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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...

7.2 HighFix available

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.

Exploit likelihood

0.40%Down 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.2

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.

Record
CVE-2014-8173
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2014-8173
Updated
2026-11-02
EUVDEUVD-2014-8014 No score

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.

Record
EUVD-2014-8014
Updated
2026-11-03
GitHub AdvisoriesGHSA-j9vf-fgh2-x3qm No score

The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux...

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.

Record
GHSA-j9vf-fgh2-x3qm
Updated
2026-11-02
OSVBELL-CVE-2014-8173 7.2

CVE-2014-8173 does not affect BellSoft software

Record
BELL-CVE-2014-8173
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Updated
2026-11-02
OSVRHSA-2015:0290 6.2

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Record
RHSA-2015:0290
CVSS 3.0
6.2 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVRHSA-2015:0694 6.2

Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

Record
RHSA-2015:0694
CVSS 3.0
6.2 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV No score

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.

Record
CVE-2014-8173
Updated
2026-11-02
OSVDEBIAN-CVE-2014-8173 No score

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.

Record
DEBIAN-CVE-2014-8173
Updated
2026-11-02
OSVUBUNTU-CVE-2014-8173 No score

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.

Record
UBUNTU-CVE-2014-8173
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux
Debian:12
before 3.13.4-1
3.13.4-1
linux
Debian:13
before 3.13.4-1
3.13.4-1
linux
Debian:14
before 3.13.4-1
3.13.4-1
kernel-debug-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
Show 86 moreShow less
Affected packages
PackageAffectedFixed
python-perf-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-abi-whitelists
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-doc
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-headers
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf
Red Hat:enterprise_linux:7::client
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs-devel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-abi-whitelists
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-devel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-devel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-doc
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-headers
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf
Red Hat:enterprise_linux:7::computenode
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo-common-ppc64
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo-common-s390x
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-kdump-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-abi-whitelists
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-bootwrapper
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-doc
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-headers
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-kdump
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-kdump-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf
Red Hat:enterprise_linux:7::server
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
python-perf-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-abi-whitelists
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-debug-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-doc
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-headers
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-tools-libs
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
perf
Red Hat:enterprise_linux:7::workstation
From an advisory covering 11 CVEs
before 0:3.10.0-229.el7
0:3.10.0-229.el7
kernel-rt
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-debug
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-debug-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-debug-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-debuginfo-common-x86_64
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-doc
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-firmware
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-trace
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-trace-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-trace-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-vanilla
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-vanilla-debuginfo
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt
kernel-rt-vanilla-devel
Red Hat:enterprise_mrg:2:server:el6
From an advisory covering 5 CVEs
before 1:3.10.0-229.rt56.144.el6rt
1:3.10.0-229.rt56.144.el6rt

History

History
RecordedChangedSources
affected, facts
affected
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-8173 is a high vulnerability (CVSS 7.2) in Linux Kernel, published March 16, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. Fixed in linux 3.13.4-1.

References

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