GHSA-rh4w-94hh-9943
Suggest an improvement- Source
- https://github.com/advisories/GHSA-rh4w-94hh-9943
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-rh4w-94hh-9943/GHSA-rh4w-94hh-9943.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-rh4w-94hh-9943
- Aliases
- Published
- 2022-05-24T17:37:49Z
- Modified
- 2023-11-08T04:03:38.548968Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- MutexGuard::map can cause a data race in safe code
- Details
-
Affected versions of the crate had a Send/Sync implementation for MappedMutexGuard that only considered variance on T, while MappedMutexGuard dereferenced to U.
This could of led to data races in safe Rust code when a closure used in MutexGuard::map() returns U that is unrelated to T.
The issue was fixed by fixing Send and Sync implementations, and by adding a PhantomData<&'a mut U> marker to the MappedMutexGuard type to tell the compiler that the guard is over U too.
- Database specific
{ "nvd_published_at": "2020-12-31T09:15:00Z", "github_reviewed": true, "github_reviewed_at": "2022-06-16T23:55:12Z", "cwe_ids": [ "CWE-362" ], "severity": "MODERATE" }- References
Affected packages
crates.io / futures-util
Package
- Name
- futures-util
- View open source insights on deps.dev
- Purl
- pkg:cargo/futures-util