5.5

CVE-2025-21745

blk-cgroup: Fix class @block_class's subsystem refcount leakage

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().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.9 < 6.1.129
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.78
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.14
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.122
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/2ce09aabe009453d641a2ceb79e6461a2d4f3876
Patch
https://git.kernel.org/stable/c/431b6ef2714be4d5babb802114987541a88b43b0
Patch
https://git.kernel.org/stable/c/67c7f213e052b1aa6caba4a7e25e303bc6997126
Patch
https://git.kernel.org/stable/c/993121481b5a87829f1e8163f47158b72679f309
Patch
https://git.kernel.org/stable/c/d1248436cbef1f924c04255367ff4845ccd9025e
Patch
https://git.kernel.org/stable/c/38287f779b34dfe959b4b681e909f2d3d52b88be
https://git.kernel.org/stable/c/ffb494f1e7a047bd7a41b13796fcfb08fe5beafb
https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-019113.html