CVE-2026-45868

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix refcount leak in pcs_add_gpio_func() of_parse_phandle_with_args() returns a device_node pointer with refcount incremented in gpiospec.np. The loop iterates through all phandles but never releases the reference, causing a refcount leak on each iteration. Add of_node_put() calls to release the reference after extracting the needed arguments and on the error path when devm_kzalloc() fails. This bug was detected by our static analysis tool and verified by my code review.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: high
CVSS score: 8.4 / 10
CVSS vector: AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Effective score: 8.4 / 10 HIGH source: CNA overview
CWE(s): —
Reserved: 2026-05-13
Published: 2026-05-27 12:15 UTC
Last updated: 2026-05-27 12:15 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/45xxx/CVE-2026-45868.json
Linked Threat: CVE-2026-45868 — CVE-2026-45868

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-27 14:17:00 UTC
NVD last modified: 2026-06-25 21:06:34 UTC
NVD CVSS v3.1: 5.5 / 10 MEDIUM source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 3.6 / 10
EPSS score: 0.0016 (probability of exploitation in next 30 days)
EPSS percentile: 5.17% vs all CVEs — higher = more likely to be exploited, as of 2026-07-26

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-32334
Assigner: Linux
Published: May 27, 2026, 12:15:48 PM
Updated: May 27, 2026, 12:15:48 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.1600
Vendors: Linux
Products: Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4)

Linux (patch: 5.15.202)

Linux (patch: 0)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <99cc7352156c65201c675f750e0e77c4c73d93f5)

Linux (patch: 6.12.75)

Linux (patch: 6.6.128)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <353353309b0f7afa407df29e455f9d15b5acc296)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <7814b1431848854b56717086e2b61bea3c59753d)

Linux (patch: 7.0)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <5b9e84d27e310f22c4ba45fedbc4f5baf43dd823)

Linux (patch: 6.18.14)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <191bfd5710d6a7f48ba4315d8d3e908dcc15243c)

Linux (3.10)

Linux (patch: 6.19.4)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b)

Linux (patch: 5.10.252)

Linux (a1a277eb76b3507df7c41774048a644aa4dfd096 <456a60d06c09a92680dc35fabca68024badcc28e)

Linux (patch: 6.1.165)
Aliases: GHSA-m8c9-pvw4-86cp

ENISA description: In the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix refcount leak in pcs_add_gpio_func() of_parse_phandle_with_args() returns a device_node pointer with refcount incremented in gpiospec.np. The loop iterates through all phandles but never releases the reference, causing a refcount leak on each iteration. Add of_node_put() calls to release the reference after extracting the needed arguments and on the error path when devm_kzalloc() fails. This bug was detected by our static analysis tool and verified by my code review.

EUVD references (8)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected), `a1a277eb76b3507df7c41774048a644aa4dfd096` (affected)	—
Linux	Linux	`3.10` (affected), `0` (unaffected), `5.10.252` (unaffected), `5.15.202` (unaffected), `6.1.165` (unaffected), `6.6.128` (unaffected), `6.12.75` (unaffected), `6.18.14` (unaffected), `6.19.4` (unaffected), `7.0` (unaffected)	—

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor references (8)

References embedded in the original CVE record by the assigning CNA.

Web references (11)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://git.kernel.org/stable/c/191bfd5710d6a7f48ba4315d8d3e908dcc15243c tenable:git.kernel.org
https://git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296 tenable:git.kernel.org
https://git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b tenable:git.kernel.org
https://git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28e tenable:git.kernel.org
https://git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 tenable:git.kernel.org
https://git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753d tenable:git.kernel.org
https://git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5 tenable:git.kernel.org
https://git.kernel.org/stable/c/e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 tenable:git.kernel.org
https://nvd.nist.gov/vuln/detail/CVE-2026-45868 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-45868 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (8)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://git.kernel.org/stable/c/191bfd5710d6a7f48ba4315d8d3e908dcc15243c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
https://git.kernel.org/stable/c/e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch

