MDEV-26826 fixup: clang++-13 -Wfree-nonheap-object

storage/innobase/buf/buf0buf.cc

@@ -3263,7 +3263,7 @@ static buf_block_t* buf_page_create_low(page_id_t page_id, ulint zip_size,
       free_block->page.set_state(BUF_BLOCK_FILE_PAGE);
       buf_unzip_LRU_add_block(free_block, FALSE);
       hash_lock.unlock();
-      buf_page_free_descriptor(&block->page);
+      buf_page_free_descriptor(reinterpret_cast<buf_page_t*>(block));
       block= free_block;
       buf_block_buf_fix_inc(block);
       mtr_memo_push(mtr, block, MTR_MEMO_PAGE_X_FIX);