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    CVE-2014-8173

    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.

    Published:Dec 20, 2013
    Last Modified:Apr 12, 2025
    EPS:Mar 16, 2015
    EPSS Score:0.00045
    CVSS Score:6.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ee53664bda169f519ce3c6a22d378f0b946c8178
    http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
    http://rhn.redhat.com/errata/RHSA-2015-0290.html
    http://rhn.redhat.com/errata/RHSA-2015-0694.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1198457
    https://github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ee53664bda169f519ce3c6a22d378f0b946c8178
    http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
    http://rhn.redhat.com/errata/RHSA-2015-0290.html
    http://rhn.redhat.com/errata/RHSA-2015-0694.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1198457
    https://github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High