NULL Pointer Dereference Affecting kernel-rt-debug-core package, versions <0:4.18.0-477.10.1.rt7.274.el8_8
Threat Intelligence
EPSS
0.15% (52nd
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGCORE-2863215
- published 8 Jun 2022
- disclosed 25 May 2022
Introduced: 25 May 2022
CVE-2022-1789 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-core to version 0:4.18.0-477.10.1.rt7.274.el8_8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by Centos.
See How to fix? for Centos:8 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.
References
- https://access.redhat.com/security/cve/CVE-2022-1789
- https://bugzilla.redhat.com/show_bug.cgi?id=1832397
- https://francozappa.github.io/about-bias/
- https://kb.cert.org/vuls/id/647177/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IBUOQTNTQ4ZCXHOCNKYIL2ZUIAZ675RD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KCEAPIVPRTJHKPF2A2HVF5XHD5XJT3MN/
- https://www.debian.org/security/2022/dsa-5161
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IBUOQTNTQ4ZCXHOCNKYIL2ZUIAZ675RD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KCEAPIVPRTJHKPF2A2HVF5XHD5XJT3MN/
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