VULNERABILITY INTELLIGENCE

CVE-2014-8173

CVSS score7.2 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2015-03-16
Last modified2026-06-17
CVSS vectorAV:L/AC:L/Au:N/C:C/I:C/A:C

Description

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.

Primary references