CVE-2011-2521

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Summary

CVECVE-2011-2521
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-05-24 23:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

AV:L/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
perf, x86: Fix Intel fixed counters base initialization · torvalds/linux@fc66c52 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp.osuosl.org Broken Link
oss-security - Re: CVE request: kernel: perf, x86: fix Intel fixed counters base initialization af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
Bug 719228 – CVE-2011-2521 kernel: perf, x86: fix Intel fixed counters base initialization af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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