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Fencer Intel
medium 6.2

CVE-2012-3511 json

Multiple race conditions in the madvise_remove function in mm/madvise.c in the Linux kernel before 3.4.5 allow local users to cause a denia…

published 2012-10-03 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3466

cvss
6.2
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 32%
public exploits
0
none known

Summary

Multiple race conditions in the madvise_remove function in mm/madvise.c in the Linux kernel before 3.4.5 allow local users to cause a denial of service (use-after-free and system crash) via vectors involving a (1) munmap or (2) close system call.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.2.23-1

debian advisories DEBIAN-CVE-2012-3511

  • kernel RHEL 6 2.6.32-279.14.1.el6
  • perf RHEL 6 2.6.32-279.14.1.el6
  • python-perf RHEL 6 2.6.32-279.14.1.el6
  • kernel-kdump RHEL 6 2.6.32-279.14.1.el6
  • kernel-firmware RHEL 6 2.6.32-279.14.1.el6
  • kernel-bootwrapper RHEL 6 2.6.32-279.14.1.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-279.14.1.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-279.14.1.el6

red hat advisories RHSA-2012:1426RHSA-2013:1292RHSA-2012:1491

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-2012-3511 updated cvss 6.2

kernel: mm: use-after-free in madvise_remove()

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-348.18.1.el5, kernel-PAE 2.6.18-348.18.1.el5, kernel-xen 2.6.18-348.18.1.el5, kernel-kdump 2.6.18-348.18.1.el5, kernel-debuginfo-common 2.6.18-348.18.1.el5
    fixed: vendor fix RHSA-2013:1292
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more Red Hat Enterprise Linux Desktop Optional (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more Red Hat Enterprise Linux HPC Node Optional (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more Red Hat Enterprise Linux Server Optional (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more Red Hat Enterprise Linux Workstation Optional (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, +4 more
    fixed: vendor fix RHSA-2012:1426
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.2.33-rt50.66.el6rt, mrg-rt-release 3.2.33-rt50.66.el6rt, kernel-rt-trace 3.2.33-rt50.66.el6rt, kernel-rt-vanilla 3.2.33-rt50.66.el6rt, kernel-rt-firmware 3.2.33-rt50.66.el6rt, kernel-rt-debuginfo-common-x86_64 3.2.33-rt50.66.el6rt
    fixed: vendor fix RHSA-2012:1491

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

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.2 AV:L/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
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.