CVE-2026-64238

{
  "id": "CVE-2026-64238",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-07-24T16:16:53.090",
  "lastModified": "2026-11-08T16:10:00.183",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: shared: fix deadlock on shared proxy's parent removal\n\nCommit 710abda58055 (\"gpio: shared: call gpio_chip::of_xlate() if set\")\nused the mutex embedded in struct gpio_shared_entry to protect the\noffset field which now can be modified after assignment. The critical\nsection however is too wide and introduced a potential deadlock on the\nremoval of the shared GPIO proxy's parent.\n\nMake the critical section shorter - only protect the offset when it's\nbeing read.\n\nWhile at it: mention the fact that the entry lock is now also used to\nprotect against concurrent access to the offset field in the structure's\ndocumentation."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ngpio: shared: corregir interbloqueo en la eliminación del padre del proxy compartido\n\nEl commit 710abda58055 (’gpio: shared: llamar a gpio_chip::of_xlate() si está configurado’) usó el mutex incrustado en la estructura gpio_shared_entry para proteger el campo offset, que ahora puede ser modificado después de la asignación. La sección crítica, sin embargo, es demasiado amplia e introdujo un interbloqueo potencial en la eliminación del padre del proxy GPIO compartido.\n\nHacer la sección crítica más corta - solo proteger el offset cuando está siendo leído.\n\nYa que estamos: mencionar el hecho de que el bloqueo de entrada ahora también se usa para proteger contra el acceso concurrente al campo offset en la documentación de la estructura."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/gpio/gpiolib-shared.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "710abda58055ed5eaa8958107633cc12a365c328",
              "lessThan": "a554dfcd30dd5e41d1d67387b3bb85cea83e12e1",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "710abda58055ed5eaa8958107633cc12a365c328",
              "lessThan": "a1b836607304f71051f9f9dcccf8b5097b86a1fb",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "28f488e7b327630686378bb1d24e22cfc3fc162d",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "6.19.12",
              "lessThan": "6.20",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/gpio/gpiolib-shared.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "7.0",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "7.0",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.0.12",
              "lessThanOrEqual": "7.0.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/a1b836607304f71051f9f9dcccf8b5097b86a1fb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    {
      "url": "https://git.kernel.org/stable/c/a554dfcd30dd5e41d1d67387b3bb85cea83e12e1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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}