[NaCl SDK] nacl_io: Fix use-after-free bug in html5fs

native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc

Index: native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc b/native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc
index 100fb113b6bfecaef3b2b0dca3f2d59d55b64dfa..226c064d5004ac4df46ef5c58c06bb9f4c9a9948 100644
--- a/native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc
+++ b/native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc
@@ -143,7 +143,8 @@ Error FuseFs::Unlink(const Path& path) {
     return ENOSYS;
   }
 
-  int result = fuse_ops_->unlink(path.Join().c_str());
+  std::string path_str = path.Join();
+  int result = fuse_ops_->unlink(path_str.c_str());
   if (result < 0)
     return -result;
 
@@ -156,7 +157,8 @@ Error FuseFs::Mkdir(const Path& path, int perm) {
     return ENOSYS;
   }
 
-  int result = fuse_ops_->mkdir(path.Join().c_str(), perm);
+  std::string path_str = path.Join();
+  int result = fuse_ops_->mkdir(path_str.c_str(), perm);
   if (result < 0)
     return -result;
 
@@ -169,7 +171,8 @@ Error FuseFs::Rmdir(const Path& path) {
     return ENOSYS;
   }
 
-  int result = fuse_ops_->rmdir(path.Join().c_str());
+  std::string path_str = path.Join();
+  int result = fuse_ops_->rmdir(path_str.c_str());
   if (result < 0)
     return -result;
 
@@ -202,7 +205,9 @@ Error FuseFs::Rename(const Path& path, const Path& newpath) {
     return ENOSYS;
   }
 
-  int result = fuse_ops_->rename(path.Join().c_str(), newpath.Join().c_str());
+  std::string path_str = path.Join();
+  std::string newpath_str = newpath.Join();
+  int result = fuse_ops_->rename(path_str.c_str(), newpath_str.c_str());
   if (result < 0)
     return -result;