Vulnerability-Lookup

GHSA-M8C9-PVW4-86CP

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45868"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:00Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-m8c9-pvw4-86cp",
  "modified": "2026-05-27T15:33:13Z",
  "published": "2026-05-27T15:33:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45868"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/191bfd5710d6a7f48ba4315d8d3e908dcc15243c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45868 (GCVE-0-2026-45868)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:15 – Updated: 2026-05-27 12:15

Title

pinctrl: single: fix refcount leak in pcs_add_gpio_func()

Summary

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.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/191bfd5710d6a7f48…
https://git.kernel.org/stable/c/3e3b28bb0b6ddc521…
https://git.kernel.org/stable/c/456a60d06c09a9268…
https://git.kernel.org/stable/c/99cc7352156c65201…
https://git.kernel.org/stable/c/7814b1431848854b5…
https://git.kernel.org/stable/c/e2e367e56bacb93ce…
https://git.kernel.org/stable/c/5b9e84d27e310f22c…
https://git.kernel.org/stable/c/353353309b0f7afa4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 191bfd5710d6a7f48ba4315d8d3e908dcc15243c (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 456a60d06c09a92680dc35fabca68024badcc28e (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 99cc7352156c65201c675f750e0e77c4c73d93f5 (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 7814b1431848854b56717086e2b61bea3c59753d (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 (git) Affected: a1a277eb76b3507df7c41774048a644aa4dfd096 , < 353353309b0f7afa407df29e455f9d15b5acc296 (git)
Linux	Linux	Affected: 3.10 Unaffected: 0 , < 3.10 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M8C9-PVW4-86CP

CVE-2026-45868 (GCVE-0-2026-45868)

Tags

Sightings

Nomenclature