usb: gadget: f_fs: Remove WARN_ON in functionfs_bind

{
  "id": "04f27e642cd232ff0b53acffc4b8cc593a61b4e29cda2398b9961a82366a40dd",
  "url": "https://osv.dev/vulnerability/CVE-2024-57913",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "usb: gadget: f_fs: Remove WARN_ON in functionfs_bind",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_fs: Remove WARN_ON in functionfs_bind This commit addresses an issue related to below kernel panic where panic_on_warn is enabled. It is caused by the unnecessary use of WARN_ON in functionsfs_bind, which easily leads to the following scenarios. 1.adb_write in adbd 2. UDC write via configfs ================= ===================== ->usb_ffs_open_thread() ->UDC write ->open_functionfs() ->configfs_write_iter() ->adb_open() ->gadget_dev_desc_UDC_store() ->adb_write() ->usb_gadget_register_driver_owner ->driver_register() ->StartMonitor() ->bus_add_driver() ->adb_read() ->gadget_bind_driver() ->configfs_composite_bind() ->usb_add_function() ->open_functionfs() ->ffs_func_bind() ->adb_open() ->functionfs_bind() state !=FFS_ACTIVE> The adb_open, adb_read, and adb_write operations are invoked from the daemon, but trying to bind the function is a process that is invoked by UDC write through configfs, which opens up the possibility of a race condition between the two paths. In this race scenario, the kernel panic occurs due to the WARN_ON from functionfs_bind when panic_on_warn is enabled. This commit fixes the kernel panic by removing the unnecessary WARN_ON. Kernel panic - not syncing: kernel: panic_on_warn set ... [ 14.542395] Call trace: [ 14.542464] ffs_func_bind+0x1c8/0x14a8 [ 14.542468] usb_add_function+0xcc/0x1f0 [ 14.542473] configfs_composite_bind+0x468/0x588 [ 14.542478] gadget_bind_driver+0x",
    "evidence": "osv:CVE-2024-57913",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.290",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.234",
            "evidence": "/affected/1/ranges"
          },
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            "value": "5.15.177",
            "evidence": "/affected/1/ranges"
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            "evidence": "/affected/1/ranges"
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          {
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            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-57913",
      "aliases": [
        "CVE-2024-57913"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "3e4d32cc145955d5c56c5498a3ff057e4aafa9d1"
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                  "fixed": "19fc1c83454ca9d5699e39633ec79ce26355251c"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-57913.json"
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        {
          "ranges": [
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              "type": "ECOSYSTEM",
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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-2024-57913.json"
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      ],
      "modified": "2026-10-28T02:30:28.306125633Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
        "https://git.kernel.org/stable/c/19fc1c83454ca9d5699e39633ec79ce26355251c",
        "https://git.kernel.org/stable/c/3e4d32cc145955d5c56c5498a3ff057e4aafa9d1",
        "https://git.kernel.org/stable/c/82f60f3600aecd9ffcd0fbc4e193694511c85b47",
        "https://git.kernel.org/stable/c/a8b6a18b9b66cc4c016d63132b59ce5383f7cdd2",
        "https://git.kernel.org/stable/c/bfe60030fcd976e3546e1f73d6d0eb3fea26442e",
        "https://git.kernel.org/stable/c/dfc51e48bca475bbee984e90f33fdc537ce09699",
        "https://git.kernel.org/stable/c/ea6a1498742430eb2effce0d1439ff29ef37dd7d",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57913.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-57913",
        "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/2024/57xxx/CVE-2024-57913.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-57913",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494549,
  "published_at": "2025-01-19T11:52:35.149+00:00"
}