CVE-2020-36472: Data races in max7301

August 25, 2021

The ImmediateIO and TransactionalIO types implement Sync for all contained Expander<EI> types regardless of if the Expander itself is safe to use across threads.

As the IO types allow retrieving the Expander, this can lead to non-thread safe types being sent across threads as part of the Expander leading to data races.

References

github.com/advisories/GHSA-rmff-f8w9-c9rm
github.com/edarc/max7301
github.com/edarc/max7301/commit/0a1da873ddb29bca926bad8301f8d7ab8aa97c52
github.com/edarc/max7301/issues/1
nvd.nist.gov/vuln/detail/CVE-2020-36472
rustsec.org/advisories/RUSTSEC-2020-0152.html

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