CVE-2022-50374

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().

The following products are affected by CVE-2022-50374 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-50374.

URL	Resource
https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1
https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2
https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac
https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569
https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d
https://lore.kernel.org/linux-cve-announce/2025091717-CVE-2022-50374-6da4@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-50374
https://www.cve.org/CVERecord?id=CVE-2022-50374