CVE-2025-22074: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix r_count dec/increment mismatch r_count is only increased when there is an oplock break wait, so r_count inc/decrement are not paired. This can cause r_count to become negative, which can lead to a problem where the ksmbd thread does not terminate.

Affected products

• Linux Linux Kernel: from 6.6.84, before 6.6.87 (fixed in 6.6.87); from 6.12.20, before 6.12.23 (fixed in 6.12.23); from 6.13.8, before 6.13.11 (fixed in 6.13.11); version 6.14 only; version 6.14.1 only

Published 2025-04-16. Last modified 2026-07-30.