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THREAT OPSThreat News › [NVD] CVE-2025-21745 (MEDIUM 5.5) — 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_exi

[NVD] CVE-2025-21745 (MEDIUM 5.5) — 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_exi

lownvdPublished 2025-02-27

CVE-2025-21745 CVSS: 5.5 MEDIUM Published: 2025-02-27T03:15:15.137

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 leakag

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-21745