CVE-2026-93128 (GCVE-0-2026-93128)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-21 12:51
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86: lg-laptop: Fix LED resource handling The event notification callback might access kbd_backlight even when it was not successfully registered with the LED subsystem. The same happens inside acpi_remove(), where the LED devices are unregistered unconditionally. Fix this by tracking the availability of the kbd_backlight LED device and use devm_led_classdev_register() to let devres take care of unregistering the LED devices during removal. For this the parent device of the LED devices is changed to the native platform device.
References
Impacted products
Vendor Product Version
Linux Linux Version: ae26278829a80ad0e60ff004de71e9276cee5dc0
Version: ae26278829a80ad0e60ff004de71e9276cee5dc0
Version: ae26278829a80ad0e60ff004de71e9276cee5dc0
Version: ae26278829a80ad0e60ff004de71e9276cee5dc0
Version: ae26278829a80ad0e60ff004de71e9276cee5dc0
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/lg-laptop.c"
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "5.15"
            },
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              "version": "0",
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              "status": "unaffected",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: lg-laptop: Fix LED resource handling\n\nThe event notification callback might access kbd_backlight even\nwhen it was not successfully registered with the LED subsystem.\nThe same happens inside acpi_remove(), where the LED devices are\nunregistered unconditionally.\n\nFix this by tracking the availability of the kbd_backlight LED\ndevice and use devm_led_classdev_register() to let devres take\ncare of unregistering the LED devices during removal. For this\nthe parent device of the LED devices is changed to the native\nplatform device."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:51:59.813Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fc45f6e4b86c2fa1cf742c23a373d777d066aa25"
        },
        {
          "url": "https://git.kernel.org/stable/c/4fbfe3714f645b6c64c9ba8faa83b27e4c9f2edd"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a85e2d35e54248aca39bad4f4152ed34de1995f"
        },
        {
          "url": "https://git.kernel.org/stable/c/acc190322250562d5f28860f4ae1ebaf3e304fc2"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e91964aa74ab261aa15d9d96318eded2fd9d22a"
        }
      ],
      "title": "platform/x86: lg-laptop: Fix LED resource handling",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93128",
    "datePublished": "2026-09-17T16:11:31.933Z",
    "dateReserved": "2026-09-17T16:02:15.087Z",
    "dateUpdated": "2026-10-21T12:51:59.813Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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