The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2015:0694 Released 2015-03-17 · Red Hat rating Importantkernel-rt security, bug fix, and enhancement update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-229.rt56.144.el6rt, kernel-rt-debug-1:3.10.0-229.rt56.144.el6rt, kernel-rt-debug-devel-1:3.10.0-229.rt56.144.el6rt +7
- RHSA-2015:0290 Released 2015-03-05 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-229.el7, kernel-abi-whitelists-3.10.0-229.el7, kernel-debug-3.10.0-229.el7 +7
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.el7, python-perf-3.10.0-229.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-229.el7, kernel-abi-whitelists-3.10.0-229.el7, kernel-debug-3.10.0-229.el7 +7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.el7, python-perf-3.10.0-229.el7
- Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-229.el7, kernel-abi-whitelists-3.10.0-229.el7, kernel-bootwrapper-3.10.0-229.el7 +10
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.el7, python-perf-3.10.0-229.el7
- Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-229.el7, kernel-abi-whitelists-3.10.0-229.el7, kernel-debug-3.10.0-229.el7 +7
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-229.el7, python-perf-3.10.0-229.el7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:0290 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2015:0694 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2014-8173
- 2026-10-03 Alias added: GHSA-j9vf-fgh2-x3qm
References
Advisory 4
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2014-8173 · CVE Program
- CVE-2014-8173 · NVD
- FIRST EPSS
- GHSA-j9vf-fgh2-x3qm · GitHub Advisory Database · CC BY 4.0
- CVE-2014-8173 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences