panic: runtime error: index out of range [3] with length 0 goroutine 56308 gp=0xc00228dc00 m=64 mp=0xc002cfd508 [running]: panic({0x12b8e20?, 0xc0004f4480?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc0020c2778 sp=0xc0020c26c8 pc=0x4740c8 runtime.goPanicIndex(0x3, 0x0) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc0020c27b8 sp=0xc0020c2778 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?, 0x2113720?}, {0x7f5d948571a8?, 0xc002176800?}, 0xc00270cd20?, {0xc0004d109c?, 0xc00270cd90?, 0x0?}) pkg/sentry/socket/netstack/netstack.go:2754 +0x1e5 fp=0xc0020c2898 sp=0xc0020c27b8 pc=0xba51c5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x46e47a?, {0x15df0d8?, 0xc001c10000?}, {0x7f5d948571a8?, 0xc002176800?}, 0x0?, 0xc0020c2988?, {0xc0004d109c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x148 fp=0xc0020c28f0 sp=0xc0020c2898 pc=0xba2468 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc001c10000, 0x139a1a0?, 0xc0004d109c?, 0xffffffff?, {0xc0004d109c, 0x0?, 0xc0019dd200?}) pkg/sentry/socket/netstack/netstack.go:634 +0x225 fp=0xc0020c2998 sp=0xc0020c28f0 pc=0xb9c8e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc0004d0588, 0xc0020c2b10?, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x246 fp=0xc0020c2a78 sp=0xc0020c2998 pc=0xc2a546 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0004d0588, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc0020c2ca8 sp=0xc0020c2a78 pc=0xa777f7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0004d0588, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc0020c2d00 sp=0xc0020c2ca8 pc=0xa78965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0004d0588, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc0020c2d50 sp=0xc0020c2d00 pc=0xa78665 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc002da35f0?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc0020c2e28 sp=0xc0020c2d50 pc=0xa783e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002814900?, 0xc0004d0588) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc0020c2f30 sp=0xc0020c2e28 pc=0xa6dbd7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0004d0588, 0x2f78) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc0020c2fc0 sp=0xc0020c2f30 pc=0xa6c634 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc0020c2fe0 sp=0xc0020c2fc0 pc=0xa76205 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc0020c2fe8 sp=0xc0020c2fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 56168 pkg/sentry/kernel/task_start.go:412 +0xc5