CVE-2025-21745
blk-cgroup: Fix class @block_class's subsystem refcount leakage
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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().
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().
CVSS Scores
SSVC
- Decision:-
Timeline
- 2024-12-29 CVE Reserved
- 2025-02-27 CVE Published
- 2025-03-24 CVE Updated
- 2025-04-01 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/ef45fe470e1e5410db4af87abc5d5055427945ac | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 5.10.235 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.10.235" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 5.15.179 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.15.179" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 6.1.129 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.1.129" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 6.6.78 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.6.78" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 6.12.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.12.14" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 6.13.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.13.3" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.9 < 6.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.14" | en |
Affected
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