CVE-2015-8955

kernel: Possible privilege escalation via groups spanning multiple HW PMUs

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Severity

Low

Red Hat Product Security

7.3

CVSS 3.0

Review impact separately from score.

Published · March 17, 2015

Updated · November 21, 2025

Description

arch/arm64/kernel/perf_event.c in the Linux kernel before 4.1 on arm64 platforms allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via vectors involving events that are mishandled during a span of multiple HW PMUs.

Statement

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. 6, 7 and Red Hat Enterprise MRG-2 as the code with the flaw is not present in the products listed.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.3
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0 · 6.9
AV:L/AC:M/Au:N/C:C/I:C/A:C

CWE-822 · Untrusted Pointer Dereference