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A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

Weakness: Improper Privilege Management

The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Published: 2021-02-05

Community Advisory

This section is open source, for any additional information that enhances or clarifies the official advisory above.

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CVE-2021-26708 Exploits (1)

Official CVE References

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