CVE-2025-71186: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.

Affected products

• Linux Linux Kernel: from 4.15.1, before 5.10.249 (fixed in 5.10.249); from 5.11, before 5.15.199 (fixed in 5.15.199); from 5.16, before 6.1.162 (fixed in 6.1.162); from 6.2, before 6.6.122 (fixed in 6.6.122); from 6.7, before 6.12.67 (fixed in 6.12.67); from 6.13, before 6.18.7 (fixed in 6.18.7); …

Published 2026-01-31. Last modified 2026-07-14.