CVE-2025-21745 (GCVE-0-2025-21745)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:12 – Updated: 2025-11-03 19:36
VLAI?
Title
blk-cgroup: Fix class @block_class's subsystem refcount leakage
Summary
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().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < ffb494f1e7a047bd7a41b13796fcfb08fe5beafb (git)
Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < 38287f779b34dfe959b4b681e909f2d3d52b88be (git)
Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < 431b6ef2714be4d5babb802114987541a88b43b0 (git)
Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < 993121481b5a87829f1e8163f47158b72679f309 (git)
Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < 2ce09aabe009453d641a2ceb79e6461a2d4f3876 (git)
Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < 67c7f213e052b1aa6caba4a7e25e303bc6997126 (git)
Affected: ef45fe470e1e5410db4af87abc5d5055427945ac , < d1248436cbef1f924c04255367ff4845ccd9025e (git)
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    Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.235 , ≤ 5.10.* (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.78 , ≤ 6.6.* (semver)
Unaffected: 6.12.14 , ≤ 6.12.* (semver)
Unaffected: 6.13.3 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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