CVE-2025-21745
N/A
N/A
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().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < ffb494f1e7a047bd7a41b13796fcfb08fe5beafb | affected |
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < 38287f779b34dfe959b4b681e909f2d3d52b88be | affected |
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < 431b6ef2714be4d5babb802114987541a88b43b0 | affected |
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < 993121481b5a87829f1e8163f47158b72679f309 | affected |
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < 2ce09aabe009453d641a2ceb79e6461a2d4f3876 | affected |
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < 67c7f213e052b1aa6caba4a7e25e303bc6997126 | affected |
| Linux | Linux | ef45fe470e1e5410db4af87abc5d5055427945ac < d1248436cbef1f924c04255367ff4845ccd9025e | affected |
| Linux | Linux | 5.9 | affected |
| Linux | Linux | 0 < 5.9 | unaffected |
| Linux | Linux | 5.10.235 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.179 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.129 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.78 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.14 <= 6.12.* | unaffected |
| Linux | Linux | 6.13.3 <= 6.13.* | unaffected |
| Linux | Linux | 6.14 <= * | unaffected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
Additional References
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
References
- https://git.kernel.org/stable/c/ffb494f1e7a047bd7a41b13796fcfb08fe5beafb
- https://git.kernel.org/stable/c/38287f779b34dfe959b4b681e909f2d3d52b88be
- https://git.kernel.org/stable/c/431b6ef2714be4d5babb802114987541a88b43b0
- https://git.kernel.org/stable/c/993121481b5a87829f1e8163f47158b72679f309
- https://git.kernel.org/stable/c/2ce09aabe009453d641a2ceb79e6461a2d4f3876
- https://git.kernel.org/stable/c/67c7f213e052b1aa6caba4a7e25e303bc6997126
- https://git.kernel.org/stable/c/d1248436cbef1f924c04255367ff4845ccd9025e
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.