What’s Vulnerable › Vulnerabilities

CVE-2025-71191: dmaengine: at_hdmac: fix device leak on of_dma_xlate()

• 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

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: at_hdmac: fix device leak on of_dma_xlate() Make sure to drop the reference taken when looking up the DMA platform device during of_dma_xlate() when releasing channel resources. Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()") fixed the leak in a couple of error paths but the reference is still leaking on successful allocation.

Affected products

• Linux kernel: from 3.10.1 before 5.10.249; from 5.11 before 5.15.199; from 5.16 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 — fixed in 5.10.249, 5.15.199, 6.1.162, 6.12.67, 6.18.7, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 5.10.249, 5.15.199, 6.1.162, 6.12.67. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/48b2d7f530b83cb149dbf0e48f95ccadb2d90da9
• https://git.kernel.org/stable/c/49d964cde422dc66fea514b7ab24aa729df7081d
• https://git.kernel.org/stable/c/4c67b4f45c8540ee4e62e24ca4608c6a9a81ee0f
• https://git.kernel.org/stable/c/6a86cf2c09e149d5718a5b7090545f7566da9334
• https://git.kernel.org/stable/c/987c71671367f42460689b78244d7b894c50999a
• https://git.kernel.org/stable/c/b9074b2d7a230b6e28caa23165e9d8bc0677d333
• https://git.kernel.org/stable/c/f3c23b7e941349505c3d40de2cc0acd93d9ac057
• 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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