FKIE_CVE-2026-99257

Vulnerability from fkie_nvd - Published: 2026-11-03 12:17 - Updated: 2026-11-03 12:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: gpio: shared: gracefully handle no-device lookup of shared GPIOs We use platform lookup tables for shared GPIOs. This mechanism needs a struct device to work so fwnode-based lookup with no device associated currently causes a NULL-pointer deference. Adding this functionality will require a larger rework and it has never worked anyway so add a check that allows the kernel to gracefully handle this situation with an error ahead of implementing that functionality as a new feature.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf73c3fc03c43a8a86fd487c62390b4744eff9ec
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpiolib-shared.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1",
              "status": "affected",
              "version": "a060b8c511abb0997381b397e52149a5e3e5259a",
              "versionType": "git"
            },
            {
              "lessThan": "cf73c3fc03c43a8a86fd487c62390b4744eff9ec",
              "status": "affected",
              "version": "a060b8c511abb0997381b397e52149a5e3e5259a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpiolib-shared.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": "7.2.*",
              "status": "unaffected",
              "version": "7.2.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: shared: gracefully handle no-device lookup of shared GPIOs\n\nWe use platform lookup tables for shared GPIOs. This mechanism needs a\nstruct device to work so fwnode-based lookup with no device associated\ncurrently causes a NULL-pointer deference.\n\nAdding this functionality will require a larger rework and it has never\nworked anyway so add a check that allows the kernel to gracefully handle\nthis situation with an error ahead of implementing that functionality as\na new feature."
    }
  ],
  "id": "CVE-2026-99257",
  "lastModified": "2026-11-03T12:17:32.590",
  "metrics": {},
  "published": "2026-11-03T12:17:32.590",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cf73c3fc03c43a8a86fd487c62390b4744eff9ec"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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