PT-2025-8857 · Linux+10 · Linux Kernel+10

Zijun Hu

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Publicado

2025-01-05

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Atualizado

2026-04-20

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CVE-2025-21745

CVSS v3.1

5.5

Média

VetorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A issue in the Linux kernel has been resolved, related to the blk-cgroup subsystem. The blkcg fill root iostats() function iterates over devices by class dev iter init() and class dev iter next(), but fails to properly end the iteration with class dev iter exit(), resulting in a subsystem refcount leakage.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

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Enumeração de Fraquezas

CWE-401

Identificadores relacionados

ALSA-2025:20518
ALT-PU-2025-12647
AZL-57902
BDU:2025-12047
CVE-2025-21745
DLA-4102-1
DLA-4178-1
INFSA-2025_20518
OESA-2025-1339
OESA-2025-1340
OPENSUSE-SU-2025_1177-1
OPENSUSE-SU-2025_1178-1
OPENSUSE-SU-2025_1180-1
RHSA-2025:20518
RHSA-2025_20518
SUSE-SU-2025:01919-1
SUSE-SU-2025:1177-1
SUSE-SU-2025:1178-1
SUSE-SU-2025:1180-1
SUSE-SU-2025:20190-1
SUSE-SU-2025:20192-1
SUSE-SU-2025:20260-1
SUSE-SU-2025:20270-1
SUSE-SU-2025_1177-1
SUSE-SU-2025_1178-1
SUSE-SU-2025_1180-1
USN-7510-1
USN-7510-2
USN-7510-3
USN-7510-4
USN-7510-5
USN-7510-6
USN-7510-7
USN-7510-8
USN-7511-1
USN-7511-2
USN-7511-3
USN-7512-1
USN-7521-1
USN-7521-2
USN-7521-3
USN-7593-1
USN-7602-1
USN-7651-1
USN-7651-2
USN-7651-3
USN-7651-4
USN-7651-5
USN-7651-6
USN-7652-1
USN-7653-1
USN-7737-1

Produtos afetados

Alt Linux
Almalinux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu