panic: runtime error: integer divide by zero

goroutine 1434185 [running]:
panic(0x154c9a0, 0x21f4320)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc001e6ebb0 sp=0xc001e6eaf8 pc=0x43611d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc001e6ebd0 sp=0xc001e6ebb0 pc=0x43488b
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc000309cd0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x3df fp=0xc001e6ecc8 sp=0xc001e6ebd0 pc=0xa750ef
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc000309cd0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xe0 fp=0xc001e6ee78 sp=0xc001e6ecc8 pc=0xa72840
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc000309cd0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x203022, 0x14f7c20, 0xc000ac9a5f, ...)
	pkg/tcpip/stack/conntrack.go:623 +0x158 fp=0xc001e6ef70 sp=0xc001e6ee78 pc=0xa75ba8
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc001239800, 0x14ccfc0, 0xc08b6f9d80, 0xc000ac9a50)
	pkg/tcpip/transport/tcp/endpoint.go:2054 +0x2e0 fp=0xc001e6f0f0 sp=0xc001e6ef70 pc=0xcec4a0
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc001334a80, 0x18fbc20, 0xc0011b9700, 0x7fcee805a7d0, 0xc001239800, 0x50, 0x20001280, 0x1000, 0x2, 0xc001e6f428, ...)
	pkg/sentry/socket/netstack/netstack.go:1631 +0x1706 fp=0xc001e6f3b0 sp=0xc001e6f0f0 pc=0xd5c0a6
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc001334a80, 0x18fbc20, 0xc0011b9700, 0x7fcee805a7d0, 0xc001239800, 0x2, 0x1, 0x0, 0x50, 0x20001280, ...)
	pkg/sentry/socket/netstack/netstack.go:1003 +0x1e6 fp=0xc001e6f438 sp=0xc001e6f3b0 pc=0xd55096
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc0011b9700, 0xc001334a80, 0x0, 0x50, 0x20001280, 0x1000, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:986 +0x4cf fp=0xc001e6f588 sp=0xc001e6f438 pc=0xd54e4f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc001334a80, 0x7fcee805a6b8, 0xc0011b9700, 0x0, 0x50, 0x20001280, 0x1000, 0x10, 0x90, 0x10)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xd7 fp=0xc001e6f628 sp=0xc001e6f588 pc=0xc54357
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc001334a80, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x2b7 fp=0xc001e6f740 sp=0xc001e6f628 pc=0xc53ed7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001334a80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x340, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x44e fp=0xc001e6f9e0 sp=0xc001e6f740 pc=0xbafe6e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001334a80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x407baa, 0xc001335357)
	pkg/sentry/kernel/task_syscall.go:238 +0xb5 fp=0xc001e6fac0 sp=0xc001e6f9e0 pc=0xbb1525
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001334a80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x1149992, 0x2be2cb2)
	pkg/sentry/kernel/task_syscall.go:198 +0x10a fp=0xc001e6fb70 sp=0xc001e6fac0 pc=0xbb0e8a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001334a80, 0x2, 0xc001334a80)
	pkg/sentry/kernel/task_syscall.go:173 +0x1e8 fp=0xc001e6fcb0 sp=0xc001e6fb70 pc=0xbb0678
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001334a80, 0x18c7a20, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0x11d9 fp=0xc001e6fee8 sp=0xc001e6fcb0 pc=0xb9cfc9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001334a80, 0xe33c)
	pkg/sentry/kernel/task_run.go:93 +0x31d fp=0xc001e6ffd0 sp=0xc001e6fee8 pc=0xb9b19d
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc001e6ffd8 sp=0xc001e6ffd0 pc=0x46b961
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0x19e