panic: runtime error: integer divide by zero

goroutine 557929 [running]:
panic(0x15325e0, 0x21c6320)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc00215ebe0 sp=0xc00215eb28 pc=0x43611d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc00215ec00 sp=0xc00215ebe0 pc=0x43488b
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc000238ad0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x3df fp=0xc00215ecf8 sp=0xc00215ec00 pc=0x9fb3bf
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc000238ad0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xe0 fp=0xc00215eea8 sp=0xc00215ecf8 pc=0x9f8b10
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc000238ad0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14ddc40, 0xc001345a7f, 0x203000, ...)
	pkg/tcpip/stack/conntrack.go:623 +0x158 fp=0xc00215efa0 sp=0xc00215eea8 pc=0x9fbe78
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:422
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc0004a0c00, 0x14b39a0, 0xc001e309c0, 0xc001345a70)
	pkg/tcpip/transport/tcp/endpoint.go:2017 +0x1eb fp=0xc00215f118 sp=0xc00215efa0 pc=0xcdde6b
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc001c08a80, 0x7f47040424d0, 0xc0004a0c00, 0x50, 0x1000, 0x2, 0x7f4743babc80, 0x0, 0x447a17)
	pkg/sentry/socket/netstack/netstack.go:1632 +0xfe7 fp=0xc00215f2c8 sp=0xc00215f118 pc=0xd4cd67
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc001c08a80, 0x18dff20, 0xc00130e900, 0x7f47040424d0, 0xc0004a0c00, 0x2, 0x1, 0x0, 0x50, 0x1000, ...)
	pkg/sentry/socket/netstack/netstack.go:1017 +0x1bf fp=0xc00215f350 sp=0xc00215f2c8 pc=0xd4667f
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc00130e900, 0xc001c08a80, 0x0, 0x50, 0x20001280, 0x1000, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:1000 +0xba3 fp=0xc00215f588 sp=0xc00215f350 pc=0xd46413
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc001c08a80, 0x7f47040423b8, 0xc00130e900, 0x0, 0x50, 0x20001280, 0x1000, 0x10, 0x90, 0x10)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xd7 fp=0xc00215f628 sp=0xc00215f588 pc=0xc45ae7
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc001c08a80, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x2b7 fp=0xc00215f740 sp=0xc00215f628 pc=0xc45667
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001c08a80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x340, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x44e fp=0xc00215f9e0 sp=0xc00215f740 pc=0xba248e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001c08a80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x407baa, 0xc001c09357)
	pkg/sentry/kernel/task_syscall.go:238 +0xb5 fp=0xc00215fac0 sp=0xc00215f9e0 pc=0xba3b45
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001c08a80, 0x37, 0x3, 0x0, 0x50, 0x20001280, 0x20000040, 0x0, 0x1130e52, 0x2bb48b2)
	pkg/sentry/kernel/task_syscall.go:198 +0x10a fp=0xc00215fb70 sp=0xc00215fac0 pc=0xba34aa
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001c08a80, 0x2, 0xc001c08a80)
	pkg/sentry/kernel/task_syscall.go:173 +0x1e8 fp=0xc00215fcb0 sp=0xc00215fb70 pc=0xba2c98
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001c08a80, 0x18ac400, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0x11d9 fp=0xc00215fee8 sp=0xc00215fcb0 pc=0xb8f5d9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001c08a80, 0x6248)
	pkg/sentry/kernel/task_run.go:93 +0x31d fp=0xc00215ffd0 sp=0xc00215fee8 pc=0xb8d7ad
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc00215ffd8 sp=0xc00215ffd0 pc=0x46b961
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0x19e