panic: runtime error: integer divide by zero

goroutine 318432 [running]:
panic(0xedf6c0, 0x19f3800)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc001403330 sp=0xc001403278 pc=0x43438d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc001403350 sp=0xc001403330 pc=0x432afb
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc00013b190, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x299 fp=0xc0014033f0 sp=0xc001403350 pc=0x7badb9
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc00013b190, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xa4 fp=0xc0014034d8 sp=0xc0014033f0 pc=0x7b9034
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc00013b190, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x20, 0xf49b20, ...)
	pkg/tcpip/stack/conntrack.go:621 +0xe6 fp=0xc001403570 sp=0xc0014034d8 pc=0x7bb756
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc00146f200, 0xe61ae0, 0xc0022d03c0, 0xc000796e10)
	pkg/tcpip/transport/tcp/endpoint.go:2017 +0x111 fp=0xc001403670 sp=0xc001403570 pc=0x99e021
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc001ef5500, 0x7f986acf3818, 0xc00146f200, 0x50, 0x1000, 0x2, 0xc0014037a0, 0x40a605, 0xf48620)
	pkg/sentry/socket/netstack/netstack.go:1613 +0xa32 fp=0xc001403740 sp=0xc001403670 pc=0x9e1c12
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc001ef5500, 0x1211640, 0xc001028e00, 0x7f986acf3818, 0xc00146f200, 0x2, 0x1, 0x0, 0x50, 0x1000, ...)
	pkg/sentry/socket/netstack/netstack.go:998 +0x163 fp=0xc0014037b0 sp=0xc001403740 pc=0x9dd693
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc001028e00, 0xc001ef5500, 0x0, 0x50, 0x20001280, 0x1000, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:981 +0x8a8 fp=0xc0014039c8 sp=0xc0014037b0 pc=0x9dd498
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc001ef5500, 0x7f986acf3700, 0xc001028e00, 0x0, 0x50, 0x20001280, 0x1000, 0xc001ef5e3c, 0x10, 0x90)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xae fp=0xc001403a38 sp=0xc0014039c8 pc=0x92e85e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc001ef5500, 0x4, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x218 fp=0xc001403b08 sp=0xc001403a38 pc=0x92e358
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001ef5500, 0x37, 0x4, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x103e2c0, ...)
	pkg/sentry/kernel/task_syscall.go:170 +0x122 fp=0xc001403c68 sp=0xc001403b08 pc=0x8bde62
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001ef5500, 0x37, 0x4, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x20000040, 0x0)
	pkg/sentry/kernel/task_syscall.go:305 +0x66 fp=0xc001403cf0 sp=0xc001403c68 pc=0x8bf046
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001ef5500, 0x37, 0x4, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x11de701, 0x100000000000000)
	pkg/sentry/kernel/task_syscall.go:265 +0x96 fp=0xc001403d50 sp=0xc001403cf0 pc=0x8bebd6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001ef5500, 0x2, 0xc001ef5500)
	pkg/sentry/kernel/task_syscall.go:240 +0x15c fp=0xc001403e10 sp=0xc001403d50 pc=0x8be56c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001ef5500, 0x11de7e0, 0x0)
	pkg/sentry/kernel/task_run.go:274 +0xc18 fp=0xc001403f60 sp=0xc001403e10 pc=0x8b2e98
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001ef5500, 0x27dc)
	pkg/sentry/kernel/task_run.go:92 +0x18b fp=0xc001403fd0 sp=0xc001403f60 pc=0x8b1b6b
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc001403fd8 sp=0xc001403fd0 pc=0x467d61
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0xfe