What’s Vulnerable › Vulnerabilities

CVE-2022-49442: drivers/base/node.c: fix compaction sysfs file leak

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-401

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.

Affected products

• Linux kernel: from 2.6.35 before 4.9.318; from 4.10 before 4.14.283; from 4.15 before 4.19.247; from 4.20 before 5.4.198; from 5.5 before 5.10.121; from 5.11 before 5.15.46 — fixed in 4.14.283, 4.19.247, 4.9.318, 5.10.121, 5.15.46, 5.17.14

How to fix

Upgrade to a fixed version: Linux kernel 4.14.283, 4.19.247, 4.9.318, 5.10.121. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/386e69e068177ee91cac27f2f0e6ebda1515f5ca
• https://git.kernel.org/stable/c/39642b0feddb9c39faa6de469a94bfeb4dc0d3a9
• https://git.kernel.org/stable/c/466134df7561aeb801baddf6666b512e0e1a1707
• https://git.kernel.org/stable/c/606732650a2c88e66c59c22dd5464ea0d820250e
• https://git.kernel.org/stable/c/6905be93d1ab54f73718047536fec0ca488d5315
• https://git.kernel.org/stable/c/b3fcf1f583b1a0946d9d9bfb7362c9c186801775
• https://git.kernel.org/stable/c/d8a5bdc767f17281da648555cdbd286f98fd98ee
• https://git.kernel.org/stable/c/da63dc84befaa9e6079a0bc363ff0eaa975f9073
• https://git.kernel.org/stable/c/f76ddc8fcf6d81fe89bfa4d3efcbc4fe69a91d48

Get alerted when CVE-2022-49442 or the next vulnerability affects your stack