Vulnerability-Lookup

GHSA-PP3V-C45M-5X73

Vulnerability from github – Published: 2026-10-23 15:31 – Updated: 2026-10-23 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

regulator: of: fill in supply names in of_regulator_bulk_get_all()

of_regulator_bulk_get_all() returns an array it allocated itself, and fills in only the consumer of each entry. Every other way of getting a bulk array has the supply name set, because the caller provides it, and the core expects it to be there: regulator_bulk_enable() prints it when a supply fails to enable, so a caller that hands such an array to it dereferences uninitialised memory on that path.

Copy each name into the array's own allocation, right behind the entries, so that it shares the array's lifetime and callers still have nothing extra to free. That also retires the fixed 64 byte stack buffer the names were assembled in, which is_supply_name() never bounded the copy against.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-99021"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-23T13:17:25Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: of: fill in supply names in of_regulator_bulk_get_all()\n\nof_regulator_bulk_get_all() returns an array it allocated itself, and\nfills in only the consumer of each entry. Every other way of getting a\nbulk array has the supply name set, because the caller provides it, and\nthe core expects it to be there: regulator_bulk_enable() prints it when\na supply fails to enable, so a caller that hands such an array to it\ndereferences uninitialised memory on that path.\n\nCopy each name into the array\u0027s own allocation, right behind the\nentries, so that it shares the array\u0027s lifetime and callers still have\nnothing extra to free. That also retires the fixed 64 byte stack buffer\nthe names were assembled in, which is_supply_name() never bounded the\ncopy against.",
  "id": "GHSA-pp3v-c45m-5x73",
  "modified": "2026-10-23T15:31:35Z",
  "published": "2026-10-23T15:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99021"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82ac8c4939bdbd064b4f54a580fbe4baf0d60e41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3384ec2516a7cc567bd7c09029282494469b247"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2151c29cec73f6cc70abf1c7cbc7b9b202489f5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-99021 (GCVE-0-2026-99021)

Vulnerability from cvelistv5 – Published: 2026-10-23 12:21 – Updated: 2026-10-23 12:21

Title

regulator: of: fill in supply names in of_regulator_bulk_get_all()

Summary

In the Linux kernel, the following vulnerability has been resolved: regulator: of: fill in supply names in of_regulator_bulk_get_all() of_regulator_bulk_get_all() returns an array it allocated itself, and fills in only the consumer of each entry. Every other way of getting a bulk array has the supply name set, because the caller provides it, and the core expects it to be there: regulator_bulk_enable() prints it when a supply fails to enable, so a caller that hands such an array to it dereferences uninitialised memory on that path. Copy each name into the array's own allocation, right behind the entries, so that it shares the array's lifetime and callers still have nothing extra to free. That also retires the fixed 64 byte stack buffer the names were assembled in, which is_supply_name() never bounded the copy against.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7056 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/82ac8c4939bdbd064…
https://git.kernel.org/stable/c/a3384ec2516a7cc56…
https://git.kernel.org/stable/c/e2151c29cec73f6cc…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7 , < 82ac8c4939bdbd064b4f54a580fbe4baf0d60e41 (git) Affected: 27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7 , < a3384ec2516a7cc567bd7c09029282494469b247 (git) Affected: 27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7 , < e2151c29cec73f6cc70abf1c7cbc7b9b202489f5 (git) Affected: fd5015686d898db6642e05cfa1cc4e1289631ecb (git) Affected: 6.1.110 , < 6.2 (semver)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.18.57 , ≤ 6.18.* (semver) Unaffected: 7.2.11 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/regulator/of_regulator.c"
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          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
              "lessThan": "a3384ec2516a7cc567bd7c09029282494469b247",
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              "version": "27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7",
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            },
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              "version": "6.1.110",
              "versionType": "semver"
            }
          ]
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          "programFiles": [
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          ],
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          "versions": [
            {
              "status": "affected",
              "version": "6.2"
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              "version": "0",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
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              "version": "7.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
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        }
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    "datePublished": "2026-10-23T12:21:00.951Z",
    "dateReserved": "2026-09-25T10:25:14.386Z",
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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.

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