CVE-2021-41220

Use after free in `CollectiveReduceV2`

Published Nov 5, 2021 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
TensorFlow is an open source platform for machine learning. In affected versions the async implementation of `CollectiveReduceV2` suffers from a memory leak and a use after free. This occurs due to the asynchronous computation and the fact that objects that have been `std::move()`d from are still accessed. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, as this version is the only one that is also affected.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-0442 TensorFlow is an open source platform for machine learning. In affected versions the async implementation of `CollectiveReduceV2` suffers from a memory leak and a use after free. This occurs due to the asynchronous computation and the fact that objects that have been `std::move()`d from are still accessed. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, as this version is the only one that is also affected.
Github GHSA Github GHSA GHSA-gpfh-jvf9-7wg5 Use after free / memory leak in `CollectiveReduceV2`
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 4, 2024, 3:08 AM
Reserved
Sep 15, 2021, 12:00 AM
Status
Modified
Published
Nov 5, 2021, 11:15 PM
Modified
Jun 17, 2026, 4:08 AM