{
  "cveId": "CVE-2024-26748",
  "url": "https://patchblox.com/security/cve/CVE-2024-26748",
  "summary": "CVE-2024-26748 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-26748, released April 3, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  usb: cdns3: fix memory double free when handle z...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  usb: cdns3: fix memory double free when handle zero packet  829  if (request-\u003Ecomplete) { 830          spin_unlock(\u0026priv_dev-\u003Elock); 831          usb_gadget_giveback_request(\u0026priv_ep-\u003Eendpoint, 832                                    request); 833          spin_lock(\u0026priv_dev-\u003Elock); 834  } 835 836  if (request-\u003Ebuf == priv_dev-\u003Ezlp_buf) 837      cdns3_gadget_ep_free_request(\u0026priv_ep-\u003Eendpoint, request);  Driver append an additional zero packet request when queue a packet, which length mod max packet size is 0. When transfer complete, run to line 831, usb_gadget_giveback_request() will free this requestion. 836 condition is true, so cdns3_gadget_ep_free_request() free this request again.  Log:  [ 1920.140696][  T150] BUG: KFENCE: use-after-free read in cdns3_gadget_giveback\u002B0x134/0x2c0 [cdns3] [ 1920.140696][  T150] [ 1920.151837][  T150] Use-after-free read at 0x000000003d1cd10b (in kfence-#36): [ 1920.159082][  T150]  cdns3_gadget_giveback\u002B0x134/0x2c0 [cdns3] [ 1920.164988][  T150]  cdns3_transfer_completed\u002B0x438/0x5f8 [cdns3]  Add check at line 829, skip call usb_gadget_giveback_request() if it is additional zero length packet request. Needn\u0027t call usb_gadget_giveback_request() because it is allocated in this driver.",
  "published": "2024-04-03T17:15:51Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00244,
  "epssPercentile": 0.15728,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.82-1",
      "fix": "DEBIAN-CVE-2024-26748",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26748",
      "released": "2024-04-03T17:15:51Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.7.7-1",
      "fix": "DEBIAN-CVE-2024-26748",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26748",
      "released": "2024-04-03T17:15:51Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.7.7-1",
      "fix": "DEBIAN-CVE-2024-26748",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26748",
      "released": "2024-04-03T17:15:51Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}