panic: PullUp failed goroutine 295164 [running]: panic(0x1815320, 0x1bc0100) GOROOT/src/runtime/panic.go:1064 +0x545 fp=0xc00f504a10 sp=0xc00f504948 pc=0x439ae5 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).headerView(0xc004fd0a00, 0x2, 0x10, 0x10, 0x0) pkg/tcpip/stack/packet_buffer.go:280 +0x1d1 fp=0xc00f504a98 sp=0xc00f504a10 pc=0xc7f1b1 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).consume(0xc004fd0a00, 0x2, 0x8, 0xc00f504b78, 0xc001568250, 0xc001568258, 0xc00f504be8) pkg/tcpip/stack/packet_buffer.go:270 +0x26c fp=0xc00f504b30 sp=0xc00f504a98 pc=0xc7eecc gvisor.dev/gvisor/pkg/tcpip/stack.PacketHeader.Consume(...) pkg/tcpip/stack/packet_buffer.go:380 gvisor.dev/gvisor/pkg/tcpip/header/parse.UDP(0xc004fd0a00, 0xc94cca) pkg/tcpip/header/parse/parse.go:150 +0x4c fp=0xc00f504b80 sp=0xc00f504b30 pc=0xec664c gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*protocol).Parse(0xc000496068, 0xc004fd0a00, 0x11) pkg/tcpip/transport/udp/protocol.go:114 +0x39 fp=0xc00f504ba8 sp=0xc00f504b80 pc=0xf36d19 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).ParsePacketBufferTransport(0xc00039d500, 0x11, 0xc004fd0a00, 0xe) pkg/tcpip/stack/stack.go:1838 +0x107 fp=0xc00f504bf8 sp=0xc00f504ba8 pc=0xc94d27 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*protocol).parseAndValidate(0xc0004d0c60, 0xc004fd0a00, 0x0, 0xc00f504ce8, 0xc00f504d48, 0x6432b3) pkg/tcpip/network/ipv6/ipv6.go:2097 +0x211 fp=0xc00f504ca0 sp=0xc00f504bf8 pc=0xf72811 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).HandlePacket(0xc00083e800, 0xc004fd0a00) pkg/tcpip/network/ipv6/ipv6.go:1010 +0x107 fp=0xc00f504f38 sp=0xc00f504ca0 pc=0xf6a5e7 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverNetworkPacket(0xc0004d20f0, 0xc002195028, 0x6, 0x0, 0x0, 0x86dd, 0xc004fd0a00) pkg/tcpip/stack/nic.go:762 +0x442 fp=0xc00f505038 sp=0xc00f504f38 pc=0xc7b462 gvisor.dev/gvisor/pkg/tcpip/link/channel.(*Endpoint).InjectLinkAddr(...) pkg/tcpip/link/channel/channel.go:193 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Write(0xc0005b4a28, 0xc004fe6b90, 0x46, 0x46, 0x0, 0x1, 0x200002c0) pkg/tcpip/link/tun/device.go:226 +0x4a3 fp=0xc00f505198 sp=0xc00f505038 pc=0xf8d443 gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Write(0xc0005b49c0, 0x1c0cec0, 0xc00f4d3500, 0x1c06da0, 0xc00fb3e000, 0x0, 0x1, 0x200002c0, 0x46, 0x100, ...) pkg/sentry/devices/tundev/tundev.go:146 +0x22b fp=0xc00f5052c8 sp=0xc00f505198 pc=0x14cdd6b gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc0005b49c0, 0x1c0cec0, 0xc00f4d3500, 0x1c06da0, 0xc00fb3e000, 0x0, 0x1, 0x200002c0, 0x46, 0x100, ...) pkg/sentry/vfs/file_description.go:654 +0x131 fp=0xc00f5053b0 sp=0xc00f5052c8 pc=0x95c171 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc00f4d3500, 0xc0005b49c0, 0x1c06da0, 0xc00fb3e000, 0x0, 0x1, 0x200002c0, 0x46, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:345 +0xee fp=0xc00f5055b0 sp=0xc00f5053b0 pc=0x139e96e gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc00f4d3500, 0xf0, 0x200002c0, 0x46, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:314 +0x2a5 fp=0xc00f505730 sp=0xc00f5055b0 pc=0x139e1e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00f4d3500, 0x1, 0xf0, 0x200002c0, 0x46, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/kernel/task_syscall.go:102 +0x453 fp=0xc00f5059d0 sp=0xc00f505730 pc=0xd92d33 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00f4d3500, 0x1, 0xf0, 0x200002c0, 0x46, 0x0, 0x0, 0x0, 0x408eb8, 0xc00f4d3de7) pkg/sentry/kernel/task_syscall.go:237 +0xba fp=0xc00f505ab0 sp=0xc00f5059d0 pc=0xd944ba gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00f4d3500, 0x1, 0xf0, 0x200002c0, 0x46, 0x0, 0x0, 0x0, 0x141700b, 0x2f18996) pkg/sentry/kernel/task_syscall.go:197 +0x10f fp=0xc00f505b60 sp=0xc00f505ab0 pc=0xd93dcf gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00f4d3500, 0x2, 0xc00f4d3500) pkg/sentry/kernel/task_syscall.go:172 +0x1ea fp=0xc00f505ca0 sp=0xc00f505b60 pc=0xd9356a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00f4d3500, 0x1bd8d00, 0x0) pkg/sentry/kernel/task_run.go:282 +0x12a7 fp=0xc00f505ed8 sp=0xc00f505ca0 pc=0xd7eea7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00f4d3500, 0x3b75) pkg/sentry/kernel/task_run.go:97 +0x398 fp=0xc00f505fd0 sp=0xc00f505ed8 pc=0xd7cfd8 runtime.goexit() src/runtime/asm_amd64.s:1374 +0x1 fp=0xc00f505fd8 sp=0xc00f505fd0 pc=0x475221 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:328 +0x1a5