panic: runtime error: integer divide by zero

goroutine 116925 [running]:
panic(0xefdde0, 0x1a3eb00)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc00139f370 sp=0xc00139f2b8 pc=0x43438d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc00139f390 sp=0xc00139f370 pc=0x432afb
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc0003c01d0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x299 fp=0xc00139f430 sp=0xc00139f390 pc=0x810759
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc0003c01d0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xa4 fp=0xc00139f518 sp=0xc00139f430 pc=0x80e9d4
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc0003c01d0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc00191a280, 0x20, 0x20, ...)
	pkg/tcpip/stack/conntrack.go:623 +0xe6 fp=0xc00139f5b0 sp=0xc00139f518 pc=0x8110f6
gvisor.dev/gvisor/pkg/tcpip/stack.(*IPTables).OriginalDst(...)
	pkg/tcpip/stack/iptables.go:430
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).GetSockOpt(0xc0007da600, 0x1206780, 0xc00191a280, 0xc0014d2100)
	pkg/tcpip/transport/tcp/endpoint.go:2051 +0x1a7 fp=0xc00139f6b8 sp=0xc00139f5b0 pc=0x9b7837
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc000533500, 0x123a000, 0xc0002d4500, 0x7fd9636dd0b8, 0xc0007da600, 0x50, 0x0, 0x600, 0x2, 0x1060a20, ...)
	pkg/sentry/socket/netstack/netstack.go:1674 +0xfe9 fp=0xc00139f898 sp=0xc00139f6b8 pc=0x9fb6e9
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc000533500, 0x123a000, 0xc0002d4500, 0x7fd9636dd0b8, 0xc0007da600, 0x2, 0x1, 0x0, 0x50, 0x0, ...)
	pkg/sentry/socket/netstack/netstack.go:1006 +0x187 fp=0xc00139f908 sp=0xc00139f898 pc=0x9f6417
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc0002d4500, 0xc000533500, 0x0, 0x50, 0x0, 0x600, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:989 +0x35e fp=0xc00139f9c8 sp=0xc00139f908 pc=0x9f621e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc000533500, 0x7fd9636dcfa0, 0xc0002d4500, 0x0, 0x50, 0x0, 0x600, 0xc000533e3c, 0x10, 0x90)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xae fp=0xc00139fa38 sp=0xc00139f9c8 pc=0x945bfe
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc000533500, 0x3, 0x0, 0x50, 0x0, 0x20000240, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x218 fp=0xc00139fb08 sp=0xc00139fa38 pc=0x9456f8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000533500, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000240, 0x0, 0x0, 0x1063720, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x122 fp=0xc00139fc68 sp=0xc00139fb08 pc=0x8cd952
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000533500, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000240, 0x0, 0x20000240, 0x0)
	pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc00139fcf0 sp=0xc00139fc68 pc=0x8ceb36
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000533500, 0x37, 0x3, 0x0, 0x50, 0x0, 0x20000240, 0x0, 0x1206001, 0x100000000000000)
	pkg/sentry/kernel/task_syscall.go:198 +0x96 fp=0xc00139fd50 sp=0xc00139fcf0 pc=0x8ce6c6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000533500, 0x2, 0xc000533500)
	pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc00139fe10 sp=0xc00139fd50 pc=0x8ce05c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000533500, 0x1206080, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0xc18 fp=0xc00139ff60 sp=0xc00139fe10 pc=0x8c2a18
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000533500, 0x11fd)
	pkg/sentry/kernel/task_run.go:93 +0x18b fp=0xc00139ffd0 sp=0xc00139ff60 pc=0x8c16eb
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc00139ffd8 sp=0xc00139ffd0 pc=0x467d61
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0xfe