Vulnerability-Lookup

GHSA-XF52-GG4R-HJ5F

Vulnerability from github – Published: 2026-06-03 18:33 – Updated: 2026-06-09 21:32

Details

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

gpio: cdev: Avoid NULL dereference in linehandle_create()

In linehandle_create(), there is a statement like this: retain_and_null_ptr(lh);

Soon after, there is a debug printout that dereferences "lh", which will crash things.

Avoid the crash by using handlereq.lines, which is the same value.

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-2026-46258"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-03T18:16:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: cdev: Avoid NULL dereference in linehandle_create()\n\nIn linehandle_create(), there is a statement like this:\n  retain_and_null_ptr(lh);\n\nSoon after, there is a debug printout that dereferences \"lh\", which\nwill crash things.\n\nAvoid the crash by using handlereq.lines, which is the same value.",
  "id": "GHSA-xf52-gg4r-hj5f",
  "modified": "2026-06-09T21:32:21Z",
  "published": "2026-06-03T18:33:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46258"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6af6be278e3ba2ffb6af5b796c89dfb3f5d9063e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87b9d7a4cfbed5f42af440372026270af997c766"
    }
  ],
  "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-2026-46258 (GCVE-0-2026-46258)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:49 – Updated: 2026-06-03 15:49

Title

gpio: cdev: Avoid NULL dereference in linehandle_create()

Summary

In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: Avoid NULL dereference in linehandle_create() In linehandle_create(), there is a statement like this: retain_and_null_ptr(lh); Soon after, there is a debug printout that dereferences "lh", which will crash things. Avoid the crash by using handlereq.lines, which is the same value.

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/87b9d7a4cfbed5f42…
https://git.kernel.org/stable/c/6af6be278e3ba2ffb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: da7e394bf58f94e9783379fef7c7fb4411b03208 , < 87b9d7a4cfbed5f42af440372026270af997c766 (git) Affected: da7e394bf58f94e9783379fef7c7fb4411b03208 , < 6af6be278e3ba2ffb6af5b796c89dfb3f5d9063e (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpiolib-cdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "87b9d7a4cfbed5f42af440372026270af997c766",
              "status": "affected",
              "version": "da7e394bf58f94e9783379fef7c7fb4411b03208",
              "versionType": "git"
            },
            {
              "lessThan": "6af6be278e3ba2ffb6af5b796c89dfb3f5d9063e",
              "status": "affected",
              "version": "da7e394bf58f94e9783379fef7c7fb4411b03208",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpiolib-cdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "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": "6.19.4",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: cdev: Avoid NULL dereference in linehandle_create()\n\nIn linehandle_create(), there is a statement like this:\n  retain_and_null_ptr(lh);\n\nSoon after, there is a debug printout that dereferences \"lh\", which\nwill crash things.\n\nAvoid the crash by using handlereq.lines, which is the same value."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-03T15:49:55.372Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/87b9d7a4cfbed5f42af440372026270af997c766"
        },
        {
          "url": "https://git.kernel.org/stable/c/6af6be278e3ba2ffb6af5b796c89dfb3f5d9063e"
        }
      ],
      "title": "gpio: cdev: Avoid NULL dereference in linehandle_create()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46258",
    "datePublished": "2026-06-03T15:49:55.372Z",
    "dateReserved": "2026-05-13T15:03:33.108Z",
    "dateUpdated": "2026-06-03T15:49:55.372Z",
    "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-XF52-GG4R-HJ5F

CVE-2026-46258 (GCVE-0-2026-46258)

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