Author: Zequan Wu
Date: 2024-01-04T12:32:40-05:00
New Revision: 4004f655ceb9623608ba0471aa7037c142956e31

URL: 
https://github.com/llvm/llvm-project/commit/4004f655ceb9623608ba0471aa7037c142956e31
DIFF: 
https://github.com/llvm/llvm-project/commit/4004f655ceb9623608ba0471aa7037c142956e31.diff

LOG: [LLDB][NativePDB] Fix use-after-free error detected by asan.

Added: 
    

Modified: 
    lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp

Removed: 
    


################################################################################
diff  --git a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp 
b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
index 8375010ae3dedd..9234768323e713 100644
--- a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
@@ -2265,7 +2265,8 @@ void SymbolFileNativePDB::BuildParentMap() {
   }
   for (TypeIndex fwd : fwd_keys) {
     TypeIndex full = forward_to_full[fwd];
-    m_parent_types[full] = m_parent_types[fwd];
+    TypeIndex parent_idx = m_parent_types[fwd];
+    m_parent_types[full] = parent_idx;
   }
   for (TypeIndex full : full_keys) {
     TypeIndex fwd = full_to_forward[full];


        
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