Vulnerability-Lookup

FKIE_CVE-2026-90249

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes The IIO core does not filter duplicate writes to the event enable attribute, so writing the same value twice invokes write_event_config() twice. Enabling twice leaks a runtime PM reference, preventing the device from ever suspending again; disabling twice underflows the usage count and triggers a "Runtime PM usage count underflow" warning. Bail out early when the requested state matches the current state. While at it, switch to pm_runtime_resume_and_get() so a failed resume is propagated to userspace instead of silently marking the event enabled.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0fc740c25c9abb25113398ebb58e2f2ce57741a7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/470edb012b1d9a4fba1cd59e329e60f0798c791a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/56fe8e5f313a64e458bb6f8b982de925345e21a7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/579c049b4cb6fc72ce2c505fc5334540be0efcd3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/685d9d1e5c47e024413981fb7eddab86132b04a1
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/70b9482926ca92862460e659f5e5fde99ae0b4fa
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8e76ab81319858736ccf23141e9415f9a1869337
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b2d7a97d75b648a643f60d77f4d6d70161268855

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/light/gp2ap002.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b2d7a97d75b648a643f60d77f4d6d70161268855",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "685d9d1e5c47e024413981fb7eddab86132b04a1",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "56fe8e5f313a64e458bb6f8b982de925345e21a7",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "8e76ab81319858736ccf23141e9415f9a1869337",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "70b9482926ca92862460e659f5e5fde99ae0b4fa",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "0fc740c25c9abb25113398ebb58e2f2ce57741a7",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "470edb012b1d9a4fba1cd59e329e60f0798c791a",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "579c049b4cb6fc72ce2c505fc5334540be0efcd3",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/light/gp2ap002.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "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\niio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes\n\nThe IIO core does not filter duplicate writes to the event enable\nattribute, so writing the same value twice invokes\nwrite_event_config() twice. Enabling twice leaks a runtime PM\nreference, preventing the device from ever suspending again;\ndisabling twice underflows the usage count and triggers a\n\"Runtime PM usage count underflow\" warning.\n\nBail out early when the requested state matches the current state.\nWhile at it, switch to pm_runtime_resume_and_get() so a failed\nresume is propagated to userspace instead of silently marking the\nevent enabled."
    }
  ],
  "id": "CVE-2026-90249",
  "lastModified": "2026-09-17T17:17:21.097",
  "metrics": {},
  "published": "2026-09-17T17:17:21.097",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0fc740c25c9abb25113398ebb58e2f2ce57741a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/470edb012b1d9a4fba1cd59e329e60f0798c791a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/56fe8e5f313a64e458bb6f8b982de925345e21a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/579c049b4cb6fc72ce2c505fc5334540be0efcd3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/685d9d1e5c47e024413981fb7eddab86132b04a1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/70b9482926ca92862460e659f5e5fde99ae0b4fa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8e76ab81319858736ccf23141e9415f9a1869337"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b2d7a97d75b648a643f60d77f4d6d70161268855"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-90249 (GCVE-0-2026-90249)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:07 – Updated: 2026-09-17 16:07

Title

iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b2d7a97d75b648a64…
https://git.kernel.org/stable/c/685d9d1e5c47e0244…
https://git.kernel.org/stable/c/56fe8e5f313a64e45…
https://git.kernel.org/stable/c/8e76ab81319858736…
https://git.kernel.org/stable/c/70b9482926ca92862…
https://git.kernel.org/stable/c/0fc740c25c9abb251…
https://git.kernel.org/stable/c/470edb012b1d9a4fb…
https://git.kernel.org/stable/c/579c049b4cb6fc72c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < b2d7a97d75b648a643f60d77f4d6d70161268855 (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 685d9d1e5c47e024413981fb7eddab86132b04a1 (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 56fe8e5f313a64e458bb6f8b982de925345e21a7 (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 8e76ab81319858736ccf23141e9415f9a1869337 (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 70b9482926ca92862460e659f5e5fde99ae0b4fa (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 0fc740c25c9abb25113398ebb58e2f2ce57741a7 (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 470edb012b1d9a4fba1cd59e329e60f0798c791a (git) Affected: 97d642e23037c5545266f9564c9b81e6db81b122 , < 579c049b4cb6fc72ce2c505fc5334540be0efcd3 (git)
Linux	Linux	Affected: 5.7 Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/light/gp2ap002.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b2d7a97d75b648a643f60d77f4d6d70161268855",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "685d9d1e5c47e024413981fb7eddab86132b04a1",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "56fe8e5f313a64e458bb6f8b982de925345e21a7",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "8e76ab81319858736ccf23141e9415f9a1869337",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "70b9482926ca92862460e659f5e5fde99ae0b4fa",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "0fc740c25c9abb25113398ebb58e2f2ce57741a7",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "470edb012b1d9a4fba1cd59e329e60f0798c791a",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            },
            {
              "lessThan": "579c049b4cb6fc72ce2c505fc5334540be0efcd3",
              "status": "affected",
              "version": "97d642e23037c5545266f9564c9b81e6db81b122",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/light/gp2ap002.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes\n\nThe IIO core does not filter duplicate writes to the event enable\nattribute, so writing the same value twice invokes\nwrite_event_config() twice. Enabling twice leaks a runtime PM\nreference, preventing the device from ever suspending again;\ndisabling twice underflows the usage count and triggers a\n\"Runtime PM usage count underflow\" warning.\n\nBail out early when the requested state matches the current state.\nWhile at it, switch to pm_runtime_resume_and_get() so a failed\nresume is propagated to userspace instead of silently marking the\nevent enabled."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:07:50.766Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b2d7a97d75b648a643f60d77f4d6d70161268855"
        },
        {
          "url": "https://git.kernel.org/stable/c/685d9d1e5c47e024413981fb7eddab86132b04a1"
        },
        {
          "url": "https://git.kernel.org/stable/c/56fe8e5f313a64e458bb6f8b982de925345e21a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e76ab81319858736ccf23141e9415f9a1869337"
        },
        {
          "url": "https://git.kernel.org/stable/c/70b9482926ca92862460e659f5e5fde99ae0b4fa"
        },
        {
          "url": "https://git.kernel.org/stable/c/0fc740c25c9abb25113398ebb58e2f2ce57741a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/470edb012b1d9a4fba1cd59e329e60f0798c791a"
        },
        {
          "url": "https://git.kernel.org/stable/c/579c049b4cb6fc72ce2c505fc5334540be0efcd3"
        }
      ],
      "title": "iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90249",
    "datePublished": "2026-09-17T16:07:50.766Z",
    "dateReserved": "2026-09-11T19:38:34.795Z",
    "dateUpdated": "2026-09-17T16:07:50.766Z",
    "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.
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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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2026-90249

CVE-2026-90249 (GCVE-0-2026-90249)

Tags

Sightings

Nomenclature

Related by attack behaviour