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Fencer Intel
medium 4.7

CVE-2014-4171 json

mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, whi…

published 12y ago modified 4mo ago also EUVD-2014-4102

cvss
4.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.14.15-1

debian advisories DEBIAN-CVE-2014-4171

  • linux Ubuntu 14.04 LTS 3.13.0-35.62

ubuntu advisories UBUNTU-CVE-2014-4171

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 7 3.10.0-123.20.1.el7
  • perf RHEL 7 3.10.0-123.20.1.el7
  • python-perf RHEL 7 3.10.0-123.20.1.el7
  • kernel-kdump RHEL 7 3.10.0-123.20.1.el7
  • kernel-tools RHEL 7 3.10.0-123.20.1.el7
  • kernel-tools-libs RHEL 7 3.10.0-123.20.1.el7
  • kernel-bootwrapper RHEL 7 3.10.0-123.20.1.el7
  • kernel-abi-whitelists RHEL 7 3.10.0-123.20.1.el7

red hat advisories RHSA-2015:0102RHSA-2014:1318

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-4171 updated cvss 4.0

Kernel: mm/shmem: denial of service

  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-123.20.1.el7, kernel 3.10.0-123.20.1.el7, kernel-tools 3.10.0-123.20.1.el7, kernel-tools-libs 3.10.0-123.20.1.el7, kernel-abi-whitelists 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-123.20.1.el7, kernel 3.10.0-123.20.1.el7, kernel-tools 3.10.0-123.20.1.el7, kernel-tools-libs 3.10.0-123.20.1.el7, kernel-abi-whitelists 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7 Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-123.20.1.el7, kernel 3.10.0-123.20.1.el7, kernel-kdump 3.10.0-123.20.1.el7, kernel-tools 3.10.0-123.20.1.el7, kernel-tools-libs 3.10.0-123.20.1.el7, kernel-bootwrapper 3.10.0-123.20.1.el7, +4 more Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-123.20.1.el7, kernel-debuginfo-common-ppc64 3.10.0-123.20.1.el7, kernel-debuginfo-common-s390x 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-123.20.1.el7, kernel 3.10.0-123.20.1.el7, kernel-tools 3.10.0-123.20.1.el7, kernel-tools-libs 3.10.0-123.20.1.el7, kernel-abi-whitelists 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-123.20.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.20.1.el7
    fixed: vendor fix RHSA-2015:0102
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.33-rt32.51.el6rt, kernel-rt-trace 3.10.33-rt32.51.el6rt, kernel-rt-vanilla 3.10.33-rt32.51.el6rt, kernel-rt-firmware 3.10.33-rt32.51.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.33-rt32.51.el6rt
    fixed: vendor fix RHSA-2014:1318
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.7 AV:L/AC:M/Au:N/C:N/I:N/A:C

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.