syzbot

panic: runtime error: index out of range [3] with length 0

goroutine 126 gp=0xc000654380 m=16 mp=0xc000182308 [running]:
panic({0x1da8080?, 0xc0007c6738?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000b372c8 sp=0xc000b37218 pc=0x478708
runtime.goPanicIndex(0x3, 0x0)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:115 +0x74 fp=0xc000b37308 sp=0xc000b372c8 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(0xc000d6c008, {0x7f1c0327d7b0?, 0xc000b37480?}, {0x7f1c0327d7b0, 0xc000328400}, 0xa, {0xc000d6cb1c, 0x0, 0x90})
	pkg/sentry/socket/netstack/netstack.go:2754 +0x6b9 fp=0xc000b37430 sp=0xc000b37308 pc=0x120de19
gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0xc000d6c008, {0x20d8038, 0xc000ea2000}, {0x7f1c0327d7b0, 0xc000328400}, 0x107, 0xa, {0xc000d6cb1c, 0x0, 0x90})
	pkg/sentry/socket/netstack/netstack.go:1873 +0x366 fp=0xc000b37490 sp=0xc000b37430 pc=0x1206b26
gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc000ea2000, 0xc000d6c008, 0x107, 0xa, {0xc000d6cb1c, 0x0, 0x90})
	pkg/sentry/socket/netstack/netstack.go:634 +0x6aa fp=0xc000b375b0 sp=0xc000b37490 pc=0x11fc08a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc000d6c008, 0x4af9af?, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/syscalls/linux/sys_socket.go:551 +0x46c fp=0xc000b376e8 sp=0xc000b375b0 pc=0x12cb74c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000d6c008, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc000b37998 sp=0xc000b376e8 pc=0xff6c3f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000d6c008, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc000b37a40 sp=0xc000b37998 pc=0xff8d65
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000d6c008, 0x36, {{0x3}, {0x107}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc000b37ab0 sp=0xc000b37a40 pc=0xff8687
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000d6c008)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc000b37bd0 sp=0xc000b37ab0 pc=0xff81ea
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000d6c008?, 0xc000d6c008)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc000b37e78 sp=0xc000b37bd0 pc=0xfe2a55
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000d6c008, 0xb)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc000b37fb0 sp=0xc000b37e78 pc=0xfdfd7b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:412 +0x45 fp=0xc000b37fe0 sp=0xc000b37fb0 pc=0xff4545
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000b37fe8 sp=0xc000b37fe0 pc=0x481a81
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 308
	pkg/sentry/kernel/task_start.go:412 +0x185