Remediations (16)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review

web:blog.qualys.com

May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…

2026-06-04 00:16 UTC
Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...

web:cybersecuritynews.com

Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

2026-06-04 00:16 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-06-04 00:16 UTC
CISA orders feds to patch exploited Fortinet EMS flaw by Friday

web:www.bleepingcomputer.com

On Monday, CISA added CVE - 2026 -35616 to its Known Exploited Vulnerabilities (KEV) Catalog and ordered Federal Civilian Executive Branch (FCEB) agencies to patch FortiClient EMS instances by ...

2026-06-04 00:16 UTC
Fortinet Releases Guidance to Address Ongoing Exploitation of ... - CISA

web:www.cisa.gov

Fortinet Releases Guidance to Address Ongoing Exploitation of Authentication Bypass Vulnerability CVE - 2026 -24858

2026-06-04 00:16 UTC
April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

2026-06-04 00:16 UTC
Oracle's first monthly patch release fixes 35 flaws, including 11 rated ...

web:www.csoonline.com

Oracle has released the first security fixes in its new monthly Critical Security Patch Update (CSPU) cycle, designed to address urgent vulnerabilities that can't wait for the company's ...

2026-06-04 00:16 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-06-04 00:16 UTC
VirusTotal - Home

web:www.virustotal.com

VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.

2026-06-04 00:16 UTC
Patch Tuesday June 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-06-04 00:16 UTC
Microsoft Confirms Defender RoguePlanet 0-Day Exploit and Working to ...

web:cybersecuritynews.com

Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.

2026-06-19 02:27 UTC
Nvd - Cve-2026-45586

web:nvd.nist.gov

Official websites use .gov A .gov website belongs to an official government organization in the United States.

2026-06-19 02:27 UTC
June 9, 2026—KB5094126 (OS Builds 26200.8655 and 26100.8655)

web:support.microsoft.com

Improvements This update includes new features and quality improvements that were part of the following update: May 12, 2026—KB5089549 (OS Builds 26200.8457 and 26100.8457) May 26, 2026—KB5089573 (OS Builds 26200.8524 and 26100.8524) This update addresses security vulnerabilities documented in the following guide: June 2026 Security Updates. The following summary outlines key quality ...

2026-06-19 02:27 UTC
2 New Microsoft Defender Zero-Days Exploited—Patch Now Rolling Out

web:tech.yahoo.com

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

2026-06-19 02:27 UTC
Microsoft is working on a patch for 'YellowKey ... - Computerworld

web:www.computerworld.com

Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...

2026-06-19 02:27 UTC
Microsoft working on a fix for RoguePlanet, a flaw that grants full PC ...

web:www.malwarebytes.com

Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.

2026-06-19 02:27 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-45868.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/pinctrl-single.c"
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            },
            {
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
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            {
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                },
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                },
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                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: single: fix refcount leak in pcs_add_gpio_func()\n\nof_parse_phandle_with_args() returns a device_node pointer with refcount\nincremented in gpiospec.np. The loop iterates through all phandles but\nnever releases the reference, causing a refcount leak on each iteration.\n\nAdd of_node_put() calls to release the reference after extracting the\nneeded arguments and on the error path when devm_kzalloc() fails.\n\nThis bug was detected by our static analysis tool and verified by my\ncode review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:15:48.311Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b"
        },
        {
          "url": "https://git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28e"
        },
        {
          "url": "https://git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753d"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823"
        },
        {
          "url": "https://git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296"
        }
      ],
      "title": "pinctrl: single: fix refcount leak in pcs_add_gpio_func()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45868",
    "datePublished": "2026-05-27T12:15:48.311Z",
    "dateReserved": "2026-05-13T15:03:33.080Z",
    "dateUpdated": "2026-05-27T12:15:48.311Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}