panic: runtime error: integer divide by zero

goroutine 1088835 [running]:
panic(0x152f760, 0x21c3320)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc00060abe0 sp=0xc00060ab28 pc=0x43611d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc00060ac00 sp=0xc00060abe0 pc=0x43488b
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc0003f6890, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x3df fp=0xc00060acf8 sp=0xc00060ac00 pc=0x9f56ff
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc0003f6890, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xe0 fp=0xc00060aea8 sp=0xc00060acf8 pc=0x9f2e50
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc0003f6890, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14dadc0, 0xc000cee35f, 0x203000, ...)
	pkg/tcpip/stack/conntrack.go:621 +0x158 fp=0xc00060afa0 sp=0xc00060aea8 pc=0x9f61b8
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc002d8a600, 0x14b0d00, 0xc001326500, 0xc000cee350)
	pkg/tcpip/transport/tcp/endpoint.go:2017 +0x1eb fp=0xc00060b118 sp=0xc00060afa0 pc=0xcd953b
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc0023fa000, 0x7f33ad7bbc60, 0xc002d8a600, 0x50, 0x93, 0x2, 0x7f3403d34c80, 0x0, 0x447a17)
	pkg/sentry/socket/netstack/netstack.go:1613 +0xfe7 fp=0xc00060b2c8 sp=0xc00060b118 pc=0xd48867
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc0023fa000, 0x18db580, 0xc00184f800, 0x7f33ad7bbc60, 0xc002d8a600, 0x2, 0x1, 0x0, 0x50, 0x93, ...)
	pkg/sentry/socket/netstack/netstack.go:998 +0x1bf fp=0xc00060b350 sp=0xc00060b2c8 pc=0xd4217f
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc00184f800, 0xc0023fa000, 0x0, 0x50, 0x20000500, 0x93, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:981 +0xad9 fp=0xc00060b588 sp=0xc00060b350 pc=0xd41f09
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc0023fa000, 0x7f33ad7bbb48, 0xc00184f800, 0x0, 0x50, 0x20000500, 0x93, 0x10, 0x90, 0x10)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xd7 fp=0xc00060b628 sp=0xc00060b588 pc=0xc415c7
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc0023fa000, 0x5, 0x0, 0x50, 0x20000500, 0x200005c0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x2b7 fp=0xc00060b740 sp=0xc00060b628 pc=0xc41147
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0023fa000, 0x37, 0x5, 0x0, 0x50, 0x20000500, 0x200005c0, 0x0, 0x340, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:170 +0x44e fp=0xc00060b9e0 sp=0xc00060b740 pc=0xb9de8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0023fa000, 0x37, 0x5, 0x0, 0x50, 0x20000500, 0x200005c0, 0x0, 0x407baa, 0xc0023fa8d7)
	pkg/sentry/kernel/task_syscall.go:305 +0xb5 fp=0xc00060bac0 sp=0xc00060b9e0 pc=0xb9f545
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0023fa000, 0x37, 0x5, 0x0, 0x50, 0x20000500, 0x200005c0, 0x0, 0x1128ae2, 0x2bb1832)
	pkg/sentry/kernel/task_syscall.go:265 +0x10a fp=0xc00060bb70 sp=0xc00060bac0 pc=0xb9eeaa
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0023fa000, 0x2, 0xc0023fa000)
	pkg/sentry/kernel/task_syscall.go:240 +0x1e8 fp=0xc00060bcb0 sp=0xc00060bb70 pc=0xb9e698
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc0023fa000, 0x18a7ce0, 0x0)
	pkg/sentry/kernel/task_run.go:274 +0x11d9 fp=0xc00060bee8 sp=0xc00060bcb0 pc=0xb8af29
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0023fa000, 0x9868)
	pkg/sentry/kernel/task_run.go:92 +0x31d fp=0xc00060bfd0 sp=0xc00060bee8 pc=0xb890fd
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc00060bfd8 sp=0xc00060bfd0 pc=0x46b961
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0x19e