usb: cdns3: fix memory double free when handle zero packet

{
  "id": "999d134ef059a44f1b457078e7a700245fd08cdefdf3093a8525022ff18a81d7",
  "url": "https://osv.dev/vulnerability/CVE-2024-26748",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "usb: cdns3: fix memory double free when handle zero packet",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fix memory double free when handle zero packet 829 if (request->complete) { 830 spin_unlock(&priv_dev->lock); 831 usb_gadget_giveback_request(&priv_ep->endpoint, 832 request); 833 spin_lock(&priv_dev->lock); 834 } 835 836 if (request->buf == priv_dev->zlp_buf) 837 cdns3_gadget_ep_free_request(&priv_ep->endpoint, 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+0x134/0x2c0 [cdns3] [ 1920.140696][ T150] [ 1920.151837][ T150] Use-after-free read at 0x000000003d1cd10b (in kfence-#36): [ 1920.159082][ T150] cdns3_gadget_giveback+0x134/0x2c0 [cdns3] [ 1920.164988][ T150] cdns3_transfer_completed+0x438/0x5f8 [cdns3] Add check at line 829, skip call usb_gadget_giveback_request() if it is additional zero length packet request. Needn't call usb_gadget_giveback_request() because it is allocated in this driver.",
    "evidence": "osv:CVE-2024-26748",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.270",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.211",
            "evidence": "/affected/1/ranges"
          },
          {
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            "evidence": "/affected/1/ranges"
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          {
            "value": "6.1.80",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.6.19",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.7.7",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-26748",
      "aliases": [
        "CVE-2024-26748"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "type": "GIT",
              "events": [
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                  "fixed": "1e204a8e9eb514e22a6567fb340ebb47df3f3a48"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26748.json"
          }
        },
        {
          "ranges": [
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              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.4.0"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26748.json"
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        }
      ],
      "modified": "2026-10-28T02:30:35.860227414Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1e204a8e9eb514e22a6567fb340ebb47df3f3a48",
        "https://git.kernel.org/stable/c/3a2a909942b5335b7ea66366d84261b3ed5f89c8",
        "https://git.kernel.org/stable/c/5fd9e45f1ebcd57181358af28506e8a661a260b3",
        "https://git.kernel.org/stable/c/70e8038813f9d3e72df966748ebbc40efe466019",
        "https://git.kernel.org/stable/c/92d20406a3d4ff3e8be667c79209dc9ed31df5b3",
        "https://git.kernel.org/stable/c/9a52b694b066f299d8b9800854a8503457a8b64c",
        "https://git.kernel.org/stable/c/aad6132ae6e4809e375431f8defd1521985e44e7",
        "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26748.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26748",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26748.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-26748",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503150,
  "published_at": "2024-04-03T17:00:35.087+00:00"
}