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RUSTSEC-2021-0072: Task dropped in wrong thread when aborting LocalSet task #252

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Description

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Task dropped in wrong thread when aborting LocalSet task

Details
Package tokio
Version 0.3.7
URL tokio-rs/tokio#3929
Date 2021-07-07
Patched versions >=1.5.1, <1.6.0,>=1.6.3, <1.7.0,>=1.7.2, <1.8.0,>=1.8.1
Unaffected versions <0.3.0

When aborting a task with JoinHandle::abort, the future is dropped in the
thread calling abort if the task is not currently being executed. This is
incorrect for tasks spawned on a LocalSet.

This can easily result in race conditions as many projects use Rc or RefCell
in their Tokio tasks for better performance.

See tokio#3929 for more details.

See advisory page for additional details.

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