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NVD / CVE Program· CNA Linux

CVE-2022-50444: clk: tegra20: Fix refcount leak in tegra20_clock_init

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: 0.16% (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 0172d14f50098f5736b4b272a1529a3e05419bd6, 4e343bafe03ff68a62f48f8235cf98f2c685468b, 53531d00e2a8a28a3bf56ea58b18ff3611824f37.

Low priority for now. Upgrade to Linux Linux 0172d14f50098f5736b4b272a1529a3e05419bd6, 4e343bafe03ff68a62f48f8235cf98f2c685468b, 53531d00e2a8a28a3bf56ea58b18ff3611824f37 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: clk: tegra20: Fix refcount leak in tegra20_clock_init of_find_matching_node() 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
Oct 1, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 5th 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 kernel3.9 and later · before 4.9.331
  • linux linux kernel4.10 and later · before 4.14.296
  • linux linux kernel4.15 and later · before 4.19.262
  • linux linux kernel4.20 and later · before 5.4.220
  • linux linux kernel5.5 and later · before 5.10.150
  • linux linux kernel5.11 and later · before 5.15.75
  • linux linux kernel5.16 and later · before 5.19.17
  • linux linux kernel6.0 and later · before 6.0.3

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

    • 3.9affected
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before f9bdef9bb60814514a787b84184ecaa269a7c951affected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 6f76ef65899fcd93ca747ef38d7a41931e61e4faaffected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 0172d14f50098f5736b4b272a1529a3e05419bd6affected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 5d9fb09612defe7b1d5627db7b3833b46eb21e7baffected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 70f0a0a27d79f689defc5f5f0bd47d07813e6deaaffected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before d6e750535b46e12cdde185b416c415e49e4e6e22affected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 8cd228892759d37f36a46616025f4fa0d0a63b5daffected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 53531d00e2a8a28a3bf56ea58b18ff3611824f37affected · git
    • 37c26a906527b8a6a252614ca83d21ad318c4e84 and later · before 4e343bafe03ff68a62f48f8235cf98f2c685468baffected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.3-16.0.3-1

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-2022-50442Oct 1, 2025 · fs/ntfs3: Validate buffer length while parsing index
    28Monitor
  • ← EarlierCVE-2022-50443Oct 1, 2025 · drm/rockchip: lvds: fix PM usage counter unbalance in poweron
    22Monitor
  • Later →CVE-2022-50445Oct 1, 2025 · xfrm: Reinject transport-mode packets through workqueue
    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 Linux0172d14f50098f5736b4b272a1529a3e05419bd6Vendor (CNA)
Linux Linux4e343bafe03ff68a62f48f8235cf98f2c685468bVendor (CNA)
Linux Linux53531d00e2a8a28a3bf56ea58b18ff3611824f37Vendor (CNA)
Linux Linux5d9fb09612defe7b1d5627db7b3833b46eb21e7bVendor (CNA)
Linux Linux6f76ef65899fcd93ca747ef38d7a41931e61e4faVendor (CNA)
Linux Linux70f0a0a27d79f689defc5f5f0bd47d07813e6deaVendor (CNA)
Linux Linux8cd228892759d37f36a46616025f4fa0d0a63b5dVendor (CNA)
Linux Linuxd6e750535b46e12cdde185b416c415e49e4e6e22Vendor (CNA)
Linux Linuxf9bdef9bb60814514a787b84184ecaa269a7c951Vendor (CNA)
debian:linux6.0.3-1 · 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 (8 more)

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

All records