Vulnerability-Lookup

GHSA-45HW-XGGF-P88G

Vulnerability from github – Published: 2026-04-03 18:31 – Updated: 2026-05-20 15:35

Details

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

soc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe()

In mpfs_sys_controller_probe(), if of_get_mtd_device_by_node() fails, the function returns immediately without freeing the allocated memory for sys_controller, leading to a memory leak.

Fix this by jumping to the out_free label to ensure the memory is properly freed.

Also, consolidate the error handling for the mbox_request_channel() failure case to use the same label.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23464"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T16:16:33Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe()\n\nIn mpfs_sys_controller_probe(), if of_get_mtd_device_by_node() fails,\nthe function returns immediately without freeing the allocated memory\nfor sys_controller, leading to a memory leak.\n\nFix this by jumping to the out_free label to ensure the memory is\nproperly freed.\n\nAlso, consolidate the error handling for the mbox_request_channel()\nfailure case to use the same label.",
  "id": "GHSA-45hw-xggf-p88g",
  "modified": "2026-05-20T15:35:21Z",
  "published": "2026-04-03T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23464"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/17c84fb7cf3971cc621646185d785670e9530ca1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a741f8cc6fe62542f955cd8d24933a1b6589cbd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da4b44c42f40501db35f5d0a6243708a061490a0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3dd5cffba07de6574165a72851471cd42cc6d15"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-23464 (GCVE-0-2026-23464)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-05-11 22:07

Title

soc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe()

Summary

In the Linux kernel, the following vulnerability has been resolved: soc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe() In mpfs_sys_controller_probe(), if of_get_mtd_device_by_node() fails, the function returns immediately without freeing the allocated memory for sys_controller, leading to a memory leak. Fix this by jumping to the out_free label to ensure the memory is properly freed. Also, consolidate the error handling for the mbox_request_channel() failure case to use the same label.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/da4b44c42f40501db…
https://git.kernel.org/stable/c/e3dd5cffba07de657…
https://git.kernel.org/stable/c/17c84fb7cf3971cc6…
https://git.kernel.org/stable/c/5a741f8cc6fe62542…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 742aa6c563d29c367edbf0ef7236a7a853ed9be4 , < da4b44c42f40501db35f5d0a6243708a061490a0 (git) Affected: 742aa6c563d29c367edbf0ef7236a7a853ed9be4 , < e3dd5cffba07de6574165a72851471cd42cc6d15 (git) Affected: 742aa6c563d29c367edbf0ef7236a7a853ed9be4 , < 17c84fb7cf3971cc621646185d785670e9530ca1 (git) Affected: 742aa6c563d29c367edbf0ef7236a7a853ed9be4 , < 5a741f8cc6fe62542f955cd8d24933a1b6589cbd (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.20 , ≤ 6.18.* (semver) Unaffected: 6.19.10 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/soc/microchip/mpfs-sys-controller.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "da4b44c42f40501db35f5d0a6243708a061490a0",
              "status": "affected",
              "version": "742aa6c563d29c367edbf0ef7236a7a853ed9be4",
              "versionType": "git"
            },
            {
              "lessThan": "e3dd5cffba07de6574165a72851471cd42cc6d15",
              "status": "affected",
              "version": "742aa6c563d29c367edbf0ef7236a7a853ed9be4",
              "versionType": "git"
            },
            {
              "lessThan": "17c84fb7cf3971cc621646185d785670e9530ca1",
              "status": "affected",
              "version": "742aa6c563d29c367edbf0ef7236a7a853ed9be4",
              "versionType": "git"
            },
            {
              "lessThan": "5a741f8cc6fe62542f955cd8d24933a1b6589cbd",
              "status": "affected",
              "version": "742aa6c563d29c367edbf0ef7236a7a853ed9be4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/soc/microchip/mpfs-sys-controller.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.78",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.20",
                  "versionStartIncluding": "6.8",
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                },
                {
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                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe()\n\nIn mpfs_sys_controller_probe(), if of_get_mtd_device_by_node() fails,\nthe function returns immediately without freeing the allocated memory\nfor sys_controller, leading to a memory leak.\n\nFix this by jumping to the out_free label to ensure the memory is\nproperly freed.\n\nAlso, consolidate the error handling for the mbox_request_channel()\nfailure case to use the same label."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:07:29.791Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/5a741f8cc6fe62542f955cd8d24933a1b6589cbd"
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      ],
      "title": "soc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23464",
    "datePublished": "2026-04-03T15:15:43.137Z",
    "dateReserved": "2026-01-13T15:37:46.021Z",
    "dateUpdated": "2026-05-11T22:07:29.791Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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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GHSA-45HW-XGGF-P88G

CVE-2026-23464 (GCVE-0-2026-23464)

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