panic: IPv6 payload too large: 65536, must be <= 65535 goroutine 903313 [running]: panic(0xfd11e0, 0xc05721c5a0) GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc0027baf90 sp=0xc0027baed8 pc=0x437110 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).addIPHeader(0xc00055c680, 0xc058801020, 0x10, 0xc058801020, 0x10, 0xc000e600f0, 0x400000003a, 0x0, 0x0, 0x0) pkg/tcpip/network/ipv6/ipv6.go:547 +0x2b7 fp=0xc0027bb060 sp=0xc0027baf90 pc=0xb09057 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).WritePacket(0xc00055c680, 0xc003d78000, 0x0, 0x400000003a, 0xc000e600f0, 0xc00dabf980) pkg/tcpip/network/ipv6/ipv6.go:612 +0xaf fp=0xc0027bb4a0 sp=0xc0027bb060 pc=0xb0940f gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket(0xc003d78000, 0x0, 0x400000003a, 0xc000e600f0, 0xc059781a00) pkg/tcpip/stack/route.go:410 +0xb7 fp=0xc0027bb4e0 sp=0xc0027bb4a0 pc=0x9370b7 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).finishWrite(0xc086632400, 0xc002798000, 0x10000, 0x10000, 0xc003d78000, 0x1, 0x12a, 0xc0003f812a) pkg/tcpip/transport/raw/endpoint.go:354 +0x47c fp=0xc0027bb5b8 sp=0xc0027bb4e0 pc=0xaafabc gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc086632400, 0x1306a40, 0xc0572f8050, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/tcpip/transport/raw/endpoint.go:304 +0x325 fp=0xc0027bb690 sp=0xc0027bb5b8 pc=0xaaf2e5 gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc086632400, 0x1306a40, 0xc0572f8050, 0x0, 0xffffffffff000000, 0x0, 0xc09b6287e0, 0x572388) pkg/tcpip/transport/raw/endpoint.go:235 +0x8a fp=0xc0027bb6e0 sp=0xc0027bb690 pc=0xaaee0a gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketVFS2).Write(0xc08eeefe00, 0x1326c60, 0xc04824d500, 0x1321980, 0xc059781a00, 0x0, 0x1, 0x0, 0x10000, 0x0, ...) pkg/sentry/socket/netstack/netstack_vfs2.go:134 +0xf5 fp=0xc0027bb780 sp=0xc0027bb6e0 pc=0xb329b5 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc08eeefe00, 0x1326c60, 0xc04824d500, 0x1321980, 0xc059781a00, 0x0, 0x1, 0x0, 0x10000, 0x0, ...) pkg/sentry/vfs/file_description.go:630 +0xa2 fp=0xc0027bb800 sp=0xc0027bb780 pc=0x7a6ec2 gvisor.dev/gvisor/pkg/sentry/kernel/pipe.(*VFSPipeFD).SpliceToNonPipe(0xc059781a00, 0x1326c60, 0xc04824d500, 0xc08eeefe00, 0xffffffffffffffff, 0x100000, 0x0, 0x0, 0x0) pkg/sentry/kernel/pipe/vfs.go:289 +0x185 fp=0xc0027bb8f0 sp=0xc0027bb800 pc=0x8b2685 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Splice(0xc04824d500, 0x3, 0x0, 0x5, 0x0, 0x100000, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/splice.go:140 +0x8d7 fp=0xc0027bbaf8 sp=0xc0027bb8f0 pc=0xda5cb7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc04824d500, 0x113, 0x3, 0x0, 0x5, 0x0, 0x100000, 0x0, 0x1, 0x11a8700, ...) pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc0027bbc58 sp=0xc0027bbaf8 pc=0x9d2a1c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc04824d500, 0x113, 0x3, 0x0, 0x5, 0x0, 0x100000, 0x0, 0x100000, 0x0) pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc0027bbce0 sp=0xc0027bbc58 pc=0x9d3be6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc04824d500, 0x113, 0x3, 0x0, 0x5, 0x0, 0x100000, 0x0, 0xdeafae, 0xc011591420) pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc0027bbd40 sp=0xc0027bbce0 pc=0x9d3798 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc04824d500, 0x2, 0xc04824d500) pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc0027bbe10 sp=0xc0027bbd40 pc=0x9d313c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc04824d500, 0x12f8de0, 0x0) pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc0027bbf60 sp=0xc0027bbe10 pc=0x9c7545 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc04824d500, 0x842a) pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc0027bbfd0 sp=0xc0027bbf60 pc=0x9c620f runtime.goexit() src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0027bbfd8 sp=0xc0027bbfd0 pc=0x470681 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:323 +0xfe