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NVD / CVE Program· CNA Linux

CVE-2022-50887: regulator: core: fix unbalanced of node refcount in regulator_dev_lookup()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.23% (FIRST EPSS).
  • Fixed version: Linux Linux 0e88505ac0a6ae97746bcdbd4b042ee9f20455ae, 2b93c58adddd98812ad928bbc2063038f3df1ffd, 2f98469c3141f8e42ba11075a273fb795bbad57f.

Low priority for now. Upgrade to Linux Linux 0e88505ac0a6ae97746bcdbd4b042ee9f20455ae, 2b93c58adddd98812ad928bbc2063038f3df1ffd, 2f98469c3141f8e42ba11075a273fb795bbad57f 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: regulator: core: fix unbalanced of node refcount in regulator_dev_lookup() I got the the following report: OF: ERROR: memory leak, expected refcount 1 instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@62/regulators/exten In of_get_regulator(), the node is returned from of_parse_phandle() with refcount incremented, after using it, of_node_put() need be called.

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • Not in KEV: no record of exploitation in the wild
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Noroxi analysis

What does it mean in your environment?

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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.

—

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

    • 3.3affected
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before 0e88505ac0a6ae97746bcdbd4b042ee9f20455aeaffected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before 4dfcf5087db9a34a300d6b99009232d4537c3e6aaffected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before 3ac888db0f67813d91373a9a61c840f815cd4ec9affected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before d39937f8de641c44a337cec4a2e5d3e8add20a7daffected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before f48c474efe05cf9ce5e535b5e0ddd710e963936caffected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before cda1895f3b7f324ece1614308a815a3994983b97affected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before 2b93c58adddd98812ad928bbc2063038f3df1ffdaffected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before 2f98469c3141f8e42ba11075a273fb795bbad57faffected · git
    • 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 and later · before f2b41b748c19962b82709d9f23c6b2b0ce9d2f91affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-50884Dec 30, 2025 · drm: Prevent drm_copy_field() to attempt copying a NULL pointer
    0Monitor
  • ← EarlierCVE-2022-50886Dec 30, 2025 · mmc: toshsd: fix return value check of mmc_add_host()
    0Monitor
  • Later →CVE-2022-50888Dec 30, 2025 · remoteproc: qcom: q6v5: Fix potential null-ptr-deref in q6v5_wcss_init_mmio()
    0Monitor

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 Linux0e88505ac0a6ae97746bcdbd4b042ee9f20455aeVendor (CNA)
Linux Linux2b93c58adddd98812ad928bbc2063038f3df1ffdVendor (CNA)
Linux Linux2f98469c3141f8e42ba11075a273fb795bbad57fVendor (CNA)
Linux Linux3ac888db0f67813d91373a9a61c840f815cd4ec9Vendor (CNA)
Linux Linux4dfcf5087db9a34a300d6b99009232d4537c3e6aVendor (CNA)
Linux Linuxcda1895f3b7f324ece1614308a815a3994983b97Vendor (CNA)
Linux Linuxd39937f8de641c44a337cec4a2e5d3e8add20a7dVendor (CNA)
Linux Linuxf2b41b748c19962b82709d9f23c6b2b0ce9d2f91Vendor (CNA)
Linux Linuxf48c474efe05cf9ce5e535b5e0ddd710e963936cVendor (CNA)
debian:linux6.1.4-1 · 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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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