update changelog and improve the is_quoted function

Signed-off-by: Nguyen Dinh Phi <[email protected]>

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Upcoming Release
 ## Changed
-- [[#148](https://github.com/rust-vmm/linux-loader/pull/148)] Fixing kernel commandline parameter validation
+- [[#148](https://github.com/rust-vmm/linux-loader/pull/148)] Fixing kernel commandline parameter validation.
+  This change allows parameter values containing spaces in the middle, provided they are enclosed in quotes. However, 
+  strings with quotes in the middle will no longer be accepted as valid parameter values.
 
 # [v0.13.0]
 

src/cmdline/mod.rs

@@ -89,6 +89,10 @@ fn valid_str(s: &str) -> Result<()> {
 }
 
 fn is_quoted(s: &str) -> bool {
+    if s.len() < 2 {
+        return false;
+    }
+
     if let Some(first_char) = s.chars().next() {
         if let Some(last_char) = s.chars().last() {
             return first_char == '"' && last_char == '"';