GHSA-F555-JXRW-HV6G

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33
VLAI
Details

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

net: usb: catc: enable basic endpoint checking

catc_probe() fills three URBs with hardcoded endpoint pipes without verifying the endpoint descriptors:

  • usb_sndbulkpipe(usbdev, 1) and usb_rcvbulkpipe(usbdev, 1) for TX/RX
  • usb_rcvintpipe(usbdev, 2) for interrupt status

A malformed USB device can present these endpoints with transfer types that differ from what the driver assumes.

Add a catc_usb_ep enum for endpoint numbers, replacing magic constants throughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints() calls after usb_set_interface() to verify endpoint types before use, rejecting devices with mismatched descriptors at probe time.

Similar to - commit 90b7f2961798 ("net: usb: rtl8150: enable basic endpoint checking") which fixed the issue in rtl8150.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45923"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: catc: enable basic endpoint checking\n\ncatc_probe() fills three URBs with hardcoded endpoint pipes without\nverifying the endpoint descriptors:\n\n  - usb_sndbulkpipe(usbdev, 1) and usb_rcvbulkpipe(usbdev, 1) for TX/RX\n  - usb_rcvintpipe(usbdev, 2) for interrupt status\n\nA malformed USB device can present these endpoints with transfer types\nthat differ from what the driver assumes.\n\nAdd a catc_usb_ep enum for endpoint numbers, replacing magic constants\nthroughout. Add usb_check_bulk_endpoints() and usb_check_int_endpoints()\ncalls after usb_set_interface() to verify endpoint types before use,\nrejecting devices with mismatched descriptors at probe time.\n\nSimilar to\n- commit 90b7f2961798 (\"net: usb: rtl8150: enable basic endpoint checking\")\nwhich fixed the issue in rtl8150.",
  "id": "GHSA-f555-jxrw-hv6g",
  "modified": "2026-05-27T15:33:16Z",
  "published": "2026-05-27T15:33:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45923"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/163d04897e57633c5d2e69734e4e4b22bb63f50d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a42cfced8900d33d032c7ec338484855b61b8cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36c28b028efba0f42218d41fed12c47ce217c1f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e7021d2aeae57c323a6f722ed7915686cdcc123"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a488001a8197da4f9c413eec8f6acbff71c60145"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac7739b78ded519e1d9919a814da3b34120bec8c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eade522d3e6ac3f3bfb51bfa5b5b4b32bd0b846f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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