panic: runtime error: index out of range [3] with length 0 goroutine 307 gp=0xc000b0c380 m=3 mp=0xc00013ce08 [running]: panic({0x13dd560?, 0xc0007046f0?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000861760 sp=0xc0008616b0 pc=0x4740c8 runtime.goPanicIndex(0x3, 0x0) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc0008617a0 sp=0xc000861760 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(0x7fbc81ccc9e0?, {0xc0008618d8?, 0x40e7ff?}, {0x7fbc81ccc9e0?, 0xc000a42000?}, 0x1?, {0xc0009fcb1c?, 0xc0001e7180?, 0xc0009c0f30?}) pkg/sentry/socket/netstack/netstack.go:2788 +0x2d7 fp=0xc000861890 sp=0xc0008617a0 pc=0xc76a57 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1000300000090?, {0x1730858?, 0xc0001e7180?}, {0x7fbc81ccc9e0?, 0xc000a42000?}, 0xc00066d940?, 0xc000730190?, {0xc0009fcb1c, 0x0, 0x90}) pkg/sentry/socket/netstack/netstack.go:1896 +0x1b1 fp=0xc0008618e8 sp=0xc000861890 pc=0xc72ab1 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc0001e7180, 0xc0009fc008?, 0x107?, 0xc?, {0xc0009fcb1c, 0x0?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x265 fp=0xc000861998 sp=0xc0008618e8 pc=0xc6b7a5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc0009fc008, 0xc000861ad0?, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x7f8a2ccf8e58}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x2f5 fp=0xc000861a78 sp=0xc000861998 pc=0xcff8f5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0009fc008, 0x36, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x7f8a2ccf8e58}}) pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000861ca8 sp=0xc000861a78 pc=0xb1ec4b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0009fc008, 0x36, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x7f8a2ccf8e58}}) pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000861d00 sp=0xc000861ca8 pc=0xb201ee gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0009fc008, 0x36, {{0x3}, {0x107}, {0xc}, {0x0}, {0x0}, {0x7f8a2ccf8e58}}) pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000861d50 sp=0xc000861d00 pc=0xb1fd9d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00066ea90?) pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000861e28 sp=0xc000861d50 pc=0xb1fa89 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000262ea0?, 0xc0009fc008) pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000861f38 sp=0xc000861e28 pc=0xb13185 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0009fc008, 0xb) pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000861fc0 sp=0xc000861f38 pc=0xb1179d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc000861fe0 sp=0xc000861fc0 pc=0xb1d1c5 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000861fe8 sp=0xc000861fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 121 pkg/sentry/kernel/task_start.go:412 +0xd9