panic: runtime error: index out of range [3] with length 0 goroutine 322 gp=0xc00079e540 m=15 mp=0xc000181c08 [running]: panic({0x12b8e20?, 0xc0002b2030?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc0005dd778 sp=0xc0005dd6c8 pc=0x4740c8 runtime.goPanicIndex(0x3, 0x0) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc0005dd7b8 sp=0xc0005dd778 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(0x7f96724f3098?, {0xc0005dd8e0?, 0x40e7ff?}, {0x7f96724f3098?, 0xc00026a200?}, 0xa2f101?, {0xc0007bab1c?, 0x3?, 0xc000666000?}) pkg/sentry/socket/netstack/netstack.go:2754 +0x1e5 fp=0xc0005dd898 sp=0xc0005dd7b8 pc=0xba51c5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x46e47a?, {0x15df0d8?, 0xc000666000?}, {0x7f96724f3098?, 0xc00026a200?}, 0xa3e9c8?, 0xc0005dd988?, {0xc0007bab1c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x148 fp=0xc0005dd8f0 sp=0xc0005dd898 pc=0xba2468 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc000666000, 0xc0007ba008?, 0x107?, 0xa?, {0xc0007bab1c, 0x0?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x225 fp=0xc0005dd998 sp=0xc0005dd8f0 pc=0xb9c8e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc0007ba008, 0x300000002?, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7ea425474e58}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x246 fp=0xc0005dda78 sp=0xc0005dd998 pc=0xc2a546 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0007ba008, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7ea425474e58}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc0005ddca8 sp=0xc0005dda78 pc=0xa777f7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0007ba008, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7ea425474e58}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc0005ddd00 sp=0xc0005ddca8 pc=0xa78965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0007ba008, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x7ea425474e58}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc0005ddd50 sp=0xc0005ddd00 pc=0xa78665 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0007be000?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc0005dde28 sp=0xc0005ddd50 pc=0xa783e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00082c360?, 0xc0007ba008) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc0005ddf30 sp=0xc0005dde28 pc=0xa6dbd7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0007ba008, 0xe) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc0005ddfc0 sp=0xc0005ddf30 pc=0xa6c634 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc0005ddfe0 sp=0xc0005ddfc0 pc=0xa76205 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc0005ddfe8 sp=0xc0005ddfe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 308 pkg/sentry/kernel/task_start.go:412 +0xc5