GHSA-69M6-GCW2-M2RP

Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-08 21:31
VLAI?
Details

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

media: pvrusb2: fix URB leak in pvr2_send_request_ex

When pvr2_send_request_ex() submits a write URB successfully but fails to submit the read URB (e.g. returns -ENOMEM), it returns immediately without waiting for the write URB to complete. Since the driver reuses the same URB structure, a subsequent call to pvr2_send_request_ex() attempts to submit the still-active write URB, triggering a 'URB submitted while active' warning in usb_submit_urb().

Fix this by ensuring the write URB is unlinked and waited upon if the read URB submission fails.

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-2026-43223"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T12:16:42Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pvrusb2: fix URB leak in pvr2_send_request_ex\n\nWhen pvr2_send_request_ex() submits a write URB successfully but fails to\nsubmit the read URB (e.g. returns -ENOMEM), it returns immediately without\nwaiting for the write URB to complete. Since the driver reuses the same\nURB structure, a subsequent call to pvr2_send_request_ex() attempts to\nsubmit the still-active write URB, triggering a \u0027URB submitted while\nactive\u0027 warning in usb_submit_urb().\n\nFix this by ensuring the write URB is unlinked and waited upon if the read\nURB submission fails.",
  "id": "GHSA-69m6-gcw2-m2rp",
  "modified": "2026-05-08T21:31:20Z",
  "published": "2026-05-06T12:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43223"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2011929f0e4cf6a0a34dd6205911b12276904453"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ba5c7a1aade7090172cbffd4d120bf4cf5ccbde"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58dd722b6c3debcddb4684fb256c90fee7f063e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f3ac816861c3b8a5d1a3645b17dc3a99d668d94"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77a63f8efc434ddb04667ed632aade58301a2f13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8333c8262aed2aedf608c18edd39cf5342680a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf459d6ffa5e150ef3744b897f936ff24b52bd15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da524c939b1e5ba17f10db4bde4bdaf569ffcda6"
    }
  ],
  "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"
    }
  ]
}


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