panic: runtime error: slice bounds out of range [:4] with capacity 0 goroutine 355047 [running]: panic({0x123c460, 0xc00715b248}) GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc00232f4a8 sp=0xc00232f3e8 pc=0x4351c8 runtime.goPanicSliceAcap(0x4, 0x0) GOROOT/src/runtime/panic.go:108 +0x75 fp=0xc00232f4e8 sp=0xc00232f4a8 pc=0x4327d5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalBytes(0x7f8a36e35440, {0xc00715b240, 0x44, 0x7f8aaa8eb498}) pkg/sentry/fsimpl/fuse/request_response.go:54 +0x2bf fp=0xc00232f508 sp=0xc00232f4e8 pc=0xf9905f gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fuseInitRes).UnmarshalUnsafe(0xc001004c80, {0xc00715b240, 0xc089ef5c90, 0xc00232f578}) bazel-out/k8-fastbuild-ST-3ea255117c10/bin/pkg/sentry/fsimpl/fuse/fuse_abi_autogen_unsafe.go:30 +0x28 fp=0xc00232f538 sp=0xc00232f508 pc=0xf9d168 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*Response).UnmarshalPayload(0xc00232f640, {0x14ef4e0, 0xc001004c80}) pkg/sentry/fsimpl/fuse/request_response.go:226 +0xcc fp=0xc00232f588 sp=0xc00232f538 pc=0xf9972c gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).InitRecv(0x14f87b0, 0xc00232f640, 0x0) pkg/sentry/fsimpl/fuse/connection_control.go:102 +0x113 fp=0xc00232f5c8 sp=0xc00232f588 pc=0xf8b2d3 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).asyncCallBack(0xc0003d7800, {0x14f87b0, 0xc0884b5500}, 0xc00232f640) pkg/sentry/fsimpl/fuse/dev.go:454 +0xb3 fp=0xc00232f5f8 sp=0xc00232f5c8 pc=0xf8daf3 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).sendResponse(0xc0003d7800, {0x14f87b0, 0xc0884b5500}, 0xc08fefbb00) pkg/sentry/fsimpl/fuse/dev.go:417 +0x165 fp=0xc00232f688 sp=0xc00232f5f8 pc=0xf8d785 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc0003d7800, {0x14f87b0, 0xc0884b5500}, {{0x14ecf78, 0xc0889a7000}, {0x0, 0x0, 0x0, 0x0}, {0x0, ...}}, ...) pkg/sentry/fsimpl/fuse/dev.go:341 +0x8f0 fp=0xc00232f840 sp=0xc00232f688 pc=0xf8d210 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc0003d7800, {0x14f87b0, 0xc0884b5500}, {{0x14ecf78, 0xc0889a7000}, {0x0, 0x1, 0x20000000, 0x18}, {0x0, ...}}, ...) pkg/sentry/fsimpl/fuse/dev.go:246 +0x113 fp=0xc00232f8e8 sp=0xc00232f840 pc=0xf8c813 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc0003d7800, {0x14f87b0, 0xc0884b5500}, {{0x14ecf78, 0xc0889a7000}, {0x0, 0x1, 0x20000000, 0x18}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:657 +0xa5 fp=0xc00232f968 sp=0xc00232f8e8 pc=0x719b65 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0x43fcb1, 0xc0003d7800, {{0x14ecf78, 0xc0889a7000}, {0x0, 0x1, 0x20000000, 0x18}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:348 +0x8e fp=0xc00232fab8 sp=0xc00232f968 pc=0xed51ee gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc0884b5500, {{0x3}, {0x20000000}, {0x18}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/read_write.go:317 +0x265 fp=0xc00232fbf8 sp=0xc00232fab8 pc=0xed49c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0884b5500, 0x1, {{0x3}, {0x20000000}, {0x18}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:103 +0x2d7 fp=0xc00232fca8 sp=0xc00232fbf8 pc=0x9f1817 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0884b5500, 0xf33c60, {{0x3}, {0x20000000}, {0x18}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:238 +0x57 fp=0xc00232fd18 sp=0xc00232fca8 pc=0x9f25d7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc08629e9c0, 0x150bb08, {{0x3}, {0x20000000}, {0x18}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:198 +0x85 fp=0xc00232fd78 sp=0xc00232fd18 pc=0x9f21a5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0884b5500) pkg/sentry/kernel/task_syscall.go:173 +0x38e fp=0xc00232fe40 sp=0xc00232fd78 pc=0x9f1e6e gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc085a06b00, 0xc0884b5500) pkg/sentry/kernel/task_run.go:254 +0x111b fp=0xc00232ff60 sp=0xc00232fe40 pc=0x9e4f9b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0884b5500, 0x1af9) pkg/sentry/kernel/task_run.go:95 +0x1ec fp=0xc00232ffc0 sp=0xc00232ff60 pc=0x9e380c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·230() pkg/sentry/kernel/task_start.go:339 +0x2a fp=0xc00232ffe0 sp=0xc00232ffc0 pc=0x9f018a runtime.goexit() src/runtime/asm_amd64.s:1581 +0x1 fp=0xc00232ffe8 sp=0xc00232ffe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:339 +0x106