From 87a1d177bcdf8f04086dcd197f4460d8af4198b6 Mon Sep 17 00:00:00 2001
From: tpa95 <tikhomirovpa95@gmail.com>
Date: Thu, 19 Feb 2026 13:18:20 +0300
Subject: [PATCH] Fix memory leak in EmitGenericParamConstraints Free the
 per-parameter buffers stored in pConstraintsArr and pGPConstraintsArr before
 deleting the pointer arrays. Previously only the outer arrays were deleted,
 leaking the inner allocations for each type parameter.

---
 src/coreclr/ilasm/assembler.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/coreclr/ilasm/assembler.cpp b/src/coreclr/ilasm/assembler.cpp
index 6753343230ec24..aaafa258a5be10 100644
--- a/src/coreclr/ilasm/assembler.cpp
+++ b/src/coreclr/ilasm/assembler.cpp
@@ -2756,6 +2756,12 @@ void Assembler::EmitGenericParamConstraints(int numTyPars, TyParDescr* pTyPars,
         EmitCustomAttributes(tkOwnerOfCA, pGPC->CAList());
     }
 
+    for (paramIndex = 0; paramIndex < numTyPars; paramIndex++)
+    {
+        delete[] pConstraintsArr[paramIndex];
+        delete[] pGPConstraintsArr[paramIndex];
+    }
+    
     delete[] nConstraintsArr;
     delete[] nConstraintIndexArr;
     delete[] pConstraintsArr;