The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.
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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T13:10:51.008Z

Reserved: 2014-10-10T00:00:00

Link: CVE-2014-8173

cve-icon Vulnrichment

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cve-icon NVD

Status : Deferred

Published: 2015-03-16T10:59:03.943

Modified: 2025-04-12T10:46:40.837

Link: CVE-2014-8173

cve-icon Redhat

Severity : Moderate

Publid Date: 2013-12-20T00:00:00Z

Links: CVE-2014-8173 - Bugzilla

cve-icon OpenCVE Enrichment

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