Fix escape sequence parsing to reject invalid control character escapes

czjaso · czjaso · commit eebe8bc5c3b2 · 2025-12-02T12:22:09.000-08:00
diff --git a/source/core_json.c b/source/core_json.c
@@ -477,14 +477,6 @@ static bool skipEscape( const char * buf,
                 break;
 
             default:
-
-                /* a control character: (NUL,SPACE) */
-                if( iscntrl_( c ) )
-                {
-                    i += 2U;
-                    ret = true;
-                }
-
                 break;
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -477,14 +477,6 @@ static bool skipEscape( const char * buf,`
`477`	`477`	`break;`
`478`	`478`
`479`	`479`	`default:`
`480`		`-`
`481`		`- /* a control character: (NUL,SPACE) */`
`482`		`- if( iscntrl_( c ) )`
`483`		`- {`
`484`		`- i += 2U;`
`485`		`- ret = true;`
`486`		`- }`
`487`		`-`
`488`	`480`	`break;`
`489`	`481`	`}`
`490`	`482`	`}`