From 4cc746cfd430c45107cdbe355db65c828614a8a1 Mon Sep 17 00:00:00 2001
From: sabdenovch <sabdenovch@yandex-team.com>
Date: Mon, 20 Apr 2026 10:26:29 +0300
Subject: Poison memory in allocation holders
 commit_hash:0912d7a08b0b2ae26b6298108a9fdd57cabbc77a

---
 library/cpp/yt/memory/ref.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'library/cpp/yt')

diff --git a/library/cpp/yt/memory/ref.cpp b/library/cpp/yt/memory/ref.cpp
index 5a6ca1e3373..1743680b581 100644
--- a/library/cpp/yt/memory/ref.cpp
+++ b/library/cpp/yt/memory/ref.cpp
@@ -3,6 +3,7 @@
 #include "blob.h"
 
 #include <library/cpp/yt/malloc/malloc.h>
+#include <library/cpp/yt/memory/poison.h>
 
 #include <library/cpp/yt/misc/port.h>
 
@@ -99,6 +100,7 @@ class TAllocationHolderBase
 public:
     ~TAllocationHolderBase()
     {
+        PoisonFreedMemory(GetRef());
 #ifdef YT_ENABLE_REF_COUNTED_TRACKING
         TRefCountedTrackerFacade::FreeTagInstance(Cookie_);
         TRefCountedTrackerFacade::FreeSpace(Cookie_, Size_);
@@ -129,6 +131,8 @@ protected:
 #endif
         if (options.InitializeStorage) {
             ::memset(static_cast<TDerived*>(this)->GetBegin(), 0, Size_);
+        } else {
+            PoisonUninitializedMemory(GetRef());
         }
 #ifdef YT_ENABLE_REF_COUNTED_TRACKING
         TRefCountedTrackerFacade::AllocateTagInstance(Cookie_);
-- 
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