panic: runtime error: slice bounds out of range [12:4] goroutine 231110 [running]: panic(0x133ec40, 0xc000b41c50) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc0098835a0 sp=0xc0098834d8 pc=0x437c65 runtime.goPanicSliceB(0xc, 0x4) GOROOT/src/runtime/panic.go:116 +0xa5 fp=0xc0098835e8 sp=0xc0098835a0 pc=0x435445 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc0126cc100, 0x1607478, 0xc012e96a80, 0x1601980, 0xc012932000, 0x0, 0x1, 0x20000080, 0x10, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:376 +0xae5 fp=0xc0098837c0 sp=0xc0098835e8 pc=0x1038f65 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc0126cc100, 0x1607478, 0xc012e96a80, 0x1601980, 0xc012932000, 0x0, 0x1, 0x20000080, 0x10, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:305 +0x10a fp=0xc009883860 sp=0xc0098837c0 pc=0x103840a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc0126cc100, 0x1607478, 0xc012e96a80, 0x1601980, 0xc012932000, 0x0, 0x1, 0x20000080, 0x10, 0x100, ...) pkg/sentry/vfs/file_description.go:748 +0xc3 fp=0xc0098838f8 sp=0xc009883860 pc=0x788ca3 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc012e96a80, 0xc0126cc100, 0x1601980, 0xc012932000, 0x0, 0x1, 0x20000080, 0x10, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:430 +0xa5 fp=0xc009883a88 sp=0xc0098838f8 pc=0xf70425 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write(0xc012e96a80, 0x3, 0x20000080, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:393 +0x293 fp=0xc009883bb8 sp=0xc009883a88 pc=0xf6fc33 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc012e96a80, 0x1, 0x3, 0x20000080, 0x10, 0x0, 0x0, 0x0, 0x0, 0x14300e0, ...) pkg/sentry/kernel/task_syscall.go:115 +0x199 fp=0xc009883c78 sp=0xc009883bb8 pc=0xa84579 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc012e96a80, 0x1, 0x3, 0x20000080, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:290 +0x70 fp=0xc009883d00 sp=0xc009883c78 pc=0xa85850 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc012e96a80, 0x1, 0x3, 0x20000080, 0x10, 0x0, 0x0, 0x0, 0xc012e90410, 0x1618688) pkg/sentry/kernel/task_syscall.go:237 +0xb4 fp=0xc009883d60 sp=0xc009883d00 pc=0xa85334 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc012e96a80, 0x2, 0xc012e96a80) pkg/sentry/kernel/task_syscall.go:204 +0x198 fp=0xc009883e30 sp=0xc009883d60 pc=0xa84c18 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc012e96a80, 0x15d9a80, 0x0) pkg/sentry/kernel/task_run.go:294 +0xd9a fp=0xc009883f68 sp=0xc009883e30 pc=0xa77b3a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc012e96a80, 0x25b1) pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc009883fd0 sp=0xc009883f68 pc=0xa768f9 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc009883fd8 sp=0xc009883fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:398 +0x116