panic: runtime error: integer divide by zero

goroutine 990357 [running]:
panic(0x15530e0, 0x21ff330)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc0001daba8 sp=0xc0001daaf0 pc=0x43611d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc0001dabc8 sp=0xc0001daba8 pc=0x43488b
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc0003d7610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x3df fp=0xc0001dacc0 sp=0xc0001dabc8 pc=0xa7a5ff
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc0003d7610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xe0 fp=0xc0001dae70 sp=0xc0001dacc0 pc=0xa77d50
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc0003d7610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x203000, 0x14fe600, 0xc001b03d6f, ...)
	pkg/tcpip/stack/conntrack.go:623 +0x158 fp=0xc0001daf68 sp=0xc0001dae70 pc=0xa7b0b8
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:430
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc001f8a000, 0x14d3860, 0xc000e45f20, 0xc001b03d60)
	pkg/tcpip/transport/tcp/endpoint.go:2054 +0x2e0 fp=0xc0001db0e8 sp=0xc0001daf68 pc=0xcf46a0
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc001ec4a80, 0x19038a0, 0xc00223ea00, 0x7f5a745ff240, 0xc001f8a000, 0x50, 0x0, 0x600, 0x2, 0xc0001db428, ...)
	pkg/sentry/socket/netstack/netstack.go:1671 +0x1747 fp=0xc0001db3b0 sp=0xc0001db0e8 pc=0xd64ac7
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc001ec4a80, 0x19038a0, 0xc00223ea00, 0x7f5a745ff240, 0xc001f8a000, 0x2, 0x1, 0x0, 0x50, 0x0, ...)
	pkg/sentry/socket/netstack/netstack.go:1003 +0x1e6 fp=0xc0001db438 sp=0xc0001db3b0 pc=0xd5d296
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc00223ea00, 0xc001ec4a80, 0x0, 0x50, 0x0, 0x600, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:986 +0x4cf fp=0xc0001db588 sp=0xc0001db438 pc=0xd5d04f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc001ec4a80, 0x7f5a745ff128, 0xc00223ea00, 0x0, 0x50, 0x0, 0x600, 0x10, 0x90, 0x10)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xd7 fp=0xc0001db628 sp=0xc0001db588 pc=0xc59a37
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc001ec4a80, 0x3, 0x0, 0x50, 0x0, 0x20000140, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x2b7 fp=0xc0001db740 sp=0xc0001db628 pc=0xc595b7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001ec4a80, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000140, 0x0, 0x340, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x44e fp=0xc0001db9e0 sp=0xc0001db740 pc=0xbb554e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001ec4a80, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000140, 0x0, 0x407baa, 0xc001ec5357)
	pkg/sentry/kernel/task_syscall.go:238 +0xb5 fp=0xc0001dbac0 sp=0xc0001db9e0 pc=0xbb6c05
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001ec4a80, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000140, 0x0, 0x1152f02, 0x2bedc32)
	pkg/sentry/kernel/task_syscall.go:198 +0x10a fp=0xc0001dbb70 sp=0xc0001dbac0 pc=0xbb656a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001ec4a80, 0x2, 0xc001ec4a80)
	pkg/sentry/kernel/task_syscall.go:173 +0x1e8 fp=0xc0001dbcb0 sp=0xc0001dbb70 pc=0xbb5d58
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001ec4a80, 0x18cf140, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0x11d9 fp=0xc0001dbee8 sp=0xc0001dbcb0 pc=0xba26a9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001ec4a80, 0xa5b1)
	pkg/sentry/kernel/task_run.go:93 +0x31d fp=0xc0001dbfd0 sp=0xc0001dbee8 pc=0xba087d
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc0001dbfd8 sp=0xc0001dbfd0 pc=0x46b961
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0x19e