ghsa-78j7-xmw6-68gr
Vulnerability from github
Published
2024-04-03 15:30
Modified
2025-01-07 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

Show details on source website

To clipboard 

{
  "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": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26716"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.