Description
CopySelfToTempDir in PowerToys.Update.cpp always writes to %TEMP%\PowerToys.Update.exe. Concurrent update processes overwrite each other's temp binary.
Impact
Low - requires concurrent update attempts which is rare.
Fix
Use a unique temp filename (e.g., append PID or GUID).
Found during multi-agent code review of #46889.
Description
CopySelfToTempDirinPowerToys.Update.cppalways writes to%TEMP%\PowerToys.Update.exe. Concurrent update processes overwrite each other's temp binary.Impact
Low - requires concurrent update attempts which is rare.
Fix
Use a unique temp filename (e.g., append PID or GUID).
Found during multi-agent code review of #46889.