CVE Database›Document archive›CVE-2015-4692

CVE-2015-4692

kernel: kvm x86: NULL pointer dereference in kvm_apic_has_events function

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 2.0

Review impact separately from score.

Published · June 4, 2015

Updated · November 21, 2025

Description

A DoS flaw was found for a Linux kernel built for the x86 architecture which had the KVM virtualization support(CONFIG_KVM) enabled. The kernel would be vulnerable to a NULL pointer dereference flaw in Linux kernel's kvm_apic_has_events() function while doing an ioctl. An unprivileged user able to access the "/dev/kvm" device could use this flaw to crash the system kernel.

Statement

This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.

This issue affects the version of the kernel package as shipped with Red Hat Enterprise Linux 7.

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 2.0 · 4.7
AV:L/AC:M/Au:N/C:N/I:N/A:C

CWE-476 · NULL Pointer Dereference