CVE-2011-2484

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-06-24 · updated 2026-06-16
Weakness: CWE-399

Description

The add_del_listener function in kernel/taskstats.c in the Linux kernel 2.6.39.1 and earlier does not prevent multiple registrations of exit handlers, which allows local users to cause a denial of service (memory and CPU consumption), and bypass the OOM Killer, via a crafted application.

Affected products

Linux kernel: through 2.6.39.1

References

http://lists.openwall.net/linux-kernel/2011/06/16/605
http://openwall.com/lists/oss-security/2011/06/22/1
http://openwall.com/lists/oss-security/2011/06/22/2
http://www.securityfocus.com/bid/48383
https://bugzilla.redhat.com/show_bug.cgi?id=715436
https://exchange.xforce.ibmcloud.com/vulnerabilities/68150
http://lists.openwall.net/linux-kernel/2011/06/16/605
http://openwall.com/lists/oss-security/2011/06/22/1
http://openwall.com/lists/oss-security/2011/06/22/2
http://www.securityfocus.com/bid/48383
https://bugzilla.redhat.com/show_bug.cgi?id=715436
https://exchange.xforce.ibmcloud.com/vulnerabilities/68150

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