004b6a000, 0x2, 0xc004b6a000)
	pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc001121e10 sp=0xc001121d50 pc=0x8c018c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc004b6a000, 0x11ded40, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0xc18 fp=0xc001121f60 sp=0xc001121e10 pc=0x8b4b58
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004b6a000, 0x2cbf)
	pkg/sentry/kernel/task_run.go:93 +0x18b fp=0xc001121fd0 sp=0xc001121f60 pc=0x8b382b
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc001121fd8 sp=0xc001121fd0 pc=0x467d61
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0xfe