From f949f1e88d0ca048d9edeb7a772d2f99448c9e51 Mon Sep 17 00:00:00 2001
From: smallmodel <15067410+smallmodel@users.noreply.github.com>
Date: Thu, 7 Sep 2023 19:31:17 +0200
Subject: [PATCH] Fixed offset of block in `Free()` with `_DEBUG_MEMBLOCK`

---
 code/qcommon/mem_blockalloc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/qcommon/mem_blockalloc.h b/code/qcommon/mem_blockalloc.h
index 0e372fbe..c1659336 100644
--- a/code/qcommon/mem_blockalloc.h
+++ b/code/qcommon/mem_blockalloc.h
@@ -342,7 +342,7 @@ template<typename a, size_t b>
 void MEM_BlockAlloc<a, b>::Free(void *ptr) noexcept
 {
 #if _DEBUG_MEMBLOCK
-    block_s<a, b> *block = (block_s<a, b> *)ptr;
+    block_t *block = (block_t*)ptr - offsetof(block_t, data);
 
     LL_SafeRemoveRoot(m_Block, block, next_block, prev_block);