fkie_cve-2022-50447
Vulnerability from fkie_nvd
Published
2025-10-01 12:15
Modified
2025-10-02 19:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix crash on hci_create_cis_sync When attempting to connect multiple ISO sockets without using DEFER_SETUP may result in the following crash: BUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0 Read of size 2 at addr 0000000000000036 by task kworker/u3:1/50 CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted 6.0.0-rc7-02243-gb84a13ff4eda #4373 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-1.fc36 04/01/2014 Workqueue: hci0 hci_cmd_sync_work Call Trace: <TASK> dump_stack_lvl+0x19/0x27 kasan_report+0xbc/0xf0 ? hci_create_cis_sync+0x18b/0x2b0 hci_create_cis_sync+0x18b/0x2b0 ? get_link_mode+0xd0/0xd0 ? __ww_mutex_lock_slowpath+0x10/0x10 ? mutex_lock+0xe0/0xe0 ? get_link_mode+0xd0/0xd0 hci_cmd_sync_work+0x111/0x190 process_one_work+0x427/0x650 worker_thread+0x87/0x750 ? process_one_work+0x650/0x650 kthread+0x14e/0x180 ? kthread_exit+0x50/0x50 ret_from_fork+0x22/0x30 </TASK>
Impacted products
Vendor Product Version



{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix crash on hci_create_cis_sync\n\nWhen attempting to connect multiple ISO sockets without using\nDEFER_SETUP may result in the following crash:\n\nBUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0\nRead of size 2 at addr 0000000000000036 by task kworker/u3:1/50\n\nCPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted\n6.0.0-rc7-02243-gb84a13ff4eda #4373\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009),\nBIOS 1.16.0-1.fc36 04/01/2014\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x19/0x27\n kasan_report+0xbc/0xf0\n ? hci_create_cis_sync+0x18b/0x2b0\n hci_create_cis_sync+0x18b/0x2b0\n ? get_link_mode+0xd0/0xd0\n ? __ww_mutex_lock_slowpath+0x10/0x10\n ? mutex_lock+0xe0/0xe0\n ? get_link_mode+0xd0/0xd0\n hci_cmd_sync_work+0x111/0x190\n process_one_work+0x427/0x650\n worker_thread+0x87/0x750\n ? process_one_work+0x650/0x650\n kthread+0x14e/0x180\n ? kthread_exit+0x50/0x50\n ret_from_fork+0x22/0x30\n \u003c/TASK\u003e"
    }
  ],
  "id": "CVE-2022-50447",
  "lastModified": "2025-10-02T19:12:17.160",
  "metrics": {},
  "published": "2025-10-01T12:15:37.177",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/09a3b0c9c7c6b10587fbb610b718014703cff341"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/50757a259ba78c4e938b5735e76ffec6cd0c942e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a190cd9dc62d6ebeb679c1abe9dda4162dfefc84"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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