{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-57913",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-57913"
  ],
  "published": "2025-01-19T11:53:48Z",
  "summary": "usb: gadget: f_fs: Remove WARN_ON in functionfs_bind",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_fs: Remove WARN_ON in functionfs_bind\n\nThis commit addresses an issue related to below kernel panic where\npanic_on_warn is enabled. It is caused by the unnecessary use of WARN_ON\nin functionsfs_bind, which easily leads to the following scenarios.\n\n1.adb_write in adbd               2. UDC write via configfs\n  =================\t             =====================\n\n->usb_ffs_open_thread()           ->UDC write\n ->open_functionfs()               ->configfs_write_iter()\n  ->adb_open()                      ->gadget_dev_desc_UDC_store()\n   ->adb_write()                     ->usb_gadget_register_driver_owner\n                                      ->driver_register()\n->StartMonitor()                       ->bus_add_driver()\n ->adb_read()                           ->gadget_bind_driver()\n<times-out without BIND event>           ->configfs_composite_bind()\n                                          ->usb_add_function()\n->open_functionfs()                        ->ffs_func_bind()\n ->adb_open()                               ->functionfs_bind()\n                                       <ffs->state !=FFS_ACTIVE>\n\nThe adb_open, adb_read, and adb_write operations are invoked from the\ndaemon, but trying to bind the function is a process that is invoked by\nUDC write through configfs, which opens up the possibility of a race\ncondition between the two paths. In this race scenario, the kernel panic\noccurs due to the WARN_ON from functionfs_bind when panic_on_warn is\nenabled. This commit fixes the kernel panic by removing the unnecessary\nWARN_ON.\n\nKernel panic - not syncing: kernel: panic_on_warn set ...\n[   14.542395] Call trace:\n[   14.542464]  ffs_func_bind+0x1c8/0x14a8\n[   14.542468]  usb_add_function+0xcc/0x1f0\n[   14.542473]  configfs_composite_bind+0x468/0x588\n[   14.542478]  gadget_bind_driver+0x108/0x27c\n[   14.542483]  really_probe+0x190/0x374\n[   14.542488]  __driver_probe_device+0xa0/0x12c\n[   14.542492]  driver_probe_device+0x3c/0x220\n[   14.542498]  __driver_attach+0x11c/0x1fc\n[   14.542502]  bus_for_each_dev+0x104/0x160\n[   14.542506]  driver_attach+0x24/0x34\n[   14.542510]  bus_add_driver+0x154/0x270\n[   14.542514]  driver_register+0x68/0x104\n[   14.542518]  usb_gadget_register_driver_owner+0x48/0xf4\n[   14.542523]  gadget_dev_desc_UDC_store+0xf8/0x144\n[   14.542526]  configfs_write_iter+0xf0/0x138",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-57913"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bfe60030fcd976e3546e1f73d6d0eb3fea26442e"
    },
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    },
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      "url": "https://git.kernel.org/stable/c/19fc1c83454ca9d5699e39633ec79ce26355251c"
    },
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      "url": "https://git.kernel.org/stable/c/82f60f3600aecd9ffcd0fbc4e193694511c85b47"
    },
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      "url": "https://git.kernel.org/stable/c/ea6a1498742430eb2effce0d1439ff29ef37dd7d"
    },
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      "url": "https://git.kernel.org/stable/c/a8b6a18b9b66cc4c016d63132b59ce5383f7cdd2"
    },
    {
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      "url": "https://git.kernel.org/stable/c/dfc51e48bca475bbee984e90f33fdc537ce09699"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
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}