panic: runtime error: index out of range [3] with length 0 goroutine 122 gp=0xc0004b4fc0 m=20 mp=0xc000581c08 [running]: panic({0x1cc6600?, 0xc0004f2a50?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc0007d52c0 sp=0xc0007d5210 pc=0x478708 runtime.goPanicIndex(0x3, 0x0) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc0007d5300 sp=0xc0007d52c0 pc=0x43a814 encoding/binary.littleEndian.Uint32(...) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/encoding/binary/binary.go:87 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0xc000a17908, {0x7fbb498a1a30?, 0xc0007d5480?}, {0x7fbb498a1a30, 0xc0007ec000}, 0xa, {0xc000a1841c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:2754 +0x7e5 fp=0xc0007d5430 sp=0xc0007d5300 pc=0x114c7e5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0xc000a17908, {0x201c0f8, 0xc00023c8c0}, {0x7fbb498a1a30, 0xc0007ec000}, 0x107, 0xa, {0xc000a1841c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x2e5 fp=0xc0007d5490 sp=0xc0007d5430 pc=0x1144c45 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc00023c8c0, 0xc000a17908, 0x107, 0xa, {0xc000a1841c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:634 +0x608 fp=0xc0007d55b0 sp=0xc0007d5490 pc=0x113bee8 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc000a17908, 0x0?, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7fdbc50ffe58}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x3b5 fp=0xc0007d56c8 sp=0xc0007d55b0 pc=0x1212755 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a17908, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7fdbc50ffe58}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 fp=0xc0007d5960 sp=0xc0007d56c8 pc=0xf52b95 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a17908, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7fdbc50ffe58}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 fp=0xc0007d5a08 sp=0xc0007d5960 pc=0xf549f2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000a17908, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7fdbc50ffe58}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 fp=0xc0007d5a78 sp=0xc0007d5a08 pc=0xf543f4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000a17908) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 fp=0xc0007d5b98 sp=0xc0007d5a78 pc=0xf53f90 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a17908?, 0xc000a17908) pkg/sentry/kernel/task_run.go:269 +0x1fae fp=0xc0007d5e70 sp=0xc0007d5b98 pc=0xf3fece gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a17908, 0xa) pkg/sentry/kernel/task_run.go:97 +0x4fb fp=0xc0007d5fb0 sp=0xc0007d5e70 pc=0xf3d53b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x45 fp=0xc0007d5fe0 sp=0xc0007d5fb0 pc=0xf50965 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc0007d5fe8 sp=0xc0007d5fe0 pc=0x481a81 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 232 pkg/sentry/kernel/task_start.go:412 +0x165