CVE-2026-53288

kernel: arm64: Reserve an extra page for early kernel mapping

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · June 26, 2026

Updated · June 29, 2026

Description

A flaw was found in the Linux kernel, affecting systems running on the arm64 architecture. This vulnerability occurs during the early kernel mapping process, where an insufficient number of pages are reserved for kernel segments. This can lead to an overflow of data into adjacent memory pages, potentially impacting system stability or causing unintended memory access within the kernel.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-131 · Incorrect Calculation of Buffer Size