suse · CVE-2021-4002

Quick triage

Priority: medium Published: 2022-01-12 02:05:14 UTC Updated: 2025-12-23 03:23:18 UTC

View at Official suse advisory, NVD, CVE.org · CVE detail

Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.

Tracker summary

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.

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.

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