panic: runtime error: slice bounds out of range [9:7] goroutine 2831880 [running]: panic(0x1a10f40, 0xc0188ce240) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc1824e2e08 sp=0xc1824e2d40 pc=0x43a6c5 runtime.goPanicSliceB(0x9, 0x7) GOROOT/src/runtime/panic.go:116 +0xa5 fp=0xc1824e2e50 sp=0xc1824e2e08 pc=0x437ea5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).writeLocked(0xc00288ec00, 0x1dcd598, 0xc012f54a80, 0x1dc7780, 0xc009dae000, 0x0, 0x1, 0x200004c0, 0x8, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:312 +0x109c fp=0xc1824e3140 sp=0xc1824e2e50 pc=0x15892dc gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Write(0xc00288ec00, 0x1dcd598, 0xc012f54a80, 0x1dc7780, 0xc009dae000, 0x0, 0x1, 0x200004c0, 0x8, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:257 +0x165 fp=0xc1824e3248 sp=0xc1824e3140 pc=0x15881c5 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00288ec00, 0x1dcd598, 0xc012f54a80, 0x1dc7780, 0xc009dae000, 0x0, 0x1, 0x200004c0, 0x8, 0x100, ...) pkg/sentry/vfs/file_description.go:657 +0x131 fp=0xc1824e3328 sp=0xc1824e3248 pc=0x961651 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write(0xc012f54a80, 0xc00288ec00, 0x1dc7780, 0xc009dae000, 0x0, 0x1, 0x200004c0, 0x8, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:348 +0xee fp=0xc1824e3570 sp=0xc1824e3328 pc=0x146adee gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Writev(0xc012f54a80, 0x3, 0x20000a40, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:342 +0x2ff fp=0xc1824e3728 sp=0xc1824e3570 pc=0x146ab1f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc012f54a80, 0x14, 0x3, 0x20000a40, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/kernel/task_syscall.go:103 +0x195 fp=0xc1824e39b8 sp=0xc1824e3728 pc=0xd8cc75 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc012f54a80, 0x14, 0x3, 0x20000a40, 0x1, 0x0, 0x0, 0x0, 0xc012f5535f, 0xc012f54a80) pkg/sentry/kernel/task_syscall.go:238 +0xb4 fp=0xc1824e3a90 sp=0xc1824e39b8 pc=0xd8e694 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc012f54a80, 0x14, 0x3, 0x20000a40, 0x1, 0x0, 0x0, 0x0, 0x1ffffffff, 0xc000000000) pkg/sentry/kernel/task_syscall.go:198 +0x10f fp=0xc1824e3b38 sp=0xc1824e3a90 pc=0xd8df8f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc012f54a80, 0x2, 0xc012f54a80) pkg/sentry/kernel/task_syscall.go:173 +0x214 fp=0xc1824e3ca8 sp=0xc1824e3b38 pc=0xd8d714 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc012f54a80, 0x1d9f2c0, 0x0) pkg/sentry/kernel/task_run.go:254 +0x1287 fp=0xc1824e3ed8 sp=0xc1824e3ca8 pc=0xd79947 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc012f54a80, 0xef5d) pkg/sentry/kernel/task_run.go:95 +0x353 fp=0xc1824e3fd0 sp=0xc1824e3ed8 pc=0xd77ef3 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc1824e3fd8 sp=0xc1824e3fd0 pc=0x477541 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:342 +0x1a5