Vulnerability-Lookup

GHSA-3J49-838F-HR4G

Vulnerability from github – Published: 2026-08-28 09:31 – Updated: 2026-08-28 09:31

Details

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

Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing

The driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc() by iterating through the extra descriptor data. However, it does not verify that the bLength of each descriptor is at least 2. A malicious device could provide a descriptor with bLength = 0, leading to an infinite loop in the driver.

Add a check to ensure bLength is at least 2 before proceeding with parsing.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-80594"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T08:16:43Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\n\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\n\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing.",
  "id": "GHSA-3j49-838f-hr4g",
  "modified": "2026-08-28T09:31:46Z",
  "published": "2026-08-28T09:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80594"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80594 (GCVE-0-2026-80594)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-28 06:48

Title

Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing

Summary

In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing The driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc() by iterating through the extra descriptor data. However, it does not verify that the bLength of each descriptor is at least 2. A malicious device could provide a descriptor with bLength = 0, leading to an infinite loop in the driver. Add a check to ensure bLength is at least 2 before proceeding with parsing.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/67a038c5a7c9bd8aa…
https://git.kernel.org/stable/c/6314bd9e2a6b33629…
https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c…
https://git.kernel.org/stable/c/e3f93d63dcd48c1f0…
https://git.kernel.org/stable/c/b847f2725ef47a26b…
https://git.kernel.org/stable/c/383934c249a9817d2…
https://git.kernel.org/stable/c/bbbe31486cf2d1217…
https://git.kernel.org/stable/c/d4579af29e67ca872…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 628329d52474323938a03826941e166bc7c8eff4 , < 67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28 (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < 6314bd9e2a6b3362998dc85485dd4b0f133a3532 (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < 76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32 (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295 (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < b847f2725ef47a26b3d01eca3d54fd811e5a544d (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < 383934c249a9817d242d02d30bfbc8defbf0d533 (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < bbbe31486cf2d12177462e4a814244c2597c9849 (git) Affected: 628329d52474323938a03826941e166bc7c8eff4 , < d4579af29e67ca8722db0a1194227f8015c8981d (git)
Linux	Linux	Affected: 3.10 Unaffected: 0 , < 3.10 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 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/input/misc/ims-pcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "6314bd9e2a6b3362998dc85485dd4b0f133a3532",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "b847f2725ef47a26b3d01eca3d54fd811e5a544d",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "383934c249a9817d242d02d30bfbc8defbf0d533",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "bbbe31486cf2d12177462e4a814244c2597c9849",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "d4579af29e67ca8722db0a1194227f8015c8981d",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/input/misc/ims-pcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "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": "5.10.261",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\n\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\n\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:21.426Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"
        },
        {
          "url": "https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532"
        },
        {
          "url": "https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"
        },
        {
          "url": "https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"
        },
        {
          "url": "https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d"
        },
        {
          "url": "https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d"
        }
      ],
      "title": "Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80594",
    "datePublished": "2026-08-28T06:48:21.426Z",
    "dateReserved": "2026-08-26T14:34:25.770Z",
    "dateUpdated": "2026-08-28T06:48:21.426Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.