ghsa-4pjv-phcw-v7cc
Vulnerability from github
Published
2025-09-18 18:30
Modified
2025-09-18 18:30
Details

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

Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times

device_add shall not be called multiple times as stated in its documentation:

'Do not call this routine or device_register() more than once for any device structure'

Syzkaller reports a bug as follows [1]: ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:33! invalid opcode: 0000 [#1] PREEMPT SMP KASAN [...] Call Trace: __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] kobj_kset_join lib/kobject.c:164 [inline] kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 device_add+0x368/0x1e90 drivers/base/core.c:3452 hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53 hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799 hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110 hci_event_func net/bluetooth/hci_event.c:7440 [inline] hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495 hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50419"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T16:15:45Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sysfs: Fix attempting to call device_add multiple times\n\ndevice_add shall not be called multiple times as stated in its\ndocumentation:\n\n \u0027Do not call this routine or device_register() more than once for\n any device structure\u0027\n\nSyzkaller reports a bug as follows [1]:\n------------[ cut here ]------------\nkernel BUG at lib/list_debug.c:33!\ninvalid opcode: 0000 [#1] PREEMPT SMP KASAN\n[...]\nCall Trace:\n \u003cTASK\u003e\n __list_add include/linux/list.h:69 [inline]\n list_add_tail include/linux/list.h:102 [inline]\n kobj_kset_join lib/kobject.c:164 [inline]\n kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214\n kobject_add_varg lib/kobject.c:358 [inline]\n kobject_add+0x150/0x1c0 lib/kobject.c:410\n device_add+0x368/0x1e90 drivers/base/core.c:3452\n hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53\n hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799\n hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110\n hci_event_func net/bluetooth/hci_event.c:7440 [inline]\n hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495\n hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007\n process_one_work+0x991/0x1610 kernel/workqueue.c:2289\n worker_thread+0x665/0x1080 kernel/workqueue.c:2436\n kthread+0x2e4/0x3a0 kernel/kthread.c:376\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306\n \u003c/TASK\u003e",
  "id": "GHSA-4pjv-phcw-v7cc",
  "modified": "2025-09-18T18:30:27Z",
  "published": "2025-09-18T18:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50419"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b6c89571f453101251201f0fad1c26f7256e937"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3423a50fa018e88aed4c900d59c3c8334d8ad583"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/448a496f760664d3e2e79466aa1787e6abc922b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4bcefec3636208b4c97536b26014d5935d5c10a0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6144423712d570247b8ca26e50a277c30dd13702"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/671fee73e08ff415d36a7c16bdf238927df83884"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e85d2ad958c6f034b1b158d904019869dbb3c81"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b674dce4162bb46d396586e30e4653427023875"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef055094df4c10b73cfe67c8d43f9de1fb608a8b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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