CVE-2022-49442 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drivers/base/node.c: fix compaction sysfs file leak Compaction sysfs file is created via compaction_register_node in register_node. But we forgot to remove it in unregister_node. Thus compaction sysfs file is leaked. Using compaction_unregister_node to fix this issue.
A vulnerability in the Linux kernel's handling of sysfs files related to memory compaction has been identified. The issue arises because the compaction sysfs file, created when a node is registered for compaction, is not removed when the node is unregistered. This oversight leads to a leak of the compaction sysfs file.
The vulnerability has been addressed by modifying the unregister_node function to properly remove the compaction sysfs file, preventing the leak.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/386e69e068177ee91cac27f2f0e6ebda1515f5ca | kernel.org | Patch |
| https://git.kernel.org/stable/c/39642b0feddb9c39faa6de469a94bfeb4dc0d3a9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/466134df7561aeb801baddf6666b512e0e1a1707 | kernel.org | Patch |
| https://git.kernel.org/stable/c/606732650a2c88e66c59c22dd5464ea0d820250e | kernel.org | Patch |
| https://git.kernel.org/stable/c/6905be93d1ab54f73718047536fec0ca488d5315 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b3fcf1f583b1a0946d9d9bfb7362c9c186801775 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d8a5bdc767f17281da648555cdbd286f98fd98ee | kernel.org | Patch |
| https://git.kernel.org/stable/c/da63dc84befaa9e6079a0bc363ff0eaa975f9073 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f76ddc8fcf6d81fe89bfa4d3efcbc4fe69a91d48 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.35, < 4.9.318 >= 4.10, < 4.14.283 >= 4.15, < 4.19.247 >= 4.20, < 5.4.198 >= 5.5, < 5.10.121 >= 5.11, < 5.15.46 >= 5.16, < 5.17.14 >= 5.18, < 5.18.3 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Oct 22, 2025 | Initial Analysis | [email protected] |
| Feb 26, 2025 | New CVE Received | kernel.org |