NULL Pointer Dereference Affecting kernel-azure-devel package, versions <5.14.21-150400.14.7.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-SLES154-KERNELAZUREDEVEL-2965294
  • published2 Aug 2022
  • disclosed1 Aug 2022

Introduced: 1 Aug 2022

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

How to fix?

Upgrade SLES:15.4 kernel-azure-devel to version 5.14.21-150400.14.7.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-azure-devel package and not the kernel-azure-devel package as distributed by SLES. See How to fix? for SLES:15.4 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