panic: runtime error: slice bounds out of range [:4] with capacity 0 goroutine 2742905 [running]: panic(0x1226980, 0xc00728e348) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc02fce72a8 sp=0xc02fce71e0 pc=0x437c65 runtime.goPanicSliceAcap(0x4, 0x0) GOROOT/src/runtime/panic.go:106 +0xa5 fp=0xc02fce72f0 sp=0xc02fce72a8 pc=0x4352c5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalBytes(0xc00385b3b0, 0xc02dac8830, 0x0, 0x0, 0xc014a1cf00, 0x100000000000038, 0x7fdaca9d35a8) pkg/sentry/fsimpl/fuse/request_response.go:50 +0x2e5 fp=0xc02fce7310 sp=0xc02fce72f0 pc=0xf37245 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalUnsafe(0xc00385b3b0, 0xc02dac8830, 0x0, 0x0, 0xc0005dc000, 0x0, 0xc02fce73b8) bazel-out/k8-fastbuild-ST-3ea255117c10/bin/pkg/sentry/fsimpl/fuse/fuse_abi_autogen_unsafe.go:30 +0x49 fp=0xc02fce7358 sp=0xc02fce7310 pc=0xf3bda9 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*Response).UnmarshalPayload(0xc02fce7480, 0x14bd8d0, 0xc00385b3b0, 0x126a401, 0x13126a0) pkg/sentry/fsimpl/fuse/request_response.go:228 +0xb7 fp=0xc02fce73c8 sp=0xc02fce7358 pc=0xf377d7 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).InitRecv(0xc000ce50e0, 0xc02fce7480, 0x1365b01, 0x13126a0, 0xc00016c000) pkg/sentry/fsimpl/fuse/connection_control.go:102 +0x9a fp=0xc02fce7408 sp=0xc02fce73c8 pc=0xf2ab1a gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).asyncCallBack(0xc00aa1d700, 0x14c0798, 0xc004606000, 0xc02fce7480, 0x0, 0x1) pkg/sentry/fsimpl/fuse/dev.go:453 +0x106 fp=0xc02fce7448 sp=0xc02fce7408 pc=0xf2d006 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).sendResponse(0xc00aa1d700, 0x14c0798, 0xc004606000, 0xc02269c080, 0x0, 0x0) pkg/sentry/fsimpl/fuse/dev.go:416 +0x11e fp=0xc02fce74d0 sp=0xc02fce7448 pc=0xf2cd1e gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc00aa1d700, 0x14c0798, 0xc004606000, 0x14bab00, 0xc0174b2000, 0x0, 0x1, 0x20000010, 0x5f, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:341 +0x40a fp=0xc02fce7718 sp=0xc02fce74d0 pc=0xf2c36a gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc00aa1d700, 0x14c0798, 0xc004606000, 0x14bab00, 0xc0174b2000, 0x0, 0x1, 0x20000000, 0x6f, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:247 +0x105 fp=0xc02fce77b8 sp=0xc02fce7718 pc=0xf2bee5 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00aa1d700, 0x14c0798, 0xc004606000, 0x14bab00, 0xc0174b2000, 0x0, 0x1, 0x20000000, 0x6f, 0x100, ...) pkg/sentry/vfs/file_description.go:657 +0xb4 fp=0xc02fce7850 sp=0xc02fce77b8 pc=0x756cf4 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc004606000, 0xc00aa1d700, 0x14bab00, 0xc0174b2000, 0x0, 0x1, 0x20000000, 0x6f, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:348 +0x9b fp=0xc02fce79e0 sp=0xc02fce7850 pc=0xe7053b gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc004606000, 0x3, 0x20000000, 0x6f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:317 +0x245 fp=0xc02fce7b10 sp=0xc02fce79e0 pc=0xe6fe25 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004606000, 0x1, 0x3, 0x20000000, 0x6f, 0x0, 0x0, 0x0, 0x0, 0x1317be0, ...) pkg/sentry/kernel/task_syscall.go:103 +0x13c fp=0xc02fce7c70 sp=0xc02fce7b10 pc=0x9f169c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004606000, 0x1, 0x3, 0x20000000, 0x6f, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc02fce7cf8 sp=0xc02fce7c70 pc=0x9f2846 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc004606000, 0x1, 0x3, 0x20000000, 0x6f, 0x0, 0x0, 0x0, 0x14d19a8, 0xc03af8e240) pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc02fce7d58 sp=0xc02fce7cf8 pc=0x9f2438 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004606000, 0x2, 0xc004606000) pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc02fce7e28 sp=0xc02fce7d58 pc=0x9f1ddc gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc004606000, 0x1492980, 0x0) pkg/sentry/kernel/task_run.go:254 +0xc27 fp=0xc02fce7f68 sp=0xc02fce7e28 pc=0x9e6b67 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004606000, 0x1ef1) pkg/sentry/kernel/task_run.go:95 +0x182 fp=0xc02fce7fd0 sp=0xc02fce7f68 pc=0x9e5aa2 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc02fce7fd8 sp=0xc02fce7fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:342 +0xfe