panic: runtime error: integer divide by zero

goroutine 2278330 [running]:
panic(0xedd780, 0x19ee800)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc000f35330 sp=0xc000f35278 pc=0x43438d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc000f35350 sp=0xc000f35330 pc=0x432afb
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc00013a890, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x299 fp=0xc000f353f0 sp=0xc000f35350 pc=0x7bad29
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc00013a890, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xa4 fp=0xc000f354d8 sp=0xc000f353f0 pc=0x7b8fa4
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc00013a890, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x20, 0xf47d00, ...)
	pkg/tcpip/stack/conntrack.go:621 +0xe6 fp=0xc000f35570 sp=0xc000f354d8 pc=0x7bb6c6
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc001f99800, 0xe5fb60, 0xc00147b340, 0xc002a533d0)
	pkg/tcpip/transport/tcp/endpoint.go:2017 +0x111 fp=0xc000f35670 sp=0xc000f35570 pc=0x99df41
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc001ff4000, 0x7f83cbc2a3a0, 0xc001f99800, 0x50, 0x600, 0x2, 0xc000f357a0, 0x40a605, 0xf46800)
	pkg/sentry/socket/netstack/netstack.go:1613 +0xa32 fp=0xc000f35740 sp=0xc000f35670 pc=0x9e2a82
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc001ff4000, 0x120f700, 0xc003b72400, 0x7f83cbc2a3a0, 0xc001f99800, 0x2, 0x1, 0x0, 0x50, 0x600, ...)
	pkg/sentry/socket/netstack/netstack.go:998 +0x163 fp=0xc000f357b0 sp=0xc000f35740 pc=0x9de503
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc003b72400, 0xc001ff4000, 0x0, 0x50, 0x0, 0x600, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:981 +0x8a8 fp=0xc000f359c8 sp=0xc000f357b0 pc=0x9de308
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc001ff4000, 0x7f83cbc2a288, 0xc003b72400, 0x0, 0x50, 0x0, 0x600, 0xc001ff493c, 0x10, 0x90)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xae fp=0xc000f35a38 sp=0xc000f359c8 pc=0x92e65e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc001ff4000, 0x3, 0x0, 0x50, 0x0, 0x20000280, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x218 fp=0xc000f35b08 sp=0xc000f35a38 pc=0x92e158
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001ff4000, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000280, 0x0, 0x0, 0x103bd40, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x122 fp=0xc000f35c68 sp=0xc000f35b08 pc=0x8bdd32
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001ff4000, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000280, 0x0, 0x20000280, 0x0)
	pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc000f35cf0 sp=0xc000f35c68 pc=0x8bef16
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001ff4000, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000280, 0x0, 0x11dc701, 0x100000000000000)
	pkg/sentry/kernel/task_syscall.go:198 +0x96 fp=0xc000f35d50 sp=0xc000f35cf0 pc=0x8beaa6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001ff4000, 0x2, 0xc001ff4000)
	pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc000f35e10 sp=0xc000f35d50 pc=0x8be43c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001ff4000, 0x11dc7e0, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0xc18 fp=0xc000f35f60 sp=0xc000f35e10 pc=0x8b2e08
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001ff4000, 0xf564)
	pkg/sentry/kernel/task_run.go:93 +0x18b fp=0xc000f35fd0 sp=0xc000f35f60 pc=0x8b1adb
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc000f35fd8 sp=0xc000f35fd0 pc=0x467d61
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0xfe