CVE-2026-53020

kernel: um: Fix potential race condition in TLB sync

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Severity

Low

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · June 24, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel. A race condition can occur during Translation Lookaside Buffer (TLB) synchronization when the page table is traversed and modified without properly holding the necessary page table lock. This vulnerability may allow for unpredictable system behavior or instability due to concurrent access to shared resources.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-414 · Missing Lock Check