fix(libSceLibcInternal): check null output before path in statvfs

core/libs/prx/libSceLibcInternal/PathStatistics.cpp

@@ -140,7 +140,7 @@ int OpenMetadata(const std::filesystem::path& path, bool directory) {
 }
 
 extern "C" int APS5_VABI statvfs_nid_postfix(const char* path, LibcStatvfs* output) {
-    if (path == nullptr) return Fail(14);
+    if (path == nullptr || output == nullptr) return Fail(14);
     if (*path == '\0') return Fail(2);
     const int saved = errno;
     const auto last = std::string_view(path).back();

core/libs/tests/GuestStatvfs.cpp

@@ -102,6 +102,8 @@ int main() {
     RemovePathAlias_nid_no_patch("/anyps5-statvfs-unavailable");
     Require(statvfs_nid_postfix("/anyps5-statvfs-test/file.txt", nullptr) == -1);
     Require(*__error_nid_postfix() == 14);
+    Require(statvfs_nid_postfix("/anyps5-statvfs-test/missing", nullptr) == -1);
+    Require(*__error_nid_postfix() == 14);
 
     const auto unicodeFile = root / std::filesystem::path(u8"\u65e5.txt");
     {