panic: PullUp failed goroutine 337221 [running]: panic(0x1815fa0, 0x1bc13c0) GOROOT/src/runtime/panic.go:1064 +0x545 fp=0xc00c2eea00 sp=0xc00c2ee938 pc=0x439ae5 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).headerView(0xc000952500, 0x2, 0x0, 0x5c, 0x0) pkg/tcpip/stack/packet_buffer.go:280 +0x1d1 fp=0xc00c2eea88 sp=0xc00c2eea00 pc=0xc7f4f1 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).consume(0xc000952500, 0x2, 0x8, 0xe, 0xc0066d4450, 0x8, 0x4c) pkg/tcpip/stack/packet_buffer.go:270 +0x26c fp=0xc00c2eeb20 sp=0xc00c2eea88 pc=0xc7f20c gvisor.dev/gvisor/pkg/tcpip/stack.PacketHeader.Consume(...) pkg/tcpip/stack/packet_buffer.go:380 gvisor.dev/gvisor/pkg/tcpip/header/parse.UDP(0xc000952500, 0xc9500a) pkg/tcpip/header/parse/parse.go:150 +0x4c fp=0xc00c2eeb70 sp=0xc00c2eeb20 pc=0xec698c gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*protocol).Parse(0xc0066e49f0, 0xc000952500, 0xc000000011) pkg/tcpip/transport/udp/protocol.go:114 +0x39 fp=0xc00c2eeb98 sp=0xc00c2eeb70 pc=0xf37059 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).ParsePacketBufferTransport(0xc00f7c2e00, 0x11, 0xc000952500, 0xffff) pkg/tcpip/stack/stack.go:1838 +0x107 fp=0xc00c2eebe8 sp=0xc00c2eeb98 pc=0xc95067 gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*protocol).parseAndValidate(0xc00b2db3e0, 0xc000952500, 0x0, 0x0, 0x0, 0x0) pkg/tcpip/network/ipv4/ipv4.go:1263 +0x25a fp=0xc00c2eec80 sp=0xc00c2eebe8 pc=0xf57c7a gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).HandlePacket(0xc00425c700, 0xc000952500) pkg/tcpip/network/ipv4/ipv4.go:758 +0x107 fp=0xc00c2eef38 sp=0xc00c2eec80 pc=0xf53e07 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverNetworkPacket(0xc000548e10, 0xc0087b6e60, 0x6, 0x0, 0x0, 0x800, 0xc000952500) pkg/tcpip/stack/nic.go:762 +0x442 fp=0xc00c2ef038 sp=0xc00c2eef38 pc=0xc7b7a2 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(0xc00b7388a8, 0xc007338000, 0x6a, 0x6a, 0x0, 0x1, 0x20000040) pkg/tcpip/link/tun/device.go:226 +0x4a3 fp=0xc00c2ef198 sp=0xc00c2ef038 pc=0xf8e083 gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Write(0xc00b738840, 0x1c0e180, 0xc00b350a80, 0x1c08060, 0xc0087d1000, 0x0, 0x1, 0x20000040, 0x6a, 0x100, ...) pkg/sentry/devices/tundev/tundev.go:146 +0x22b fp=0xc00c2ef2c8 sp=0xc00c2ef198 pc=0x14ce9ab gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00b738840, 0x1c0e180, 0xc00b350a80, 0x1c08060, 0xc0087d1000, 0x0, 0x1, 0x20000040, 0x6a, 0x100, ...) pkg/sentry/vfs/file_description.go:654 +0x131 fp=0xc00c2ef3b0 sp=0xc00c2ef2c8 pc=0x95c171 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc00b350a80, 0xc00b738840, 0x1c08060, 0xc0087d1000, 0x0, 0x1, 0x20000040, 0x6a, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:345 +0xee fp=0xc00c2ef5b0 sp=0xc00c2ef3b0 pc=0x139f5ae gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc00b350a80, 0xf0, 0x20000040, 0x6a, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:314 +0x2a5 fp=0xc00c2ef730 sp=0xc00c2ef5b0 pc=0x139ee25 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00b350a80, 0x1, 0xf0, 0x20000040, 0x6a, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/kernel/task_syscall.go:102 +0x453 fp=0xc00c2ef9d0 sp=0xc00c2ef730 pc=0xd93073 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00b350a80, 0x1, 0xf0, 0x20000040, 0x6a, 0x0, 0x0, 0x0, 0x408eb8, 0xc00b351367) pkg/sentry/kernel/task_syscall.go:237 +0xba fp=0xc00c2efab0 sp=0xc00c2ef9d0 pc=0xd947fa gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00b350a80, 0x1, 0xf0, 0x20000040, 0x6a, 0x0, 0x0, 0x0, 0x1417c4b, 0x2f19996) pkg/sentry/kernel/task_syscall.go:197 +0x10f fp=0xc00c2efb60 sp=0xc00c2efab0 pc=0xd9410f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00b350a80, 0x2, 0xc00b350a80) pkg/sentry/kernel/task_syscall.go:172 +0x1ea fp=0xc00c2efca0 sp=0xc00c2efb60 pc=0xd938aa gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00b350a80, 0x1bd9fc0, 0x0) pkg/sentry/kernel/task_run.go:282 +0x12a7 fp=0xc00c2efed8 sp=0xc00c2efca0 pc=0xd7f1e7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00b350a80, 0x423e) pkg/sentry/kernel/task_run.go:97 +0x398 fp=0xc00c2effd0 sp=0xc00c2efed8 pc=0xd7d318 runtime.goexit() src/runtime/asm_amd64.s:1374 +0x1 fp=0xc00c2effd8 sp=0xc00c2effd0 pc=0x475221 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:328 +0x1a5