panic: Unknown error: header is malformed goroutine 546 [running]: panic(0xfd2300, 0xc000552000) GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc0001bf528 sp=0xc0001bf470 pc=0x437110 gvisor.dev/gvisor/pkg/syserr.TranslateNetstackError(...) pkg/syserr/netstack.go:115 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).SendMsg(0xc0002d81d0, 0xc000766a80, 0x1322d00, 0xc0005a4000, 0xc0004888e0, 0x2, 0x0, 0x10011, 0x100, 0xc00060b190, ...) pkg/sentry/socket/netstack/netstack.go:2921 +0xf06 fp=0xc0001bf818 sp=0xc0001bf528 pc=0xb2f806 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.sendSingleMsg(0xc000766a80, 0x7fb7c64fe708, 0xc0002d8160, 0xc0002d8160, 0x200002c0, 0x0, 0x20000000, 0x3e, 0x7fffffff0058) pkg/sentry/syscalls/linux/vfs2/socket.go:1051 +0x3f5 fp=0xc0001bfa58 sp=0xc0001bf818 pc=0xda42d5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.SendMsg(0xc000766a80, 0x3, 0x200002c0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/socket.go:929 +0x225 fp=0xc0001bfaf8 sp=0xc0001bfa58 pc=0xda36a5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000766a80, 0x2e, 0x3, 0x200002c0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x11a9880, ...) pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc0001bfc58 sp=0xc0001bfaf8 pc=0x9d2cbc gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000766a80, 0x2e, 0x3, 0x200002c0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1) pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc0001bfce0 sp=0xc0001bfc58 pc=0x9d3e86 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000766a80, 0x2e, 0x3, 0x200002c0, 0x0, 0x0, 0x1, 0x1, 0xdeac25, 0xc0005dc528) pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc0001bfd40 sp=0xc0001bfce0 pc=0x9d3a38 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000766a80, 0x2, 0xc000766a80) pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc0001bfe10 sp=0xc0001bfd40 pc=0x9d33dc gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000766a80, 0x12fa0c0, 0x0) pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc0001bff60 sp=0xc0001bfe10 pc=0x9c77e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000766a80, 0xd) pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc0001bffd0 sp=0xc0001bff60 pc=0x9c64af runtime.goexit() src/runtime/asm_amd64.s:1374 +0x1 fp=0xc0001bffd8 sp=0xc0001bffd0 pc=0x470681 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:323 +0xfe