Vulnerability-Lookup

GHSA-GW83-JH7X-85P6

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:

gpib: Fix memory leak in ni_usb_init()

In ni_usb_init(), if ni_usb_setup_init() fails, the function returns -EFAULT without freeing the allocated writes buffer, leading to a memory leak.

Additionally, ni_usb_setup_init() returns 0 on failure, which causes ni_usb_init() to return -EFAULT, an inappropriate error code for this situation.

Fix the leak by freeing writes in the error path. Modify ni_usb_setup_init() to return -EINVAL on failure and propagate this error code in ni_usb_init().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45939"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:10Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpib: Fix memory leak in ni_usb_init()\n\nIn ni_usb_init(), if ni_usb_setup_init() fails, the function returns\n-EFAULT without freeing the allocated writes buffer, leading to a\nmemory leak.\n\nAdditionally, ni_usb_setup_init() returns 0 on failure, which causes\nni_usb_init() to return -EFAULT, an inappropriate error code for this\nsituation.\n\nFix the leak by freeing writes in the error path. Modify\nni_usb_setup_init() to return -EINVAL on failure and propagate this\nerror code in ni_usb_init().",
  "id": "GHSA-gw83-jh7x-85p6",
  "modified": "2026-05-27T15:33:17Z",
  "published": "2026-05-27T15:33:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45939"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c97fcfb7a62dea893104a046d544da8ac23370b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b89921eed8cf2d97250bac4be38dbcfbf048b586"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c899d4b62c0757a280831e89c1f3801b597e8f38"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45939 (GCVE-0-2026-45939)

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

Title

gpib: Fix memory leak in ni_usb_init()

Summary

In the Linux kernel, the following vulnerability has been resolved: gpib: Fix memory leak in ni_usb_init() In ni_usb_init(), if ni_usb_setup_init() fails, the function returns -EFAULT without freeing the allocated writes buffer, leading to a memory leak. Additionally, ni_usb_setup_init() returns 0 on failure, which causes ni_usb_init() to return -EFAULT, an inappropriate error code for this situation. Fix the leak by freeing writes in the error path. Modify ni_usb_setup_init() to return -EINVAL on failure and propagate this error code in ni_usb_init().

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/9c97fcfb7a62dea89…
https://git.kernel.org/stable/c/c899d4b62c0757a28…
https://git.kernel.org/stable/c/b89921eed8cf2d972…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4e127de14fa78bcd98c6459b0b984b8266cd0203 , < 9c97fcfb7a62dea893104a046d544da8ac23370b (git) Affected: 4e127de14fa78bcd98c6459b0b984b8266cd0203 , < c899d4b62c0757a280831e89c1f3801b597e8f38 (git) Affected: 4e127de14fa78bcd98c6459b0b984b8266cd0203 , < b89921eed8cf2d97250bac4be38dbcfbf048b586 (git)
Linux	Linux	Affected: 6.13 Unaffected: 0 , < 6.13 (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/gpib/ni_usb/ni_usb_gpib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9c97fcfb7a62dea893104a046d544da8ac23370b",
              "status": "affected",
              "version": "4e127de14fa78bcd98c6459b0b984b8266cd0203",
              "versionType": "git"
            },
            {
              "lessThan": "c899d4b62c0757a280831e89c1f3801b597e8f38",
              "status": "affected",
              "version": "4e127de14fa78bcd98c6459b0b984b8266cd0203",
              "versionType": "git"
            },
            {
              "lessThan": "b89921eed8cf2d97250bac4be38dbcfbf048b586",
              "status": "affected",
              "version": "4e127de14fa78bcd98c6459b0b984b8266cd0203",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpib/ni_usb/ni_usb_gpib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "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": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpib: Fix memory leak in ni_usb_init()\n\nIn ni_usb_init(), if ni_usb_setup_init() fails, the function returns\n-EFAULT without freeing the allocated writes buffer, leading to a\nmemory leak.\n\nAdditionally, ni_usb_setup_init() returns 0 on failure, which causes\nni_usb_init() to return -EFAULT, an inappropriate error code for this\nsituation.\n\nFix the leak by freeing writes in the error path. Modify\nni_usb_setup_init() to return -EINVAL on failure and propagate this\nerror code in ni_usb_init()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:55.481Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9c97fcfb7a62dea893104a046d544da8ac23370b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c899d4b62c0757a280831e89c1f3801b597e8f38"
        },
        {
          "url": "https://git.kernel.org/stable/c/b89921eed8cf2d97250bac4be38dbcfbf048b586"
        }
      ],
      "title": "gpib: Fix memory leak in ni_usb_init()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45939",
    "datePublished": "2026-05-27T12:17:55.481Z",
    "dateReserved": "2026-05-13T15:03:33.087Z",
    "dateUpdated": "2026-05-27T12:17:55.481Z",
    "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-GW83-JH7X-85P6

CVE-2026-45939 (GCVE-0-2026-45939)

Tags

Sightings

Nomenclature