NULL Pointer Dereference Affecting kernel-64k-debug-modules package, versions <0:5.14.0-284.11.1.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-RHEL9-KERNEL64KDEBUGMODULES-5590242
  • published8 Jun 2022
  • disclosed25 May 2022

Introduced: 25 May 2022

CVE-2022-1789  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-64k-debug-modules to version 0:5.14.0-284.11.1.el9_2 or higher.
This issue was patched in RHSA-2023:2458.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64k-debug-modules package and not the kernel-64k-debug-modules package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.

CVSS Scores

version 3.1