CVE-2025-21745

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Source
https://cve.org/CVERecord?id=CVE-2025-21745
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21745.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21745
Downstream
Related
Published
2025-02-27T02:12:17.853Z
Modified
2026-03-12T02:16:24.421904Z
Summary
blk-cgroup: Fix class @block_class's subsystem refcount leakage
Details

In the Linux kernel, the following vulnerability has been resolved:

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

blkcgfillrootiostats() iterates over @blockclass's devices by classdeviter_(init|next)(), but does not end iterating with classdeviter_exit(), so causes the class's subsystem refcount leakage.

Fix by ending the iterating with classdeviter_exit().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21745.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ef45fe470e1e5410db4af87abc5d5055427945ac
Fixed
ffb494f1e7a047bd7a41b13796fcfb08fe5beafb
Fixed
38287f779b34dfe959b4b681e909f2d3d52b88be
Fixed
431b6ef2714be4d5babb802114987541a88b43b0
Fixed
993121481b5a87829f1e8163f47158b72679f309
Fixed
2ce09aabe009453d641a2ceb79e6461a2d4f3876
Fixed
67c7f213e052b1aa6caba4a7e25e303bc6997126
Fixed
d1248436cbef1f924c04255367ff4845ccd9025e

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21745.json"