Use holding thread id in AwareLock to avoid orphaned lock crash#107168
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eduardo-vp merged 8 commits intodotnet:mainfrom Dec 10, 2024
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Use holding thread id in AwareLock to avoid orphaned lock crash#107168eduardo-vp merged 8 commits intodotnet:mainfrom
eduardo-vp merged 8 commits intodotnet:mainfrom
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| ULONG m_Recursion; | ||
| PTR_Thread m_HoldingThread; | ||
| DWORD m_HoldingThreadId; |
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It would be nice to remove m_HoldingThread altogether. It would probably need a change to get the Thread pointer from the thread ID in the DAC. Maybe this could be cleaned up in a separate PR, for now at least the field shouldn't be dereferenced.
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Just a minor comment, otherwise LGTM, thanks!
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In GetThreadOwningMonitorLock, in case there's a sync block, the method only checks for pThread to be equal to NULL to return false, otherwise it assumes pThread actually points to a thread. However, it can be the case that pThread is -1 for orphaned locks and should return false as well (the calling thread doesn't own the lock).
Fixes #44071.