Fix a race condition which leads product to hang#1426
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the order to read this.joinableTask is not ensured in the current lock-free part of the logic. Under a race condition, this leads AsyncLazy to wait the inner task instead of the joinable task when two threads hitting this code about the same time.
AArnott
approved these changes
Mar 6, 2025
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Should we target an older servicing branch for this fix, if VS is already impacted by this bug? |
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the order to read this.joinableTask is not ensured in the current lock-free part of the logic. Under a race condition, this leads AsyncLazy to wait the inner task instead of the joinable task when two threads hitting this code about the same time.