Bug 2090723 (CVE-2022-1789)

Summary:	CVE-2022-1789 kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bdettelb, bhu, bskeggs, chwhite, crwood, ddepaula, dvlasenk, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rkeshri, rvrbovsk, scweaver, steved, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.18	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in KVM. With shadow paging enabled if INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference. This flaw allows a guest user to cause a kernel oops condition on the host, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-16 18:53:46 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2090724, 2099301, 2099302, 2099303, 2099304
Bug Blocks:	2090725, 2090727

Description Marian Rehak 2022-05-26 12:41:07 UTC

A flaw was found in KVM. With shadow paging enabled if INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference. This flaw allows a guest user to cause a kernel oops condition on the host, resulting in a denial of service.


Reference:

https://www.openwall.com/lists/oss-security/2022/05/25/2

Comment 1 Marian Rehak 2022-05-26 12:41:39 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2090724]

Comment 3 Mauro Matteo Cascella 2022-06-20 09:57:56 UTC

Upstream fix:
https://github.com/torvalds/linux/commit/9f46c187e2e680ecd9de7983e4d081c3391acc76

Comment 13 errata-xmlrpc 2023-05-09 07:11:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2148 https://access.redhat.com/errata/RHSA-2023:2148

Comment 14 errata-xmlrpc 2023-05-09 07:50:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2458 https://access.redhat.com/errata/RHSA-2023:2458

Comment 15 errata-xmlrpc 2023-05-16 08:04:32 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2736 https://access.redhat.com/errata/RHSA-2023:2736

Comment 16 errata-xmlrpc 2023-05-16 08:33:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2951 https://access.redhat.com/errata/RHSA-2023:2951

Comment 17 Product Security DevOps Team 2023-05-16 18:53:42 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-1789

Comment 20 errata-xmlrpc 2024-07-10 00:13:04 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2024:4447 https://access.redhat.com/errata/RHSA-2024:4447