[compiler-rt] [scudo] Avoid accessing inaccessible pages in unmap() in secondary (PR #102367)

[via llvm-commits]

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@@ -823,7 +823,11 @@ void MapAllocator<Config>::deallocate(const Options &Options, void *Ptr)
     Cache.store(Options, H->CommitBase, H->CommitSize,
                 reinterpret_cast<uptr>(H + 1), H->MemMap);
   } else {
-    unmap(H->MemMap);
+    // Note that the `H->MapMap` is stored on the pages managed by itself. Take
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ChiaHungDuan wrote:

Done

https://github.com/llvm/llvm-project/pull/102367