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CVE-2021-4002

MEDIUM CVSS: 4.4 Published: 2022-03-03 Modified: 2026-06-17

Description

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.

Affected Platforms

Fedoraproject FedoraOracle Communications Cloud Native Core PolicyDebian Debian LinuxLinux Linux KernelOracle Communications Cloud Native Core Network Exposure FunctionOracle Communications Cloud Native Core Binding Support Function

Weakness Type

CWE-459, CWE-401

References