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>
References
Configurations
Configuration 1 (hide)
|
History
12 Dec 2025, 19:40
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/1b6c89571f453101251201f0fad1c26f7256e937 - Patch | |
| References | () https://git.kernel.org/stable/c/3423a50fa018e88aed4c900d59c3c8334d8ad583 - Patch | |
| References | () https://git.kernel.org/stable/c/448a496f760664d3e2e79466aa1787e6abc922b5 - Patch | |
| References | () https://git.kernel.org/stable/c/4bcefec3636208b4c97536b26014d5935d5c10a0 - Patch | |
| References | () https://git.kernel.org/stable/c/6144423712d570247b8ca26e50a277c30dd13702 - Patch | |
| References | () https://git.kernel.org/stable/c/671fee73e08ff415d36a7c16bdf238927df83884 - Patch | |
| References | () https://git.kernel.org/stable/c/6e85d2ad958c6f034b1b158d904019869dbb3c81 - Patch | |
| References | () https://git.kernel.org/stable/c/7b674dce4162bb46d396586e30e4653427023875 - Patch | |
| References | () https://git.kernel.org/stable/c/ef055094df4c10b73cfe67c8d43f9de1fb608a8b - Patch | |
| First Time |
Linux
Linux linux Kernel |
|
| CWE | CWE-415 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
18 Sep 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-18 16:15
Updated : 2025-12-12 19:40
NVD link : CVE-2022-50419
Mitre link : CVE-2022-50419
CVE.ORG link : CVE-2022-50419
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-415
Double Free