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NVD / CVE Program· CNA Linux

CVE-2022-50161: mtd: maps: Fix refcount leak in of_flash_probe_versatile

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: 0.19% (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 33ec82a6d2b119938f26e5c8040ed5d92378eb54, 3c8de6a838b7e0eb392754ac89dd66e698684342, 4d67c8f74d804b20febf716ec96e9a475457ec60.

Low priority for now. Upgrade to Linux Linux 33ec82a6d2b119938f26e5c8040ed5d92378eb54, 3c8de6a838b7e0eb392754ac89dd66e698684342, 4d67c8f74d804b20febf716ec96e9a475457ec60 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: mtd: maps: Fix refcount leak in of_flash_probe_versatile of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 18, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 9th percentile
CWE
—

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 · 0.1%

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 kernel4.7 and later · before 4.14.291
  • linux linux kernel4.15 and later · before 4.19.256
  • linux linux kernel4.20 and later · before 5.4.211
  • linux linux kernel5.5 and later · before 5.10.137
  • linux linux kernel5.11 and later · before 5.15.61
  • linux linux kernel5.16 and later · before 5.18.18
  • linux linux kernel5.19 and later · before 5.19.2

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

    • 4.7affected
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 3c8de6a838b7e0eb392754ac89dd66e698684342affected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 79e57889aa0d92a6d769bad808fb105e7b6ea495affected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 9124d51e01232a91da4034768a2a8d1688472179affected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 52ae2b14f76ef2d490337ddc0037bc37125be7b8affected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 4d67c8f74d804b20febf716ec96e9a475457ec60affected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 5d5ddd8771fa9cabeb247fba5f6ab60d63f3fbceaffected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before f516fbb63873ee23cba5b7c3d239677c30f13df8affected · git
    • b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 and later · before 33ec82a6d2b119938f26e5c8040ed5d92378eb54affected · git
    • before 4.7not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.2-16.0.2-1

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-2022-50158Jun 18, 2025 · mtd: partitions: Fix refcount leak in parse_redboot_of
    22Monitor
  • ← EarlierCVE-2022-50160Jun 18, 2025 · mtd: maps: Fix refcount leak in ap_flash_init
    22Monitor
  • Later →CVE-2022-50162Jun 18, 2025 · wifi: libertas: Fix possible refcount leak in if_usb_probe()
    22Monitor

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 Linux33ec82a6d2b119938f26e5c8040ed5d92378eb54Vendor (CNA)
Linux Linux3c8de6a838b7e0eb392754ac89dd66e698684342Vendor (CNA)
Linux Linux4d67c8f74d804b20febf716ec96e9a475457ec60Vendor (CNA)
Linux Linux52ae2b14f76ef2d490337ddc0037bc37125be7b8Vendor (CNA)
Linux Linux5d5ddd8771fa9cabeb247fba5f6ab60d63f3fbceVendor (CNA)
Linux Linux79e57889aa0d92a6d769bad808fb105e7b6ea495Vendor (CNA)
Linux Linux9124d51e01232a91da4034768a2a8d1688472179Vendor (CNA)
Linux Linuxf516fbb63873ee23cba5b7c3d239677c30f13df8Vendor (CNA)
debian:linux6.0.2-1 · 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)

—

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 (7 more)

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

All records