Vulnerability-Lookup

GHSA-PW7F-JVGM-W775

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-04-28 18:30

Details

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

HID: magicmouse: avoid memory leak in magicmouse_report_fixup()

The magicmouse_report_fixup() function was returning a newly kmemdup()-allocated buffer, but never freeing it.

The caller of report_fixup() does not take ownership of the returned pointer, but it is permitted to return a sub-portion of the input rdesc, whose lifetime is managed by the caller.

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-2026-31522"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:52Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: avoid memory leak in magicmouse_report_fixup()\n\nThe magicmouse_report_fixup() function was returning a\nnewly kmemdup()-allocated buffer, but never freeing it.\n\nThe caller of report_fixup() does not take ownership of the returned\npointer, but it *is* permitted to return a sub-portion of the input\nrdesc, whose lifetime is managed by the caller.",
  "id": "GHSA-pw7f-jvgm-w775",
  "modified": "2026-04-28T18:30:29Z",
  "published": "2026-04-22T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31522"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/136f605e246b4bfe7ac2259471d1ff814aed0084"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79e5dcc95d9abed6f8203cfd529f4ec71f0e505d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7edfe4346b052b708645d0acc0f186425766b785"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d84c21aabaab517b9aaf9bc1d785922cb9db2f31"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa95b0146358b49f9858139b67314591fd5871b0"
    }
  ],
  "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-2026-31522 (GCVE-0-2026-31522)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-04-23 15:18

Title

HID: magicmouse: avoid memory leak in magicmouse_report_fixup()

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: avoid memory leak in magicmouse_report_fixup() The magicmouse_report_fixup() function was returning a newly kmemdup()-allocated buffer, but never freeing it. The caller of report_fixup() does not take ownership of the returned pointer, but it *is* permitted to return a sub-portion of the input rdesc, whose lifetime is managed by the caller.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/579c4c9857acdc838…
	https://git.kernel.org/stable/c/d84c21aabaab517b9…
	https://git.kernel.org/stable/c/7edfe4346b052b708…
	https://git.kernel.org/stable/c/79e5dcc95d9abed6f…
	https://git.kernel.org/stable/c/136f605e246b4bfe7…
	https://git.kernel.org/stable/c/fa95b0146358b49f9…
	https://git.kernel.org/stable/c/91e8c6e601bdc1ccd…

Impacted products

Vendor

Product

Version

Linux

Affected: e6ad399596bd234be4722022146e33e15c7e424d , < 579c4c9857acdc8380fa99803f355f878bd766cb (git)
Affected: 0b91b4e4dae63cd43871fc2012370b86ee588f91 , < d84c21aabaab517b9aaf9bc1d785922cb9db2f31 (git)
Affected: 0b91b4e4dae63cd43871fc2012370b86ee588f91 , < 7edfe4346b052b708645d0acc0f186425766b785 (git)
Affected: 0b91b4e4dae63cd43871fc2012370b86ee588f91 , < 79e5dcc95d9abed6f8203cfd529f4ec71f0e505d (git)
Affected: 0b91b4e4dae63cd43871fc2012370b86ee588f91 , < 136f605e246b4bfe7ac2259471d1ff814aed0084 (git)
Affected: 0b91b4e4dae63cd43871fc2012370b86ee588f91 , < fa95b0146358b49f9858139b67314591fd5871b0 (git)
Affected: 0b91b4e4dae63cd43871fc2012370b86ee588f91 , < 91e8c6e601bdc1ccdf886479b6513c01c7e51c2c (git)
Affected: c394bd1bc8537e61593b6b6799e01495c7cf9008 (git)

Linux

Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.131 , ≤ 6.6.* (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
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    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-magicmouse.c"
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              "versionType": "git"
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.1.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.131",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "5.15.17",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "6.1.168",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: magicmouse: avoid memory leak in magicmouse_report_fixup()\n\nThe magicmouse_report_fixup() function was returning a\nnewly kmemdup()-allocated buffer, but never freeing it.\n\nThe caller of report_fixup() does not take ownership of the returned\npointer, but it *is* permitted to return a sub-portion of the input\nrdesc, whose lifetime is managed by the caller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-23T15:18:39.828Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/579c4c9857acdc8380fa99803f355f878bd766cb"
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        {
          "url": "https://git.kernel.org/stable/c/91e8c6e601bdc1ccdf886479b6513c01c7e51c2c"
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    "cveId": "CVE-2026-31522",
    "datePublished": "2026-04-22T13:54:36.885Z",
    "dateReserved": "2026-03-09T15:48:24.110Z",
    "dateUpdated": "2026-04-23T15:18:39.828Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PW7F-JVGM-W775

CVE-2026-31522 (GCVE-0-2026-31522)

Tags

Sightings

Nomenclature