CVE-2022-50374

EPSS 0.19%
Veröffentlicht 17.09.2025 14:56:28
Zuletzt bearbeitet 14.01.2026 19:16:10
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Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure

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

Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure

syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],
for rcu_sync_enter() is called without rcu_sync_init() due to
hci_uart_tty_open() ignoring percpu_init_rwsem() failure.

While we are at it, fix that hci_uart_register_device() ignores
percpu_init_rwsem() failure and hci_uart_unregister_device() does not
call percpu_free_rwsem().

Betroffene Produkte Warnungen 0 Metriken 3 CWE 1 Referenzen 8

NVD 5 VulnDex Vulnerability Enrichment 9

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Linux ≫ Linux Kernel Version >= 4.14.63 < 4.15

Linux ≫ Linux Kernel Version >= 4.14.63 < 5.10.150

Linux ≫ Linux Kernel Version >= 5.11 < 5.15.75

Linux ≫ Linux Kernel Version >= 5.16 < 5.19.17

Linux ≫ Linux Kernel Version >= 6.0 < 6.0.3

VulnDex Vulnerability Enrichment

Diese Information steht angemeldeten Benutzern zur Verfügung.

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.19%	0.088

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
nvd@nist.gov	5.5	1.8	3.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0	5.5	1.8	3.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H