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NVD / CVE Program· CNA Linux

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

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.29% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 386e69e068177ee91cac27f2f0e6ebda1515f5ca, 39642b0feddb9c39faa6de469a94bfeb4dc0d3a9, 466134df7561aeb801baddf6666b512e0e1a1707.

Low priority for now. Upgrade to Linux Linux 386e69e068177ee91cac27f2f0e6ebda1515f5ca, 39642b0feddb9c39faa6de469a94bfeb4dc0d3a9, 466134df7561aeb801baddf6666b512e0e1a1707 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 21th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.35 and later · before 4.9.318
  • linux linux kernel4.10 and later · before 4.14.283
  • linux linux kernel4.15 and later · before 4.19.247
  • linux linux kernel4.20 and later · before 5.4.198
  • linux linux kernel5.5 and later · before 5.10.121
  • linux linux kernel5.11 and later · before 5.15.46
  • linux linux kernel5.16 and later · before 5.17.14
  • linux linux kernel5.18 and later · before 5.18.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.35affected
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before 39642b0feddb9c39faa6de469a94bfeb4dc0d3a9affected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before 606732650a2c88e66c59c22dd5464ea0d820250eaffected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before f76ddc8fcf6d81fe89bfa4d3efcbc4fe69a91d48affected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before 386e69e068177ee91cac27f2f0e6ebda1515f5caaffected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before d8a5bdc767f17281da648555cdbd286f98fd98eeaffected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before b3fcf1f583b1a0946d9d9bfb7362c9c186801775affected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before 466134df7561aeb801baddf6666b512e0e1a1707affected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before 6905be93d1ab54f73718047536fec0ca488d5315affected · git
    • ed4a6d7f0676db50b5023cc01f6cda82a2f2a307 and later · before da63dc84befaa9e6079a0bc363ff0eaa975f9073affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.5-15.18.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49440Feb 26, 2025 · powerpc/rtas: Keep MSR[RI] set when calling RTAS
    22Monitor
  • ← EarlierCVE-2022-49441Feb 26, 2025 · tty: fix deadlock caused by calling printk() under tty_port->lock
    22Monitor
  • Later →CVE-2022-49443Feb 26, 2025 · list: fix a data-race around ep->rdllist
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux386e69e068177ee91cac27f2f0e6ebda1515f5caVendor (CNA)
Linux Linux39642b0feddb9c39faa6de469a94bfeb4dc0d3a9Vendor (CNA)
Linux Linux466134df7561aeb801baddf6666b512e0e1a1707Vendor (CNA)
Linux Linux606732650a2c88e66c59c22dd5464ea0d820250eVendor (CNA)
Linux Linux6905be93d1ab54f73718047536fec0ca488d5315Vendor (CNA)
Linux Linuxb3fcf1f583b1a0946d9d9bfb7362c9c186801775Vendor (CNA)
Linux Linuxd8a5bdc767f17281da648555cdbd286f98fd98eeVendor (CNA)
Linux Linuxda63dc84befaa9e6079a0bc363ff0eaa975f9073Vendor (CNA)
Linux Linuxf76ddc8fcf6d81fe89bfa4d3efcbc4fe69a91d48Vendor (CNA)
debian:linux5.18.5-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records