panic: runtime error: index out of range [3] with length 0 goroutine 359648 gp=0xc00342cc40 m=32 mp=0xc002b8a008 [running]: panic({0x12b9e20?, 0xc0006622d0?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc003ba5768 sp=0xc003ba56b8 pc=0x4740c8 runtime.goPanicIndex(0x3, 0x0) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc003ba57a8 sp=0xc003ba5768 pc=0x438b74 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(0x0?, {0x0?, 0x2115740?}, {0x7f1e707aa828?, 0xc002003c08?}, 0xc002c96cb0?, {0xc00437909c?, 0xc002c96d20?, 0x0?}) pkg/sentry/socket/netstack/netstack.go:2788 +0x265 fp=0xc003ba5898 sp=0xc003ba57a8 pc=0xba61c5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0xc004378588?, {0x15e04f8?, 0xc0024bc280?}, {0x7f1e707aa828?, 0xc002003c08?}, 0x0?, 0xc003ba5988?, {0xc00437909c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:1896 +0x148 fp=0xc003ba58f0 sp=0xc003ba5898 pc=0xba33e8 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc0024bc280, 0x562400000004?, 0xc00437909c?, 0xffffffff?, {0xc00437909c, 0x0?, 0xc001084960?}) pkg/sentry/socket/netstack/netstack.go:634 +0x225 fp=0xc003ba5998 sp=0xc003ba58f0 pc=0xb9d5a5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc004378588, 0x5624972f8000?, {{0x4}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x246 fp=0xc003ba5a78 sp=0xc003ba5998 pc=0xc2b8c6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004378588, 0x36, {{0x4}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc003ba5ca8 sp=0xc003ba5a78 pc=0xa77877 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004378588, 0x36, {{0x4}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc003ba5d00 sp=0xc003ba5ca8 pc=0xa789e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc004378588, 0x36, {{0x4}, {0x107}, {0xc}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc003ba5d50 sp=0xc003ba5d00 pc=0xa786e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0056362c0?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc003ba5e28 sp=0xc003ba5d50 pc=0xa78465 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001bf9440?, 0xc004378588) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc003ba5f30 sp=0xc003ba5e28 pc=0xa6dc57 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004378588, 0xb90d) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc003ba5fc0 sp=0xc003ba5f30 pc=0xa6c6b4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc003ba5fe0 sp=0xc003ba5fc0 pc=0xa76285 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc003ba5fe8 sp=0xc003ba5fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 359795 pkg/sentry/kernel/task_start.go:412 +0xc5