CVE-2016-8630

kernel: kvm: x86: NULL pointer dereference during instruction decode

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Severity

Important

Red Hat Product Security

6.2

CVSS 3.0

Review impact separately from score.

Published · November 2, 2016

Updated · June 28, 2026

Description

Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support is vulnerable to a null pointer dereference flaw. It could occur on x86 platform, when emulating an undefined instruction. An attacker could use this flaw to crash the host kernel resulting in DoS.

Statement

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

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7 may address this issue.

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 · 6.2
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

CVSS 2.0 · 5.2
AV:A/AC:M/Au:S/C:N/I:N/A:C

CWE-476 · NULL Pointer Dereference