Unrated severityNVD Advisory· Published May 24, 2012· Updated Jun 16, 2026
CVE-2011-2521
CVE-2011-2521
Description
The x86_assign_hw_event function in arch/x86/kernel/cpu/perf_event.c in the Performance Events subsystem in the Linux kernel before 2.6.39 does not properly calculate counter values, which allows local users to cause a denial of service (panic) via the perf program.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <2.6.39
Patches
Vulnerability mechanics
References
5- github.com/torvalds/linux/commit/fc66c5210ec2539e800e87d7b3a985323c7be96envdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2011/07/06/4nvdMailing ListThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39nvdBroken Link
- git.kernel.orgnvd
News mentions
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