What’s Vulnerable › Vulnerabilities

CVE-2025-38043: firmware: arm_ffa: Set dma_mask for ffa devices

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17

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

Affected products

• Debian Linux: 11.0
• Linux kernel: from 5.14 before 5.15.185; from 5.16 before 6.1.141; from 6.2 before 6.6.93; from 6.7 before 6.12.31; from 6.13 before 6.14.9 — fixed in 5.15.185, 6.1.141, 6.12.31, 6.14.9, 6.6.93

How to fix

Upgrade to a fixed version: Linux kernel 5.15.185, 6.1.141, 6.12.31, 6.14.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2e62c803feec1ef5847d8fa47dd0de039abfa378
• https://git.kernel.org/stable/c/3a3efeef64364c2a028cf0d03d68c831813a97fd
• https://git.kernel.org/stable/c/97bab02f0b64ba6bcdf6a8fae561db07f509aee9
• https://git.kernel.org/stable/c/c6aa1d6bd6ccff4ecdf064d288817657ec8532f0
• https://git.kernel.org/stable/c/cc0aac7ca17e0ea3ca84b552fc79f3e86fd07f53
• https://git.kernel.org/stable/c/e2de76c34a8a925efe80fccae4810427bc144ed0
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

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