Vulnerability-Lookup

GHSA-78J7-XMW6-68GR

Vulnerability from github – Published: 2024-04-03 15:30 – Updated: 2025-01-07 21:30

Details

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

usb: core: Prevent null pointer dereference in update_port_device_state

Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference.

Fix this by introducing an if check after the usb_hub is populated.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26716"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-03T15:15:53Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: core: Prevent null pointer dereference in update_port_device_state\n\nCurrently, the function update_port_device_state gets the usb_hub from\nudev-\u003eparent by calling usb_hub_to_struct_hub.\nHowever, in case the actconfig or the maxchild is 0, the usb_hub would\nbe NULL and upon further accessing to get port_dev would result in null\npointer dereference.\n\nFix this by introducing an if check after the usb_hub is populated.",
  "id": "GHSA-78j7-xmw6-68gr",
  "modified": "2025-01-07T21:30:54Z",
  "published": "2024-04-03T15:30:43Z",
  "references": [
    {
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26716"
    },
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      "url": "https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f"
    },
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  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-26716 (GCVE-0-2024-26716)

Vulnerability from cvelistv5 – Published: 2024-04-03 14:55 – Updated: 2026-05-11 20:02

Title

usb: core: Prevent null pointer dereference in update_port_device_state

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference. Fix this by introducing an if check after the usb_hub is populated.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-17 19:29 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/ed85777c640cf9e69…
https://git.kernel.org/stable/c/465b545d1d7ef2821…
https://git.kernel.org/stable/c/12783c0b9e2c7915a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 83cb2604f641cecadc275ca18adbba4bf262320f , < ed85777c640cf9e6920bb1b60ed8cd48e1f4d873 (git) Affected: 83cb2604f641cecadc275ca18adbba4bf262320f , < 465b545d1d7ef282192ddd4439b08279bdb13f6f (git) Affected: 83cb2604f641cecadc275ca18adbba4bf262320f , < 12783c0b9e2c7915a50d5ec829630ff2da50472c (git)
Linux	Linux	Affected: 6.5 Unaffected: 0 , < 6.5 (semver) Unaffected: 6.6.18 , ≤ 6.6.* (semver) Unaffected: 6.7.6 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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

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