Skip to content

Concurrency Crash in CurrentValueRelay Subscriptions Modification #172

Description

@rlziii

There's a race condition where accessing CurrentValueRelay.receive(subscriber:) has the potential to cause a crash if there is a concurrent modification to the CurrentValueRelay's subscriptions property. This can be fixed with a lock (for example, using the library's internal Lock). This crash in difficult to reproduce in practice but trivial to reproduce in a simple test (e.g. using DispatchQueue.concurrentPerform(iterations:execute:)).

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions