Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-21745

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/02/2025
Last modified:
13/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> blk-cgroup: Fix class @block_class&amp;#39;s subsystem refcount leakage<br /> <br /> blkcg_fill_root_iostats() iterates over @block_class&amp;#39;s devices by<br /> class_dev_iter_(init|next)(), but does not end iterating with<br /> class_dev_iter_exit(), so causes the class&amp;#39;s subsystem refcount leakage.<br /> <br /> Fix by ending the iterating with class_dev_iter_exit().

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.9 (including) 6.1.129 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.78 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.14 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.13.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools