Updated: 2026-02-27 02:19:38.6969
Description:
In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix class @block_class's subsystem refcount leakage blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage. Fix by ending the iterating with class_dev_iter_exit().
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | MEDIUM | 5.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 5.5 | MEDIUM | Ignored | 2025-03-11 00:54:51 | CVE-2025-21745 is a local-only reference count leak in the kernel’s blk-cgroup I/O accounting path... | |
| TuxCare 9.6 ESU | kernel | 5.14.0 | 5.5 | MEDIUM | Needs Triage | 2025-12-10 08:33:09 |