CVE-2025-40325: 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: md/raid10: wait barrier before returning discard request with REQ_NOWAIT raid10_handle_discard should wait barrier before returning a discard bio which has REQ_NOWAIT. And there is no need to print warning calltrace if a discard bio has REQ_NOWAIT flag. Quality engineer usually checks dmesg and reports error if dmesg has warning/error calltrace.

Affected products

• Linux Linux Kernel: from 5.15.111, before 5.16 (fixed in 5.16); from 5.17, before 6.14.2 (fixed in 6.14.2)

Published 2025-04-18. Last modified 2026-06-17.