Update Rust crate tokio to 1.38.2 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	dependencies	minor	1.37.0 → 1.38.2

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Tokio broadcast channel calls clone in parallel, but does not require Sync

GHSA-rr8g-9fpq-6wmg / RUSTSEC-2025-0023

More information

Details

The broadcast channel internally calls clone on the stored value when receiving it, and only requires T:Send. This means that using the broadcast channel with values that are Send but not Sync can trigger unsoundness if the clone implementation makes use of the value being !Sync.

Thank you to Austin Bonander for finding and reporting this issue.

Severity

• CVSS Score: 2.7 / 10 (Low)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U

References

• https://github.com/tokio-rs/tokio/pull/7232
• https://github.com/tokio-rs/tokio
• https://rustsec.org/advisories/RUSTSEC-2025-0023.html

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

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Broadcast channel calls clone in parallel, but does not require Sync

GHSA-rr8g-9fpq-6wmg / RUSTSEC-2025-0023

More information

Details

The broadcast channel internally calls clone on the stored value when
receiving it, and only requires T:Send. This means that using the broadcast
channel with values that are Send but not Sync can trigger unsoundness if
the clone implementation makes use of the value being !Sync.

Thank you to Austin Bonander for finding and reporting this issue.

Severity

Unknown

References

• https://crates.io/crates/tokio
• https://rustsec.org/advisories/RUSTSEC-2025-0023.html
• https://github.com/tokio-rs/tokio/pull/7232

This data is provided by OSV and the Rust Advisory Database (CC0 1.0).

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Release Notes

tokio-rs/tokio (tokio)

v1.38.2: Tokio v1.38.2

Compare Source

This release fixes a soundness issue in the broadcast channel. The channel accepts values that are Send but !Sync. Previously, the channel called clone() on these values without synchronizing. This release fixes the channel by synchronizing calls to .clone() (Thanks Austin Bonander for finding and reporting the issue).

Fixed

• sync: synchronize clone() call in broadcast channel (#​7232)

v1.38.1: Tokio v1.38.1

Compare Source

1.38.1 (July 16th, 2024)

This release fixes the bug identified as (#​6682), which caused timers not
to fire when they should.

Fixed

• time: update wake_up while holding all the locks of sharded time wheels (#​6683)

v1.38.0: Tokio v1.38.0

Compare Source

This release marks the beginning of stabilization for runtime metrics. It
stabilizes RuntimeMetrics::worker_count. Future releases will continue to
stabilize more metrics.

Added

• fs: add File::create_new (#​6573)
• io: add copy_bidirectional_with_sizes (#​6500)
• io: implement AsyncBufRead for Join (#​6449)
• net: add Apple visionOS support (#​6465)
• net: implement Clone for NamedPipeInfo (#​6586)
• net: support QNX OS (#​6421)
• sync: add Notify::notify_last (#​6520)
• sync: add mpsc::Receiver::{capacity,max_capacity} (#​6511)
• sync: add split method to the semaphore permit (#​6472, #​6478)
• task: add tokio::task::join_set::Builder::spawn_blocking (#​6578)
• wasm: support rt-multi-thread with wasm32-wasi-preview1-threads (#​6510)

Changed

• macros: make #[tokio::test] append #[test] at the end of the attribute list (#​6497)
• metrics: fix blocking_threads count (#​6551)
• metrics: stabilize RuntimeMetrics::worker_count (#​6556)
• runtime: move task out of the lifo_slot in block_in_place (#​6596)
• runtime: panic if global_queue_interval is zero (#​6445)
• sync: always drop message in destructor for oneshot receiver (#​6558)
• sync: instrument Semaphore for task dumps (#​6499)
• sync: use FIFO ordering when waking batches of wakers (#​6521)
• task: make LocalKey::get work with Clone types (#​6433)
• tests: update nix and mio-aio dev-dependencies (#​6552)
• time: clean up implementation (#​6517)
• time: lazily init timers on first poll (#​6512)
• time: remove the true_when field in TimerShared (#​6563)
• time: use sharding for timer implementation (#​6534)

Fixed

• taskdump: allow building taskdump docs on non-unix machines (#​6564)
• time: check for overflow in Interval::poll_tick (#​6487)
• sync: fix incorrect is_empty on mpsc block boundaries (#​6603)

Documented

• fs: rewrite file system docs (#​6467)
• io: fix stdin documentation (#​6581)
• io: fix obsolete reference in ReadHalf::unsplit() documentation (#​6498)
• macros: render more comprehensible documentation for select! (#​6468)
• net: add missing types to module docs (#​6482)
• net: fix misleading NamedPipeServer example (#​6590)
• sync: add examples for SemaphorePermit, OwnedSemaphorePermit (#​6477)
• sync: document that Barrier::wait is not cancel safe (#​6494)
• sync: explain relation between watch::Sender::{subscribe,closed} (#​6490)
• task: clarify that you can't abort spawn_blocking tasks (#​6571)
• task: fix a typo in doc of LocalSet::run_until (#​6599)
• time: fix test-util requirement for pause and resume in docs (#​6503)

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