{"id":"CVE-2025-21745","state":"PUBLISHED","title":"blk-cgroup: Fix class @block_class's subsystem refcount leakage","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: Fix class @block_class's subsystem refcount leakage\n\nblkcg_fill_root_iostats() iterates over @block_class's devices by\nclass_dev_iter_(init|next)(), but does not end iterating with\nclass_dev_iter_exit(), so causes the class's subsystem refcount leakage.\n\nFix by ending the iterating with class_dev_iter_exit().","publishedAt":"2025-02-27T02:12:17.853Z","updatedAt":"2026-10-15T01:03:57.276Z","severity":null,"assigner":"Linux","products":["Linux 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