panic: runtime error: integer divide by zero

goroutine 4047318 [running]:
panic(0xef6ea0, 0x1a24b00)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc00dd81370 sp=0xc00dd812b8 pc=0x43438d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc00dd81390 sp=0xc00dd81370 pc=0x432afb
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc00d1df610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x299 fp=0xc00dd81430 sp=0xc00dd81390 pc=0x80ff69
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc00d1df610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xa4 fp=0xc00dd81518 sp=0xc00dd81430 pc=0x80e1e4
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc00d1df610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0efca73c0, 0x20, 0x20, ...)
	pkg/tcpip/stack/conntrack.go:623 +0xe6 fp=0xc00dd815b0 sp=0xc00dd81518 pc=0x810906
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:430
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc0063ec000, 0xe784c0, 0xc0efca73c0, 0xc003432920)
	pkg/tcpip/transport/tcp/endpoint.go:2054 +0x1a1 fp=0xc00dd816b8 sp=0xc00dd815b0 pc=0x9b0241
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc00127aa80, 0x122fe40, 0xc002cc4900, 0x7fcdd6819dd8, 0xc0063ec000, 0x50, 0x20001280, 0x1000, 0x2, 0x1059000, ...)
	pkg/sentry/socket/netstack/netstack.go:1671 +0xfe9 fp=0xc00dd81898 sp=0xc00dd816b8 pc=0x9f42f9
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc00127aa80, 0x122fe40, 0xc002cc4900, 0x7fcdd6819dd8, 0xc0063ec000, 0x2, 0x1, 0x0, 0x50, 0x20001280, ...)
	pkg/sentry/socket/netstack/netstack.go:1003 +0x187 fp=0xc00dd81908 sp=0xc00dd81898 pc=0x9ef007
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc002cc4900, 0xc00127aa80, 0x0, 0x50, 0x20001280, 0x1000, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:986 +0x35e fp=0xc00dd819c8 sp=0xc00dd81908 pc=0x9eee0e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc00127aa80, 0x7fcdd6819cc0, 0xc002cc4900, 0x0, 0x50, 0x20001280, 0x1000, 0xc00127b3bc, 0x10, 0x90)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xae fp=0xc00dd81a38 sp=0xc00dd819c8 pc=0x93e56e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc00127aa80, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x218 fp=0xc00dd81b08 sp=0xc00dd81a38 pc=0x93e068
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00127aa80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x105aae0, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x122 fp=0xc00dd81c68 sp=0xc00dd81b08 pc=0x8cd162
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00127aa80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x20000040, 0x0)
	pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc00dd81cf0 sp=0xc00dd81c68 pc=0x8ce346
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00127aa80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x11fc201, 0x100000000000000)
	pkg/sentry/kernel/task_syscall.go:198 +0x96 fp=0xc00dd81d50 sp=0xc00dd81cf0 pc=0x8cded6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00127aa80, 0x2, 0xc00127aa80)
	pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc00dd81e10 sp=0xc00dd81d50 pc=0x8cd86c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00127aa80, 0x11fc220, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0xc18 fp=0xc00dd81f60 sp=0xc00dd81e10 pc=0x8c2228
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00127aa80, 0xf4db)
	pkg/sentry/kernel/task_run.go:93 +0x18b fp=0xc00dd81fd0 sp=0xc00dd81f60 pc=0x8c0efb
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc00dd81fd8 sp=0xc00dd81fd0 pc=0x467d61
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0xfe