CVE-2025-71187: dmaengine: sh: rz-dmac: fix device leak on probe 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 2026-06-17
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: sh: rz-dmac: fix device leak on probe failure Make sure to drop the reference taken when looking up the ICU device during probe also on probe failures (e.g. probe deferral).

Affected products

Linux kernel: from 6.16.1 before 6.18.7; 6.16, 6.19-rc1, 6.19-rc2, 6.19-rc3, 6.19-rc4, 6.19-rc5 (+3) — fixed in 6.18.7

How to fix

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

References

https://git.kernel.org/stable/c/926d1666420c227eab50962a8622c1b8444720e8
https://git.kernel.org/stable/c/9fb490323997dcb6f749cd2660a17a39854600cd

Get alerted when CVE-2025-71187 or the next vulnerability affects your stack