Vulnerability-Lookup

GHSA-84VF-8M4P-C2C4

Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-06 12:30

Details

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

mfd: macsmc: Initialize mutex

Initialize struct apple_smc's mutex in apple_smc_probe(). Using the mutex uninitialized surprisingly resulted only in occasional NULL pointer dereferences in apple_smc_read() calls from the probe() functions of sub devices.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43160"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T12:16:33Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: macsmc: Initialize mutex\n\nInitialize struct apple_smc\u0027s mutex in apple_smc_probe(). Using the\nmutex uninitialized surprisingly resulted only in occasional NULL\npointer dereferences in apple_smc_read() calls from the probe()\nfunctions of sub devices.",
  "id": "GHSA-84vf-8m4p-c2c4",
  "modified": "2026-05-06T12:30:31Z",
  "published": "2026-05-06T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43160"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d5932588f029f7787f52c29174fead9bbc6b2cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/414f65d6736342c77d4ec5e7373039f4a09250dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-43160 (GCVE-0-2026-43160)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-06 11:27

Title

mfd: macsmc: Initialize mutex

Summary

In the Linux kernel, the following vulnerability has been resolved: mfd: macsmc: Initialize mutex Initialize struct apple_smc's mutex in apple_smc_probe(). Using the mutex uninitialized surprisingly resulted only in occasional NULL pointer dereferences in apple_smc_read() calls from the probe() functions of sub devices.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/a1e9e299c0d9ea42a…
	https://git.kernel.org/stable/c/2d5932588f029f778…
	https://git.kernel.org/stable/c/414f65d6736342c77…

Impacted products

Vendor

Product

Version

Linux

Affected: e038d985c9823a12cd64fa077d0c5aca2c644b67 , < a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb (git)
Affected: e038d985c9823a12cd64fa077d0c5aca2c644b67 , < 2d5932588f029f7787f52c29174fead9bbc6b2cf (git)
Affected: e038d985c9823a12cd64fa077d0c5aca2c644b67 , < 414f65d6736342c77d4ec5e7373039f4a09250dd (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mfd/macsmc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb",
              "status": "affected",
              "version": "e038d985c9823a12cd64fa077d0c5aca2c644b67",
              "versionType": "git"
            },
            {
              "lessThan": "2d5932588f029f7787f52c29174fead9bbc6b2cf",
              "status": "affected",
              "version": "e038d985c9823a12cd64fa077d0c5aca2c644b67",
              "versionType": "git"
            },
            {
              "lessThan": "414f65d6736342c77d4ec5e7373039f4a09250dd",
              "status": "affected",
              "version": "e038d985c9823a12cd64fa077d0c5aca2c644b67",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mfd/macsmc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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            {
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.16",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.19.6",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: macsmc: Initialize mutex\n\nInitialize struct apple_smc\u0027s mutex in apple_smc_probe(). Using the\nmutex uninitialized surprisingly resulted only in occasional NULL\npointer dereferences in apple_smc_read() calls from the probe()\nfunctions of sub devices."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T11:27:39.223Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      ],
      "title": "mfd: macsmc: Initialize mutex",
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    "cveId": "CVE-2026-43160",
    "datePublished": "2026-05-06T11:27:39.223Z",
    "dateReserved": "2026-05-01T14:12:55.990Z",
    "dateUpdated": "2026-05-06T11:27:39.223Z",
    "state": "PUBLISHED"
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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-84VF-8M4P-C2C4

CVE-2026-43160 (GCVE-0-2026-43160)

Tags

Sightings

Nomenclature