panic: PullUp failed goroutine 761351 [running]: panic(0x1173f40, 0x14d7680) GOROOT/src/runtime/panic.go:1064 +0x545 fp=0xc00938d1d8 sp=0xc00938d110 pc=0x437265 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).headerView(0xc00d5f6000, 0x2, 0xc00d5baf60, 0x1, 0x1) pkg/tcpip/stack/packet_buffer.go:317 +0x115 fp=0xc00938d220 sp=0xc00938d1d8 pc=0x9b59d5 gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).consume(0xc00d5f6000, 0x2, 0x8, 0xc00d658600, 0xc00d658000, 0x20000, 0xc00938d340) pkg/tcpip/stack/packet_buffer.go:303 +0xf2 fp=0xc00938d278 sp=0xc00938d220 pc=0x9b57d2 gvisor.dev/gvisor/pkg/tcpip/stack.PacketHeader.Consume(...) pkg/tcpip/stack/packet_buffer.go:429 gvisor.dev/gvisor/pkg/tcpip/header/parse.UDP(0xc00d5f6000, 0x9b5951) pkg/tcpip/header/parse/parse.go:180 +0x5d fp=0xc00938d2c0 sp=0xc00938d278 pc=0xb6575d gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*protocol).Parse(0xc006da8210, 0xc00d5f6000, 0x11) pkg/tcpip/transport/udp/protocol.go:128 +0x35 fp=0xc00938d2e0 sp=0xc00938d2c0 pc=0xbb5275 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).ParsePacketBufferTransport(0xc00ce7a700, 0x11, 0xc00d5f6000, 0x2f) pkg/tcpip/stack/stack.go:2200 +0xbd fp=0xc00938d318 sp=0xc00938d2e0 pc=0x9c679d gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*protocol).parseAndValidate(0xc0130b0000, 0xc00d5f6000, 0x415a8f, 0x3f7a544b6b00, 0x20300300000000, 0x3f7a54606fff) pkg/tcpip/network/ipv6/ipv6.go:2524 +0x1fc fp=0xc00938d3a0 sp=0xc00938d318 pc=0xbe3c1c gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).HandlePacket(0xc00aec9800, 0xc00d5f6000) pkg/tcpip/network/ipv6/ipv6.go:1207 +0xcd fp=0xc00938d628 sp=0xc00938d3a0 pc=0xbdd66d gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverNetworkPacket(0xc009f56c30, 0xc004415bb8, 0x6, 0x0, 0x0, 0x86dd, 0xc00d5f6000) pkg/tcpip/stack/nic.go:928 +0x31f fp=0xc00938d6b8 sp=0xc00938d628 pc=0x9b2dbf gvisor.dev/gvisor/pkg/tcpip/link/channel.(*Endpoint).InjectLinkAddr(...) pkg/tcpip/link/channel/channel.go:225 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Write(0xc00acfaea8, 0xc00461ab40, 0x3e, 0x3e, 0x20000080, 0x3e, 0x100) pkg/tcpip/link/tun/device.go:275 +0x3bb fp=0xc00938d7a0 sp=0xc00938d6b8 pc=0xbf6e9b gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Write(0xc00acfae40, 0x1523400, 0xc00d83a000, 0x151d5a0, 0xc00b64d000, 0x0, 0x1, 0x20000080, 0x3e, 0x100, ...) pkg/sentry/devices/tundev/tundev.go:175 +0x1a9 fp=0xc00938d870 sp=0xc00938d7a0 pc=0xfa1ae9 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00acfae40, 0x1523400, 0xc00d83a000, 0x151d5a0, 0xc00b64d000, 0x0, 0x1, 0x20000080, 0x3e, 0x100, ...) pkg/sentry/vfs/file_description.go:744 +0xc3 fp=0xc00938d908 sp=0xc00938d870 pc=0x771943 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc00d83a000, 0xc00acfae40, 0x151d5a0, 0xc00b64d000, 0x0, 0x1, 0x20000080, 0x3e, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:423 +0xa5 fp=0xc00938da98 sp=0xc00938d908 pc=0xed09e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc00d83a000, 0xf0, 0x20000080, 0x3e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:386 +0x21e fp=0xc00938db90 sp=0xc00938da98 pc=0xed025e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00d83a000, 0x1, 0xf0, 0x20000080, 0x3e, 0x0, 0x0, 0x0, 0xf1e985, 0x136d2e0, ...) pkg/sentry/kernel/task_syscall.go:114 +0x1b9 fp=0xc00938dc50 sp=0xc00938db90 pc=0xa715d9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00d83a000, 0x1, 0xf0, 0x20000080, 0x3e, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:289 +0x70 fp=0xc00938dcd8 sp=0xc00938dc50 pc=0xa72890 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00d83a000, 0x1, 0xf0, 0x20000080, 0x3e, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:236 +0xb4 fp=0xc00938dd38 sp=0xc00938dcd8 pc=0xa72394 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00d83a000, 0x2, 0xc00d83a000) pkg/sentry/kernel/task_syscall.go:203 +0x198 fp=0xc00938de08 sp=0xc00938dd38 pc=0xa71c78 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00d83a000, 0x14efea0, 0x0) pkg/sentry/kernel/task_run.go:327 +0xd95 fp=0xc00938df60 sp=0xc00938de08 pc=0xa646b5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00d83a000, 0x36ba) pkg/sentry/kernel/task_run.go:100 +0x1e2 fp=0xc00938dfd0 sp=0xc00938df60 pc=0xa631c2 runtime.goexit() src/runtime/asm_amd64.s:1374 +0x1 fp=0xc00938dfd8 sp=0xc00938dfd0 pc=0x4709a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:381 +0x116