Update setup_ubuntu-host_qemu-vm_x86-64-kernel.md
change chown to chmod
diff --git a/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md b/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md
index c91af46..2b13014 100644
--- a/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md
+++ b/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md
@@ -115,7 +115,7 @@
```
cd $IMAGE/
wget https://raw.githubusercontent.com/google/syzkaller/master/tools/create-image.sh -O create-image.sh
-chown +x create-image.sh
+chmod +x create-image.sh
./create-image.sh
```