What’s Vulnerable › Vulnerabilities

CVE-2025-71189: dmaengine: dw: dmamux: fix OF node leak on route allocation failure

• 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: 2026-01-31 · updated 2026-10-15
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw: dmamux: fix OF node leak on route allocation failure Make sure to drop the reference taken to the DMA master OF node also on late route allocation failures.

Affected products

• Linux kernel: from 5.19.1 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.67; from 6.13 before 6.18.7; 5.19, 6.19-rc1, 6.19-rc2, 6.19-rc3, 6.19-rc4, 6.19-rc5 (+3) — fixed in 6.1.162, 6.12.67, 6.18.7, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 6.1.162, 6.12.67, 6.18.7, 6.6.122. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6b87288581a0fcbe54b39da5c10e1aee2df8776e
• https://git.kernel.org/stable/c/8f7a391211381ed2f6802032c78c7820d166bc49
• https://git.kernel.org/stable/c/db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1
• https://git.kernel.org/stable/c/eabe40f8a53c29f531e92778ea243e379f4f7978
• https://git.kernel.org/stable/c/ec25e60f9f95464aa11411db31d0906b3fb7b9f2
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-253495.html
• https://cert-portal.siemens.com/productcert/html/ssa-457936.html

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