diff --git a/userspace/libraries/LibC/unistd.cpp b/userspace/libraries/LibC/unistd.cpp
index f14dbaab..09fbbfcb 100644
--- a/userspace/libraries/LibC/unistd.cpp
+++ b/userspace/libraries/LibC/unistd.cpp
@@ -1,6 +1,5 @@
 #include <BAN/Assert.h>
 #include <BAN/Debug.h>
-#include <BAN/ScopeGuard.h>
 #include <BAN/StringView.h>
 
 #include <LibELF/AuxiliaryVector.h>
@@ -444,13 +443,15 @@ static int exec_impl_shebang(FILE* fp, const char* pathname, char* const* argv,
 		fclose(fp);
 		return -1;
 	}
-	BAN::ScopeGuard _1([buffer] { free(buffer); });
 
-	buffer = fgets(buffer, buffer_len, fp);
-	fclose(fp);
-
-	if (buffer == nullptr)
+	if (fgets(buffer, buffer_len, fp) == nullptr)
+	{
+		free(buffer);
+		fclose(fp);
 		return -1;
+	}
+
+	fclose(fp);
 
 	const auto sv_trim_whitespace =
 		[](BAN::StringView sv) -> BAN::StringView
@@ -465,6 +466,7 @@ static int exec_impl_shebang(FILE* fp, const char* pathname, char* const* argv,
 	BAN::StringView buffer_sv = buffer;
 	if (buffer_sv.back() != '\n')
 	{
+		free(buffer);
 		errno = ENOEXEC;
 		return -1;
 	}
@@ -481,6 +483,7 @@ static int exec_impl_shebang(FILE* fp, const char* pathname, char* const* argv,
 
 	if (interpreter.empty())
 	{
+		free(buffer);
 		errno = ENOEXEC;
 		return -1;
 	}
@@ -495,10 +498,12 @@ static int exec_impl_shebang(FILE* fp, const char* pathname, char* const* argv,
 		old_argc++;
 
 	const size_t extra_args = 1 + !argument.empty();
-	char** new_argv = static_cast<char**>(malloc((extra_args + old_argc + 1) * sizeof(char*)));;
+	char** new_argv = static_cast<char**>(malloc((extra_args + old_argc + 1) * sizeof(char*)));
 	if (new_argv == nullptr)
+	{
+		free(buffer);
 		return -1;
-	BAN::ScopeGuard _2([new_argv] { free(new_argv); });
+	}
 
 	new_argv[0] = const_cast<char*>(pathname);
 	if (!argument.empty())
@@ -509,7 +514,10 @@ static int exec_impl_shebang(FILE* fp, const char* pathname, char* const* argv,
 		new_argv[extra_args + i] = argv[i];
 	new_argv[extra_args + old_argc] = nullptr;
 
-	return exec_impl(interpreter.data(), new_argv, envp, true, shebang_depth + 1);
+	int result = exec_impl(interpreter.data(), new_argv, envp, true, shebang_depth + 1);
+	free(new_argv);
+	free(buffer);
+	return result;
 }
 
 static int execl_impl(const char* pathname, const char* arg0, va_list ap, bool has_env, bool do_path_resolution)