# CVE-2022-50419: linux: In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: hci_sysfs: Fix attempting to call dev...

CVE-2022-50419 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50419, released September 18, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-50419
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 18, 2025

## Description

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:  <TASK>  __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  </TASK>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.3-1 | [DEBIAN-CVE-2022-50419](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50419.md) | Sep 18, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.3-1 | [DEBIAN-CVE-2022-50419](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50419.md) | Sep 18, 2025 |
| Linux | linux Debian 14 | 6.0.3-1 | [DEBIAN-CVE-2022-50419](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50419.md) | Sep 18, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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