Vulnerability-Lookup

GHSA-2GPX-GJMM-6PFF

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:

RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler

The UVERBS_HANDLER(MLX5_IB_METHOD_GET_DATA_DIRECT_SYSFS_PATH) function allocates memory for the device path using kobject_get_path(). If the length of the device path exceeds the output buffer length, the function returns -ENOSPC but does not free the allocated memory, resulting in a memory leak.

Add a kfree() call to the error path to ensure the allocated memory is properly freed.

Compile tested only. Issue found using a prototype static analysis tool and code review.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45922"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler\n\nThe UVERBS_HANDLER(MLX5_IB_METHOD_GET_DATA_DIRECT_SYSFS_PATH) function\nallocates memory for the device path using kobject_get_path(). If the\nlength of the device path exceeds the output buffer length, the function\nreturns -ENOSPC but does not free the allocated memory, resulting in a\nmemory leak.\n\nAdd a kfree() call to the error path to ensure the allocated memory is\nproperly freed.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.",
  "id": "GHSA-2gpx-gjmm-6pff",
  "modified": "2026-05-27T15:33:16Z",
  "published": "2026-05-27T15:33:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45922"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b9d253908478f504297ac283c514e5953ddafa6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3a10eca24fcfe913c0875e620f19596001bd6dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee998cdbff6680891b0efd9d6ce53a388e5342c3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45922 (GCVE-0-2026-45922)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-05-27 12:17

Title

RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler The UVERBS_HANDLER(MLX5_IB_METHOD_GET_DATA_DIRECT_SYSFS_PATH) function allocates memory for the device path using kobject_get_path(). If the length of the device path exceeds the output buffer length, the function returns -ENOSPC but does not free the allocated memory, resulting in a memory leak. Add a kfree() call to the error path to ensure the allocated memory is properly freed. Compile tested only. Issue found using a prototype static analysis tool and code review.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/ee998cdbff6680891…
https://git.kernel.org/stable/c/b2bc649c18fbe8a7f…
https://git.kernel.org/stable/c/b3a10eca24fcfe913…
https://git.kernel.org/stable/c/9b9d253908478f504…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ec7ad6530909983c8736c80af46e3529ce7bab55 , < ee998cdbff6680891b0efd9d6ce53a388e5342c3 (git) Affected: ec7ad6530909983c8736c80af46e3529ce7bab55 , < b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2 (git) Affected: ec7ad6530909983c8736c80af46e3529ce7bab55 , < b3a10eca24fcfe913c0875e620f19596001bd6dc (git) Affected: ec7ad6530909983c8736c80af46e3529ce7bab55 , < 9b9d253908478f504297ac283c514e5953ddafa6 (git)
Linux	Linux	Affected: 6.12 Unaffected: 0 , < 6.12 (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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/mlx5/std_types.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ee998cdbff6680891b0efd9d6ce53a388e5342c3",
              "status": "affected",
              "version": "ec7ad6530909983c8736c80af46e3529ce7bab55",
              "versionType": "git"
            },
            {
              "lessThan": "b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2",
              "status": "affected",
              "version": "ec7ad6530909983c8736c80af46e3529ce7bab55",
              "versionType": "git"
            },
            {
              "lessThan": "b3a10eca24fcfe913c0875e620f19596001bd6dc",
              "status": "affected",
              "version": "ec7ad6530909983c8736c80af46e3529ce7bab55",
              "versionType": "git"
            },
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              "versionType": "git"
            }
          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/mlx5/std_types.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "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": "6.12.75",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.12",
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                },
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              "operator": "OR"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler\n\nThe UVERBS_HANDLER(MLX5_IB_METHOD_GET_DATA_DIRECT_SYSFS_PATH) function\nallocates memory for the device path using kobject_get_path(). If the\nlength of the device path exceeds the output buffer length, the function\nreturns -ENOSPC but does not free the allocated memory, resulting in a\nmemory leak.\n\nAdd a kfree() call to the error path to ensure the allocated memory is\nproperly freed.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:41.431Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/9b9d253908478f504297ac283c514e5953ddafa6"
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      ],
      "title": "RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45922",
    "datePublished": "2026-05-27T12:17:41.431Z",
    "dateReserved": "2026-05-13T15:03:33.085Z",
    "dateUpdated": "2026-05-27T12:17:41.431Z",
    "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-2GPX-GJMM-6PFF

CVE-2026-45922 (GCVE-0-2026-45922)

Tags

Sightings

Nomenclature