panic: runtime error: index out of range [3] with length 0 goroutine 259735 gp=0xc001d6d880 m=69 mp=0xc005b9a008 [running]: panic({0x1cc8140?, 0xc000518870?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000999250 sp=0xc0009991a0 pc=0x478708 runtime.goPanicIndex(0x3, 0x0) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc000999290 sp=0xc000999250 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(0xc003a6a008, {0xc000999458?, 0xc000999480?}, {0x7f75e9c39430, 0xc002f16000}, 0xc, {0xc003a6ab1c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:2788 +0x985 fp=0xc000999430 sp=0xc000999290 pc=0x114de65 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0xc003a6a008, {0x201dff8, 0xc002ba8280}, {0x7f75e9c39430, 0xc002f16000}, 0x107, 0xc, {0xc003a6ab1c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:1896 +0x2e5 fp=0xc000999490 sp=0xc000999430 pc=0x1146125 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc002ba8280, 0xc003a6a008, 0x107, 0xc, {0xc003a6ab1c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:634 +0x608 fp=0xc0009995b0 sp=0xc000999490 pc=0x113cfe8 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc003a6a008, 0x0?, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x3b5 fp=0xc0009996c8 sp=0xc0009995b0 pc=0x1214295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003a6a008, 0x36, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 fp=0xc000999960 sp=0xc0009996c8 pc=0xf52cb5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003a6a008, 0x36, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 fp=0xc000999a08 sp=0xc000999960 pc=0xf54b12 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc003a6a008, 0x36, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 fp=0xc000999a78 sp=0xc000999a08 pc=0xf54514 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003a6a008) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 fp=0xc000999b98 sp=0xc000999a78 pc=0xf540b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc003a6a008?, 0xc003a6a008) pkg/sentry/kernel/task_run.go:269 +0x1fae fp=0xc000999e70 sp=0xc000999b98 pc=0xf3ffee gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003a6a008, 0xde12) pkg/sentry/kernel/task_run.go:97 +0x4fb fp=0xc000999fb0 sp=0xc000999e70 pc=0xf3d65b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x45 fp=0xc000999fe0 sp=0xc000999fb0 pc=0xf50a85 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000999fe8 sp=0xc000999fe0 pc=0x481a81 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 259974 pkg/sentry/kernel/task_start.go:412 +0x165