panic: runtime error: integer divide by zero

goroutine 146528 [running]:
panic(0x1534460, 0x21ca320)
	GOROOT/src/runtime/panic.go:1064 +0x46d fp=0xc000f42be0 sp=0xc000f42b28 pc=0x43611d
runtime.panicdivide()
	GOROOT/src/runtime/panic.go:191 +0x5b fp=0xc000f42c00 sp=0xc000f42be0 pc=0x43488b
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).bucket(0xc00035f610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0)
	pkg/tcpip/stack/conntrack.go:508 +0x3df fp=0xc000f42cf8 sp=0xc000f42c00 pc=0x9fb3bf
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).connForTID(0xc00035f610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x600000000, 0x800, 0x0, 0x0)
	pkg/tcpip/stack/conntrack.go:247 +0xe0 fp=0xc000f42ea8 sp=0xc000f42cf8 pc=0x9f8b10
gvisor.dev/gvisor/pkg/tcpip/stack.(*ConnTrack).originalDst(0xc00035f610, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14dfac0, 0xc00201b00f, 0x203000, ...)
	pkg/tcpip/stack/conntrack.go:623 +0x158 fp=0xc000f42fa0 sp=0xc000f42ea8 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(0xc001007800, 0x14b57e0, 0xc001c51ec0, 0xc00201b000)
	pkg/tcpip/transport/tcp/endpoint.go:2017 +0x1eb fp=0xc000f43118 sp=0xc000f42fa0 pc=0xcde1eb
gvisor.dev/gvisor/pkg/sentry/socket/netstack.getSockOptIP(0xc001d80000, 0x7fdd95bfe948, 0xc001007800, 0x50, 0x1000, 0x2, 0x0, 0xc001802800, 0xc001802800)
	pkg/sentry/socket/netstack/netstack.go:1632 +0xfe7 fp=0xc000f432c8 sp=0xc000f43118 pc=0xd4f0e7
gvisor.dev/gvisor/pkg/sentry/socket/netstack.GetSockOpt(0xc001d80000, 0x18e2960, 0xc0004c2700, 0x7fdd95bfe948, 0xc001007800, 0x2, 0x1, 0x0, 0x50, 0x1000, ...)
	pkg/sentry/socket/netstack/netstack.go:1017 +0x1bf fp=0xc000f43350 sp=0xc000f432c8 pc=0xd489ff
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketOperations).GetSockOpt(0xc0004c2700, 0xc001d80000, 0x0, 0x50, 0x20000280, 0x1000, 0x0, 0x0, 0x0)
	pkg/sentry/socket/netstack/netstack.go:1000 +0xba3 fp=0xc000f43588 sp=0xc000f43350 pc=0xd48793
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getSockOpt(0xc001d80000, 0x7fdd95bfe830, 0xc0004c2700, 0x0, 0x50, 0x20000280, 0x1000, 0x10, 0x90, 0x10)
	pkg/sentry/syscalls/linux/sys_socket.go:514 +0xd7 fp=0xc000f43628 sp=0xc000f43588 pc=0xc458a7
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.GetSockOpt(0xc001d80000, 0x3, 0x0, 0x50, 0x20000280, 0x20000040, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_socket.go:468 +0x2b7 fp=0xc000f43740 sp=0xc000f43628 pc=0xc45427
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001d80000, 0x37, 0x3, 0x0, 0x50, 0x20000280, 0x20000040, 0x0, 0x340, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x44e fp=0xc000f439e0 sp=0xc000f43740 pc=0xba224e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001d80000, 0x37, 0x3, 0x0, 0x50, 0x20000280, 0x20000040, 0x0, 0x407baa, 0xc001d808d7)
	pkg/sentry/kernel/task_syscall.go:238 +0xb5 fp=0xc000f43ac0 sp=0xc000f439e0 pc=0xba3905
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001d80000, 0x37, 0x3, 0x0, 0x50, 0x20000280, 0x20000040, 0x0, 0x1132c62, 0x2bb88b2)
	pkg/sentry/kernel/task_syscall.go:198 +0x10a fp=0xc000f43b70 sp=0xc000f43ac0 pc=0xba326a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001d80000, 0x2, 0xc001d80000)
	pkg/sentry/kernel/task_syscall.go:173 +0x1e8 fp=0xc000f43cb0 sp=0xc000f43b70 pc=0xba2a58
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001d80000, 0x18aee00, 0x0)
	pkg/sentry/kernel/task_run.go:275 +0x11d9 fp=0xc000f43ee8 sp=0xc000f43cb0 pc=0xb8f399
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001d80000, 0x1b70)
	pkg/sentry/kernel/task_run.go:93 +0x31d fp=0xc000f43fd0 sp=0xc000f43ee8 pc=0xb8d56d
runtime.goexit()
	src/runtime/asm_amd64.s:1373 +0x1 fp=0xc000f43fd8 sp=0xc000f43fd0 pc=0x46b961
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:318 +0x19e