CVE-2022-50419— Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
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I. Basic Information for CVE-2022-50419
Vulnerability Information
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Vulnerability Title
Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
Source: NVD (National Vulnerability Database)
Vulnerability 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>
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于多次调用device_add函数，可能导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-50419
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Same Patch Batch · Linux · 2025-09-18 · 121 CVEs total
| CVE-2022-50402 | drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() | |
| CVE-2022-50417 | drm/panfrost: Fix GEM handle creation ref-counting | |
| CVE-2022-50416 | irqchip/wpcm450: Fix memory leak in wpcm450_aic_of_init() | |
| CVE-2022-50415 | parisc: led: Fix potential null-ptr-deref in start_task() | |
| CVE-2022-50414 | scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails | |
| CVE-2022-50413 | wifi: mac80211: fix use-after-free | |
| CVE-2022-50412 | drm: bridge: adv7511: unregister cec i2c device after cec adapter | |
| CVE-2022-50411 | ACPICA: Fix error code path in acpi_ds_call_control_method() | |
| CVE-2022-50410 | NFSD: Protect against send buffer overflow in NFSv2 READ | |
| CVE-2022-50409 | net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory | |
| CVE-2022-50407 | crypto: hisilicon/qm - increase the memory of local variables | |
| CVE-2022-50408 | wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() | |
| CVE-2022-50406 | iomap: iomap: fix memory corruption when recording errors during writeback | |
| CVE-2022-50404 | fbdev: fbcon: release buffer when fbcon_do_set_font() failed | |
| CVE-2022-50405 | net/tunnel: wait until all sk_user_data reader finish before releasing the sock | |
| CVE-2023-53409 | drivers: base: component: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53412 | USB: gadget: bcm63xx_udc: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53411 | PM: EM: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53410 | USB: ULPI: fix memory leak with using debugfs_lookup() | |
| CVE-2023-53407 | USB: gadget: pxa27x_udc: fix memory leak with using debugfs_lookup() |
Showing top 20 of 121 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
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