CVE-2025-71189: Linux kernel · dmaengine: dw: dmamux: fix OF node leak on route allocation failure
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in ec25e60f9f95464aa11411db31d0906b3fb7b9f2 : update Linux kernel when convenient.
Data as of 10 Nov 2026, 13:03 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- Patch
- Available – fixed in ec25e60f9f95464aa11411db31d0906b3fb7b9f2, eabe40f8a53c29f531e92778ea243e379f4f7978, db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 31 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix for this vulnerability is available in the Linux kernel as indicated by multiple fixed commits. Users and administrators should update their Linux kernel to a version that includes these fixes to remediate the issue.
Description
CVE-2025-71189 is a vulnerability in the Linux kernel's dmaengine subsystem related to the DesignWare (dw) dmamux driver. The flaw involves a resource leak of the Open Firmware (OF) node reference when route allocation fails late in the process. This issue has been fixed by ensuring the reference to the DMA master OF node is properly dropped on such failures.
References
- git.kernel.org/stable/c/6b87288581a0fcbe54b39da5c10e1aee2df8776e (opens in a new tab)
- git.kernel.org/stable/c/db7c79c1bbfb1b0184e78a17ac2bd0f2bc3134d1 (opens in a new tab)
- git.kernel.org/stable/c/8f7a391211381ed2f6802032c78c7820d166bc49 (opens in a new tab)
- git.kernel.org/stable/c/eabe40f8a53c29f531e92778ea243e379f4f7978 (opens in a new tab)
- git.kernel.org/stable/c/ec25e60f9f95464aa11411db31d0906b3fb7b9f2 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-253495.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)