panic: runtime error: integer divide by zero

goroutine 500 [running]:
panic(0xec12c0, 0x19bd780)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc000175350 sp=0xc000175298 pc=0x43438d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc000175370 sp=0xc000175350 pc=0x432afb
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc000362f50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:509 +0x299 fp=0xc000175410 sp=0xc000175370 pc=0x7b5289
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc000362f50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xa4 fp=0xc0001754f8 sp=0xc000175410 pc=0x7b34e4
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc000362f50, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x20, 0xf2ae00, ...)
	pkg/tcpip/stack/conntrack.go:622 +0xe6 fp=0xc000175590 sp=0xc0001754f8 pc=0x7b5c26
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc000272580, 0xe44320, 0xc0002b0ba0, 0xc00070b2c0)
	pkg/tcpip/transport/tcp/endpoint.go:2022 +0x111 fp=0xc000175690 sp=0xc000175590 pc=0x9934d1
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc00084aa80, 0x7f3533a0b858, 0xc000272580, 0x50, 0x31313131, 0x2, 0xc0001757c0, 0x40a605, 0xf29900)
	pkg/sentry/socket/netstack/netstack.go:1613 +0xa32 fp=0xc000175760 sp=0xc000175690 pc=0x9d6272
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc00084aa80, 0x11eba20, 0xc000258100, 0x7f3533a0b858, 0xc000272580, 0x2, 0x1, 0x0, 0x50, 0x31313131, ...)
	pkg/sentry/socket/netstack/netstack.go:998 +0x163 fp=0xc0001757d0 sp=0xc000175760 pc=0x9d1cf3
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc000258100, 0xc00084aa80, 0x0, 0x50, 0x0, 0x31313131, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:981 +0x8a8 fp=0xc0001759e8 sp=0xc0001757d0 pc=0x9d1af8
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc00084aa80, 0x7f3533a0b740, 0xc000258100, 0x0, 0x50, 0x0, 0x31313131, 0xc0001dd400, 0x340, 0xc000175ae0)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xae fp=0xc000175a58 sp=0xc0001759e8 pc=0x92524e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc00084aa80, 0x3, 0x0, 0x50, 0x0, 0x20000040, 0x400dd0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x1f1 fp=0xc000175b18 sp=0xc000175a58 pc=0x924e01
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00084aa80, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000040, 0x400dd0, 0x0, 0x101d2a0, ...)
	pkg/sentry/kernel/task_syscall.go:170 +0x122 fp=0xc000175c78 sp=0xc000175b18 pc=0x8b68b2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00084aa80, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000040, 0x400dd0, 0x20000040, 0x400dd0)
	pkg/sentry/kernel/task_syscall.go:305 +0x66 fp=0xc000175d00 sp=0xc000175c78 pc=0x8b7a96
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00084aa80, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000040, 0x400dd0, 0xc00083e360, 0xc000175e01)
	pkg/sentry/kernel/task_syscall.go:265 +0x96 fp=0xc000175d60 sp=0xc000175d00 pc=0x8b7626
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00084aa80, 0x2, 0xc0001c0000)
	pkg/sentry/kernel/task_syscall.go:240 +0x15c fp=0xc000175e20 sp=0xc000175d60 pc=0x8b6fbc
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00084aa80, 0x11b9600, 0x0)
	pkg/sentry/kernel/task_run.go:274 +0xf97 fp=0xc000175f60 sp=0xc000175e20 pc=0x8ac017
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00084aa80, 0xc)
	pkg/sentry/kernel/task_run.go:92 +0x18b fp=0xc000175fd0 sp=0xc000175f60 pc=0x8aa96b
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc000175fd8 sp=0xc000175fd0 pc=0x467d61
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0xfe