VULNERABILITY INTELLIGENCE

CVE-2011-2521

CVSS score4.9 MEDIUM
EPSS probability0.39%
CISA KEVNot currently listed
Published2012-05-24
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:C

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.

Primary references