Vulnerability-Lookup

GHSA-93XR-82QR-68RH

Vulnerability from github – Published: 2026-08-10 12:31 – Updated: 2026-08-10 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

iio: core: fix uninitialized data in debugfs

If ppos is non-zero then simple_write_to_buffer() will not initialize the start of buf[]. Non zero values for ppos aren't going to work anyway. Test for them at the start of the function and return -EINVAL.

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  "affected": [],
  "aliases": [
    "CVE-2026-68089"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T12:17:21Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix uninitialized data in debugfs\n\nIf *ppos is non-zero then simple_write_to_buffer() will not initialize\nthe start of buf[].  Non zero values for *ppos aren\u0027t going to work\nanyway.  Test for them at the start of the function and return -EINVAL.",
  "id": "GHSA-93xr-82qr-68rh",
  "modified": "2026-08-10T12:31:55Z",
  "published": "2026-08-10T12:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68089"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89fbd3e32dffb6227f936a9578e6eb4632aa4580"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab92ed206d41fd171ebd37bc46360d9f2140d043"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e166a8cfb28a3d0da260dd70cae274eb8c7cec8d"
    }
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  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68089 (GCVE-0-2026-68089)

Vulnerability from cvelistv5 – Published: 2026-08-10 11:51 – Updated: 2026-08-17 04:58

Title

iio: core: fix uninitialized data in debugfs

Summary

In the Linux kernel, the following vulnerability has been resolved: iio: core: fix uninitialized data in debugfs If *ppos is non-zero then simple_write_to_buffer() will not initialize the start of buf[]. Non zero values for *ppos aren't going to work anyway. Test for them at the start of the function and return -EINVAL.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/e166a8cfb28a3d0da…
https://git.kernel.org/stable/c/89fbd3e32dffb6227…
https://git.kernel.org/stable/c/ab92ed206d41fd171…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6d5dd486c715908b5a6ed02315a15ff044a91025 , < e166a8cfb28a3d0da260dd70cae274eb8c7cec8d (git) Affected: 6d5dd486c715908b5a6ed02315a15ff044a91025 , < 89fbd3e32dffb6227f936a9578e6eb4632aa4580 (git) Affected: 6d5dd486c715908b5a6ed02315a15ff044a91025 , < ab92ed206d41fd171ebd37bc46360d9f2140d043 (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/iio/industrialio-core.c"
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          "vendor": "Linux",
          "versions": [
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          ]
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          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
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              "version": "0",
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            },
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              "version": "6.18.39",
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            },
            {
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              "version": "7.1.4",
              "versionType": "semver"
            },
            {
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            }
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        }
      ],
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix uninitialized data in debugfs\n\nIf *ppos is non-zero then simple_write_to_buffer() will not initialize\nthe start of buf[].  Non zero values for *ppos aren\u0027t going to work\nanyway.  Test for them at the start of the function and return -EINVAL."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-08-17T04:58:37.083Z",
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    "datePublished": "2026-08-10T11:51:43.963Z",
    "dateReserved": "2026-07-30T09:28:09.367Z",
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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.

Action not permitted

GHSA-93XR-82QR-68RH

CVE-2026-68089 (GCVE-0-2026-68089)

Tags

Sightings

Nomenclature