CVE-2012-1146

MEDIUM
5.5
CVSS Score
Published: May 17, 2012 at 10:00 AM UTC
Updated: June 16, 2026 at 11:39 PM UTC
5 products affected across 3 vendorsLinux KernelFedoraLinux Enterprise Server

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.2.10
Affected range stops below 3.2.10, so it looks safe — our inference, not a vendor statement

References (10)

Vendor Advisoryx_refsource_FEDORAMailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/48898
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/48964
x_refsource_CONFIRMMailing ListPatchVendor Advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10
Mailing Listx_refsource_MLISTExploitPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2012/03/07/3
x_refsource_CONFIRMExploitIssue TrackingPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=800813

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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