panic: runtime error: slice bounds out of range [:4] with capacity 0 goroutine 514817 [running]: panic(0x122a140, 0xc01bc405a0) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc082a7d2b8 sp=0xc082a7d1f0 pc=0x437c65 runtime.goPanicSliceAcap(0x4, 0x0) GOROOT/src/runtime/panic.go:106 +0xa5 fp=0xc082a7d300 sp=0xc082a7d2b8 pc=0x4352c5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalBytes(0xc0025d0b40, 0xc01bc40598, 0x8, 0x8, 0x7f22c4874948, 0x0, 0x44) pkg/sentry/fsimpl/fuse/request_response.go:54 +0x2b2 fp=0xc082a7d320 sp=0xc082a7d300 pc=0xf3b352 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalUnsafe(0xc0025d0b40, 0xc01bc40598, 0x8, 0x8, 0xc082a7d3b8, 0x40e318, 0x44) bazel-out/k8-fastbuild-ST-3ea255117c10/bin/pkg/sentry/fsimpl/fuse/fuse_abi_autogen_unsafe.go:30 +0x49 fp=0xc082a7d368 sp=0xc082a7d320 pc=0xf3fe69 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*Response).UnmarshalPayload(0xc082a7d480, 0x14c23d0, 0xc0025d0b40, 0x126e201, 0x1316560) pkg/sentry/fsimpl/fuse/request_response.go:226 +0xb2 fp=0xc082a7d3c8 sp=0xc082a7d368 pc=0xf3b912 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).InitRecv(0xc08855d7a0, 0xc082a7d480, 0x1369a01, 0x1316560, 0xc00016a000) pkg/sentry/fsimpl/fuse/connection_control.go:102 +0x9a fp=0xc082a7d408 sp=0xc082a7d3c8 pc=0xf2e17a gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).asyncCallBack(0xc009476f00, 0x14c52f8, 0xc01bbdc000, 0xc082a7d480, 0x0, 0x1) pkg/sentry/fsimpl/fuse/dev.go:454 +0x106 fp=0xc082a7d448 sp=0xc082a7d408 pc=0xf30486 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).sendResponse(0xc009476f00, 0x14c52f8, 0xc01bbdc000, 0xc004d7c240, 0x0, 0x0) pkg/sentry/fsimpl/fuse/dev.go:417 +0x11e fp=0xc082a7d4d0 sp=0xc082a7d448 pc=0xf3019e gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc009476f00, 0x14c52f8, 0xc01bbdc000, 0x14bf460, 0xc014d6b000, 0x0, 0x0, 0x0, 0x0, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:341 +0x40a fp=0xc082a7d718 sp=0xc082a7d4d0 pc=0xf2f7ea gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc009476f00, 0x14c52f8, 0xc01bbdc000, 0x14bf460, 0xc014d6b000, 0x0, 0x1, 0x20000280, 0x18, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:246 +0x105 fp=0xc082a7d7b8 sp=0xc082a7d718 pc=0xf2f365 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc009476f00, 0x14c52f8, 0xc01bbdc000, 0x14bf460, 0xc014d6b000, 0x0, 0x1, 0x20000280, 0x18, 0x100, ...) pkg/sentry/vfs/file_description.go:657 +0xb4 fp=0xc082a7d850 sp=0xc082a7d7b8 pc=0x759574 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc01bbdc000, 0xc009476f00, 0x14bf460, 0xc014d6b000, 0x0, 0x1, 0x20000280, 0x18, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:348 +0x9b fp=0xc082a7d9e0 sp=0xc082a7d850 pc=0xe732fb gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc01bbdc000, 0x3, 0x20000280, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:317 +0x245 fp=0xc082a7db10 sp=0xc082a7d9e0 pc=0xe72be5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc01bbdc000, 0x1, 0x3, 0x20000280, 0x18, 0x0, 0x0, 0x0, 0x0, 0x131baa0, ...) pkg/sentry/kernel/task_syscall.go:103 +0x13c fp=0xc082a7dc70 sp=0xc082a7db10 pc=0x9f411c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc01bbdc000, 0x1, 0x3, 0x20000280, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc082a7dcf8 sp=0xc082a7dc70 pc=0x9f52c6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc01bbdc000, 0x1, 0x3, 0x20000280, 0x18, 0x0, 0x0, 0x0, 0x14d6608, 0xc01c312240) pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc082a7dd58 sp=0xc082a7dcf8 pc=0x9f4eb8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc01bbdc000, 0x2, 0xc01bbdc000) pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc082a7de28 sp=0xc082a7dd58 pc=0x9f485c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc01bbdc000, 0x1497280, 0x0) pkg/sentry/kernel/task_run.go:254 +0xc27 fp=0xc082a7df68 sp=0xc082a7de28 pc=0x9e9587 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc01bbdc000, 0x5e0f) pkg/sentry/kernel/task_run.go:95 +0x182 fp=0xc082a7dfd0 sp=0xc082a7df68 pc=0x9e84c2 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc082a7dfd8 sp=0xc082a7dfd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:339 +0xfe