Vulnerability-Lookup

FKIE_CVE-2026-72144

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-laptop: fix missing cleanups in init error path dell_init() initializes several resources after dell_setup_rfkill(), including the optional touchpad LED, keyboard backlight LED, battery hook, debugfs directory and dell-laptop notifier. If a later LED or backlight registration fails, the error path only tears down the battery hook and rfkill resources. This leaves the notifier, debugfs directory, keyboard backlight LED and optional touchpad LED registered after dell_init() returns an error. Add the missing cleanup calls before tearing down rfkill.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1e41ca4a7fba2e680d6950e9511245255fffa46c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6bd76d5421a72d2526c9be8f01f55bee960f899f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b351e082711d12f075a36a6cd67709693689315f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e4908b3bed755f73870416b971e162a8d0ef0aef

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-laptop.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e4908b3bed755f73870416b971e162a8d0ef0aef",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "6bd76d5421a72d2526c9be8f01f55bee960f899f",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "1e41ca4a7fba2e680d6950e9511245255fffa46c",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "b351e082711d12f075a36a6cd67709693689315f",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-laptop.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.37"
            },
            {
              "lessThan": "2.6.37",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\nplatform/x86: dell-laptop: fix missing cleanups in init error path\n\ndell_init() initializes several resources after dell_setup_rfkill(),\nincluding the optional touchpad LED, keyboard backlight LED, battery\nhook, debugfs directory and dell-laptop notifier.\n\nIf a later LED or backlight registration fails, the error path only\ntears down the battery hook and rfkill resources. This leaves the\nnotifier, debugfs directory, keyboard backlight LED and optional\ntouchpad LED registered after dell_init() returns an error.\n\nAdd the missing cleanup calls before tearing down rfkill."
    }
  ],
  "id": "CVE-2026-72144",
  "lastModified": "2026-08-17T06:18:14.447",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-08-15T06:21:32.067",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1e41ca4a7fba2e680d6950e9511245255fffa46c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6bd76d5421a72d2526c9be8f01f55bee960f899f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b351e082711d12f075a36a6cd67709693689315f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4908b3bed755f73870416b971e162a8d0ef0aef"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-72144 (GCVE-0-2026-72144)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-08-17 05:40

Title

platform/x86: dell-laptop: fix missing cleanups in init error path

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/e4908b3bed755f738…
https://git.kernel.org/stable/c/6bd76d5421a72d252…
https://git.kernel.org/stable/c/1e41ca4a7fba2e680…
https://git.kernel.org/stable/c/b351e082711d12f07…
https://git.kernel.org/stable/c/6e9cab2247e5b243a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 037accfa14b28ecf49d9060063929c4b4cde373f , < e4908b3bed755f73870416b971e162a8d0ef0aef (git) Affected: 037accfa14b28ecf49d9060063929c4b4cde373f , < 6bd76d5421a72d2526c9be8f01f55bee960f899f (git) Affected: 037accfa14b28ecf49d9060063929c4b4cde373f , < 1e41ca4a7fba2e680d6950e9511245255fffa46c (git) Affected: 037accfa14b28ecf49d9060063929c4b4cde373f , < b351e082711d12f075a36a6cd67709693689315f (git) Affected: 037accfa14b28ecf49d9060063929c4b4cde373f , < 6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a (git)
Linux	Linux	Affected: 2.6.37 Unaffected: 0 , < 2.6.37 (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-laptop.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e4908b3bed755f73870416b971e162a8d0ef0aef",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "6bd76d5421a72d2526c9be8f01f55bee960f899f",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "1e41ca4a7fba2e680d6950e9511245255fffa46c",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "b351e082711d12f075a36a6cd67709693689315f",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            },
            {
              "lessThan": "6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a",
              "status": "affected",
              "version": "037accfa14b28ecf49d9060063929c4b4cde373f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-laptop.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.37"
            },
            {
              "lessThan": "2.6.37",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.148",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-laptop: fix missing cleanups in init error path\n\ndell_init() initializes several resources after dell_setup_rfkill(),\nincluding the optional touchpad LED, keyboard backlight LED, battery\nhook, debugfs directory and dell-laptop notifier.\n\nIf a later LED or backlight registration fails, the error path only\ntears down the battery hook and rfkill resources. This leaves the\nnotifier, debugfs directory, keyboard backlight LED and optional\ntouchpad LED registered after dell_init() returns an error.\n\nAdd the missing cleanup calls before tearing down rfkill."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is only reachable on affected Dell laptops through local kernel interfaces\u2014late_initcall dell_init() and, after the broken teardown, orphaned sysfs LED nodes, debugfs files, and Dell WMI keyboard-backlight notifier callbacks. There is no network, Bluetooth, or remote protocol path into dell-laptop.c.\nAC:L - On Dell hardware where micmute/mute/backlight registration or dell_get_intensity() fails after earlier setup succeeds, dell_init() deterministically enters the incomplete fail_led path; subsequent notifier delivery or sysfs access to the still-registered LED/debugfs objects reliably exercises freed platform_device state without races.\nPR:L - Exploitation requires only a local session on the Dell system: world-readable LED sysfs attributes (DEVICE_ATTR_RW brightness) and Dell WMI KEY_KBDILLUMTOGGLE events invoke the dangling notifier/LED callbacks without CAP_SYS_ADMIN, real root, or user-namespace capabilities.\nUI:N - After boot leaves the partial-init state, a local attacker triggers the bug themselves by reading/writing orphaned /sys/class/leds entries or generating keyboard-backlight WMI events; no separate victim action, administrator approval, or privileged helper is required.\nS:U - The use-after-free and heap corruption occur entirely within the host kernel\u0027s memory and security authority on the same Dell machine; this is a standard local kernel compromise path without VM escape, IOMMU bypass, or sandbox-boundary crossing.\nC:H - platform_device_del() runs while keyboard/touchpad LED classdevs and the dell_laptop notifier remain registered against the freed platform device, creating a use-after-free whose sysfs/WMI callbacks can read adjacent slab contents and disclose kernel memory to userspace.\nI:H - Orphaned led_classdev and notifier objects parented to the deleted platform_device let attacker-influenced brightness/WMI activity drive callbacks and sysfs notifications on freed device structures, enabling heap grooming and arbitrary kernel writes suitable for control-flow hijacking.\nA:H - Dereferencing the dangling platform_device/LED device objects from notifier callbacks or sysfs brightness operations reliably provokes kernel oops/panic on affected Dell laptops, and the underlying use-after-free can crash the system even when full exploitation is not attempted."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:40:53.644Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e4908b3bed755f73870416b971e162a8d0ef0aef"
        },
        {
          "url": "https://git.kernel.org/stable/c/6bd76d5421a72d2526c9be8f01f55bee960f899f"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e41ca4a7fba2e680d6950e9511245255fffa46c"
        },
        {
          "url": "https://git.kernel.org/stable/c/b351e082711d12f075a36a6cd67709693689315f"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e9cab2247e5b243ae2d907ce7c948a8a9c8d61a"
        }
      ],
      "title": "platform/x86: dell-laptop: fix missing cleanups in init error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72144",
    "datePublished": "2026-08-15T05:53:16.974Z",
    "dateReserved": "2026-08-09T03:40:39.908Z",
    "dateUpdated": "2026-08-17T05:40:53.644Z",
    "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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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FKIE_CVE-2026-72144

CVE-2026-72144 (GCVE-0-2026-72144)

Tags

Sightings

Nomenclature