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Status published
Medium
CVE-2011-2521
The x86_assign_hw_event function in arch/x86/kernel/cpu/perf_event.c in the Performance Events subsystem...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/torvalds/linux/commit/fc66c5210ec2539e800e87d7b3a985323c7be96e
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc66c5210ec2539e800e87d7b3a985323c7be96e
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- http://www.openwall.com/lists/oss-security/2011/07/06/4
- https://bugzilla.redhat.com/show_bug.cgi?id=719228
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Affected Vendor
linux
View all reports →Affected Software
linux kernel
Vulnerable Versions:
0
Timeline
Official Publish:
May 24th, 2012
Last Modified:
August 6th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.