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CVE-2012-1146

19
FAUCET Score

CVE-2012-1146 describes a denial-of-service vulnerability in the Linux kernel, specifically affecting versions before 3.2.10, including Fedora and SUSE distributions. This flaw, a NULL pointer dereference in the mem_cgroup_usage_unregister_event function, allows local users to crash the system by registering multiple memory threshold events to the same eventfd. With a CVSS score of 5.5 (Medium), it requires local access and low attack complexity to achieve high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
16CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp2:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 93rd percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-1146Moderate

kernel: mm: memcg: unregistring of events attached to the same eventfd can lead to oops

Feb 24, 2012

References

git.kernel.org
lists.fedoraproject.org / pipermail/package-announce/2012-March/075781.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2012-04/msg00021.html
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingPatchThird Party Advisory
secunia.com / advisories/48898
Broken Link
secunia.com / advisories/48964
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/73711
Third Party AdvisoryVDB Entry
github.com / torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986f
ExploitPatchThird Party Advisory
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.2.10
Mailing ListPatchVendor Advisory
openwall.com / lists/oss-security/2012/03/07/3
ExploitMailing ListPatchThird Party Advisory