panic: bytes only has space for 6 bytes but need space for 670 bytes (length = 83) for extension header with id = 253 goroutine 390142 gp=0xc002421180 m=0 mp=0x20a8ca0 [running]: panic({0x11186e0?, 0xc006a92890?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc00074aba0 sp=0xc00074aaf0 pc=0x473fe8 gvisor.dev/gvisor/pkg/tcpip/header.(*IPv6PayloadIterator).nextHeaderData(0xc00c8c9290, 0x0, {0xc007155580, 0x6, 0x6}) pkg/tcpip/header/ipv6_extension_headers.go:720 +0x6d9 fp=0xc00074ace0 sp=0xc00074aba0 pc=0x998959 gvisor.dev/gvisor/pkg/tcpip/header.(*IPv6PayloadIterator).Next(0xc00c8c9290) pkg/tcpip/header/ipv6_extension_headers.go:645 +0x269 fp=0xc00074ad78 sp=0xc00074ace0 pc=0x998149 gvisor.dev/gvisor/pkg/tcpip/header/parse.IPv6(0xc00ab19e00) pkg/tcpip/header/parse/parse.go:97 +0x205 fp=0xc00074aef8 sp=0xc00074ad78 pc=0xae16a5 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*protocol).Parse(0xc00074ad10?, 0x8e38e5?) pkg/tcpip/network/ipv6/ipv6.go:2661 +0x16 fp=0xc00074af10 sp=0xc00074aef8 pc=0xb65d96 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*protocol).parseAndValidate(0xc0074cfe00, 0xc00ab19e00) pkg/tcpip/network/ipv6/ipv6.go:2623 +0x25 fp=0xc00074af58 sp=0xc00074af10 pc=0xb65b85 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).HandlePacket(0xc00dcbaa88, 0xc00ab19e00) pkg/tcpip/network/ipv6/ipv6.go:1101 +0xa5 fp=0xc00074b4b0 sp=0xc00074af58 pc=0xb5c385 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverNetworkPacket(0xc009f9fd48, 0x86dd, 0xc00ab19e00) pkg/tcpip/stack/nic.go:774 +0x10c fp=0xc00074b4e8 sp=0xc00074b4b0 pc=0x9ce28c gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).DeliverNetworkPacket(0x74eea7?, 0x86dd, 0xc00ab19e00) pkg/tcpip/link/nested/nested.go:61 +0x7b fp=0xc00074b520 sp=0xc00074b4e8 pc=0xb80edb gvisor.dev/gvisor/pkg/tcpip/link/packetsocket.(*endpoint).DeliverNetworkPacket(0xc0118cb180, 0x86dd, 0xc00ab19e00) pkg/tcpip/link/packetsocket/packetsocket.go:47 +0x38 fp=0xc00074b548 sp=0xc00074b520 pc=0xb82898 gvisor.dev/gvisor/pkg/tcpip/link/channel.(*Endpoint).InjectInbound(0xc0054856e0, 0x86dd, 0xc00ab19e00) pkg/tcpip/link/channel/channel.go:207 +0x6d fp=0xc00074b580 sp=0xc00074b548 pc=0xb860cd gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Write(0xc00dcc4068, 0xc010bcc390) pkg/tcpip/link/tun/device.go:250 +0x566 fp=0xc00074b6a0 sp=0xc00074b580 pc=0xb88806 gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Write(0xc00074b7f8?, {0x1588260, 0xc008238588}, {{0x157f7d8, 0xc002130008}, {0x0, 0x1, 0x20001240, 0x46}, {0x0, ...}}, ...) pkg/sentry/devices/tundev/tundev.go:163 +0x2d7 fp=0xc00074b760 sp=0xc00074b6a0 pc=0xe8bed7 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00dcc4000, {0x1588260, 0xc008238588}, {{0x157f7d8, 0xc002130008}, {0x0, 0x1, 0x20001240, 0x46}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:682 +0x8b fp=0xc00074b7e0 sp=0xc00074b760 pc=0x7dc52b gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc008238588, 0xc00dcc4000, {{0x157f7d8, 0xc002130008}, {0x0, 0x1, 0x20001240, 0x46}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0x78 fp=0xc00074b970 sp=0xc00074b7e0 pc=0xc0fd98 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc008238588, 0x5632770419ce?, {{0xc8}, {0x20001240}, {0x46}, {0x46}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x1a5 fp=0xc00074ba78 sp=0xc00074b970 pc=0xc0f005 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc008238588, 0x1, {{0xc8}, {0x20001240}, {0x46}, {0x46}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc00074bca8 sp=0xc00074ba78 pc=0xa73af7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc008238588, 0x1, {{0xc8}, {0x20001240}, {0x46}, {0x46}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc00074bd00 sp=0xc00074bca8 pc=0xa74c65 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc008238588, 0x1, {{0xc8}, {0x20001240}, {0x46}, {0x46}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc00074bd50 sp=0xc00074bd00 pc=0xa74965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00353c4d0?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc00074be28 sp=0xc00074bd50 pc=0xa746e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00d3dfd40?, 0xc008238588) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc00074bf30 sp=0xc00074be28 pc=0xa69f17 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc008238588, 0xb2fd) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc00074bfc0 sp=0xc00074bf30 pc=0xa68974 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:411 +0x25 fp=0xc00074bfe0 sp=0xc00074bfc0 pc=0xa72505 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc00074bfe8 sp=0xc00074bfe0 pc=0x47d0c1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 390636 pkg/sentry/kernel/task_start.go:411 +0xc5