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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-21745

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

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ef45fe470e1e5410db4af87abc5d5055427945ac to < ffb494f1e7a047bd7a41b13796fcfb08fe5beafbaffected
  • ef45fe470e1e5410db4af87abc5d5055427945ac to < 38287f779b34dfe959b4b681e909f2d3d52b88beaffected
  • ef45fe470e1e5410db4af87abc5d5055427945ac to < 431b6ef2714be4d5babb802114987541a88b43b0affected
  • ef45fe470e1e5410db4af87abc5d5055427945ac to < 993121481b5a87829f1e8163f47158b72679f309affected
  • ef45fe470e1e5410db4af87abc5d5055427945ac to < 2ce09aabe009453d641a2ceb79e6461a2d4f3876affected
  • ef45fe470e1e5410db4af87abc5d5055427945ac to < 67c7f213e052b1aa6caba4a7e25e303bc6997126affected
  • ef45fe470e1e5410db4af87abc5d5055427945ac to < d1248436cbef1f924c04255367ff4845ccd9025eaffected

Linux Linux

Default version status: affected

  • 5.9affected
  • 0 to < 5.9unaffected
  • 5.10.235 to ≤ 5.10.*unaffected
  • 5.15.179 to ≤ 5.15.*unaffected
  • 6.1.129 to ≤ 6.1.*unaffected
  • 6.6.78 to ≤ 6.6.*unaffected
  • 6.12.14 to ≤ 6.12.*unaffected
  • 6.13.3 to ≤ 6.13.*unaffected
  • 6.14 to ≤ *unaffected

References