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NVD / CVE Program· CNA Linux

CVE-2022-49457: ARM: versatile: Add missing of_node_put in dcscb_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: 0.27% (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 23b44f9c649bbef10b45fa33080cd8b4166800ae, 2d7b23db35254b7d46e852967090c64cdccf24da, 3c6006faed9aba5144b33176d061031a9be66954.

Low priority for now. Upgrade to Linux Linux 23b44f9c649bbef10b45fa33080cd8b4166800ae, 2d7b23db35254b7d46e852967090c64cdccf24da, 3c6006faed9aba5144b33176d061031a9be66954 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: ARM: versatile: Add missing of_node_put in dcscb_init The device_node pointer is returned by of_find_compatible_node with refcount incremented. We should use of_node_put() to avoid the refcount leak.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th 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 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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.

Follow CVE-2022-49457

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 kernelbefore 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

    • 3.11affected
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before 2d7b23db35254b7d46e852967090c64cdccf24daaffected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before bbdfb7d4f036118d36415a2575efa6f5246505aeaffected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before a0fc05cd17617e63fc13ad0c01f3f0afd890d8ecaffected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before fcd1999ba97445a12cc394f5f42ffd9116bf0185affected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before d146e2a9864ade19914494de3fb520390b415d58affected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before 83c329b980bddbc8c6a3d287d91f2103a4d4a860affected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before 3c6006faed9aba5144b33176d061031a9be66954affected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before d6de7b181c29cd4578ec139aafb5eac062abbe1baffected · git
    • 1e904e1bf6f1285cc2dd5696c44b7cf78cda643f and later · before 23b44f9c649bbef10b45fa33080cd8b4166800aeaffected · 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-2022-49455Feb 26, 2025 · misc: ocxl: fix possible double free in ocxl_file_register_afu
    31Monitor
  • ← EarlierCVE-2022-49456Feb 26, 2025 · bonding: fix missed rcu protection
    22Monitor
  • Later →CVE-2022-49458Feb 26, 2025 · drm/msm: don't free the IRQ if it was not requested
    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 Linux23b44f9c649bbef10b45fa33080cd8b4166800aeVendor (CNA)
Linux Linux2d7b23db35254b7d46e852967090c64cdccf24daVendor (CNA)
Linux Linux3c6006faed9aba5144b33176d061031a9be66954Vendor (CNA)
Linux Linux83c329b980bddbc8c6a3d287d91f2103a4d4a860Vendor (CNA)
Linux Linuxa0fc05cd17617e63fc13ad0c01f3f0afd890d8ecVendor (CNA)
Linux Linuxbbdfb7d4f036118d36415a2575efa6f5246505aeVendor (CNA)
Linux Linuxd146e2a9864ade19914494de3fb520390b415d58Vendor (CNA)
Linux Linuxd6de7b181c29cd4578ec139aafb5eac062abbe1bVendor (CNA)
Linux Linuxfcd1999ba97445a12cc394f5f42ffd9116bf0185Vendor (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)

—

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