CVE-2012-1146

Name: CVE-2012-1146
Creator: NVD / NIST
Published: 2012-05-17T11:00:37.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.52%

Last modified Jun 16, 2026

CVE-2012-1146 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.52%

40.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	< 3.2.10	—
Fedoraproject	Fedora	16	—
Suse	Linux Enterprise Desktop	11	Sp2
Suse	Linux Enterprise High Availability Extension	11	Sp2
Suse	Linux Enterprise Server	11	Sp2

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f
http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/48898Broken Link
http://secunia.com/advisories/48964Broken Link
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10Mailing List, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2012/03/07/3Exploit, Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=800813Exploit, Issue Tracking, Patch, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/73711Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986fExploit, Patch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f
http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/48898Broken Link
http://secunia.com/advisories/48964Broken Link
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10Mailing List, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2012/03/07/3Exploit, Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=800813Exploit, Issue Tracking, Patch, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/73711Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986fExploit, Patch, Third Party Advisory

Timeline

Published: May 17, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-1146?

How severe is CVE-2012-1146?

CVE-2012-1146 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2012-1146?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-1146?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST