panic: runtime error: slice bounds out of range [:4] with capacity 0 goroutine 1347310 [running]: panic(0x133ec20, 0xc00ca83cc8) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc0132d73c0 sp=0xc0132d72f8 pc=0x437c65 runtime.goPanicSliceAcap(0x4, 0x0) GOROOT/src/runtime/panic.go:106 +0xa5 fp=0xc0132d7408 sp=0xc0132d73c0 pc=0x4352c5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalBytes(0xc0060fb950, 0xc00ca83cc0, 0x8, 0x8, 0x1607338, 0x10000c005b60a80, 0x3fd4e5ead6d0) pkg/sentry/fsimpl/fuse/request_response.go:57 +0x2e5 fp=0xc0132d7428 sp=0xc0132d7408 pc=0x10452e5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalUnsafe(0xc0060fb950, 0xc00ca83cc0, 0x8, 0x8, 0xc000752400, 0x0, 0xc0132d74d0) bazel-out/k8-fastbuild-ST-4c64f0b3d5c7/bin/pkg/sentry/fsimpl/fuse/fuse_abi_autogen_unsafe.go:34 +0x53 fp=0xc0132d7470 sp=0xc0132d7428 pc=0x104a513 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*Response).UnmarshalPayload(0xc0132d7598, 0x1604670, 0xc0060fb950, 0x148e8d8, 0x142ab80) pkg/sentry/fsimpl/fuse/request_response.go:253 +0xee fp=0xc0132d74e0 sp=0xc0132d7470 pc=0x104598e gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).InitRecv(0xc001629e00, 0xc0132d7598, 0xc00049f401, 0x1, 0x1039247) pkg/sentry/fsimpl/fuse/connection_control.go:109 +0xe5 fp=0xc0132d7520 sp=0xc0132d74e0 pc=0x1036bc5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).asyncCallBack(0xc0132eac00, 0x1607338, 0xc005b60a80, 0xc0132d7598, 0x0, 0x1) pkg/sentry/fsimpl/fuse/dev.go:548 +0xdb fp=0xc0132d7560 sp=0xc0132d7520 pc=0x103963b gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).sendResponse(0xc0132eac00, 0x1607338, 0xc005b60a80, 0xc011201d00, 0x0, 0x0) pkg/sentry/fsimpl/fuse/dev.go:505 +0x150 fp=0xc0132d75e8 sp=0xc0132d7560 pc=0x1039310 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc0132eac00, 0x1607338, 0xc005b60a80, 0x1601840, 0xc012bcf000, 0x0, 0x0, 0x0, 0x0, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:411 +0x44a fp=0xc0132d77c0 sp=0xc0132d75e8 pc=0x103886a gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc0132eac00, 0x1607338, 0xc005b60a80, 0x1601840, 0xc012bcf000, 0x0, 0x1, 0x20000400, 0x18, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:294 +0x10a fp=0xc0132d7860 sp=0xc0132d77c0 pc=0x10383aa gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc0132eac00, 0x1607338, 0xc005b60a80, 0x1601840, 0xc012bcf000, 0x0, 0x1, 0x20000400, 0x18, 0x100, ...) pkg/sentry/vfs/file_description.go:748 +0xc3 fp=0xc0132d78f8 sp=0xc0132d7860 pc=0x788ca3 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc005b60a80, 0xc0132eac00, 0x1601840, 0xc012bcf000, 0x0, 0x1, 0x20000400, 0x18, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:430 +0xa5 fp=0xc0132d7a88 sp=0xc0132d78f8 pc=0xf707a5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc005b60a80, 0x3, 0x20000400, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:393 +0x293 fp=0xc0132d7bb8 sp=0xc0132d7a88 pc=0xf6ffb3 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005b60a80, 0x1, 0x3, 0x20000400, 0x18, 0x0, 0x0, 0x0, 0xc000001fa0, 0x14300c0, ...) pkg/sentry/kernel/task_syscall.go:115 +0x199 fp=0xc0132d7c78 sp=0xc0132d7bb8 pc=0xa848f9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005b60a80, 0x1, 0x3, 0x20000400, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:290 +0x70 fp=0xc0132d7d00 sp=0xc0132d7c78 pc=0xa85bd0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc005b60a80, 0x1, 0x3, 0x20000400, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:237 +0xb4 fp=0xc0132d7d60 sp=0xc0132d7d00 pc=0xa856b4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc005b60a80, 0x2, 0xc005b60a80) pkg/sentry/kernel/task_syscall.go:204 +0x198 fp=0xc0132d7e30 sp=0xc0132d7d60 pc=0xa84f98 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc005b60a80, 0x15d9940, 0x0) pkg/sentry/kernel/task_run.go:294 +0xd9a fp=0xc0132d7f68 sp=0xc0132d7e30 pc=0xa77eba gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005b60a80, 0x5c9e) pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc0132d7fd0 sp=0xc0132d7f68 pc=0xa76c79 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc0132d7fd8 sp=0xc0132d7fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:398 +0x116