CVE-2022-50374 (GCVE-0-2022-50374)
Vulnerability from cvelistv5
Published
2025-09-17 14:56
Modified
2026-05-23 15:24
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2
Version: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2
Version: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2
Version: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2
Version: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2
Version: f6ec33f6bd3723a8146768106434ef6ab3d9d990
Version: 4a53c4e84ace1bc75157a7281af3fe8f5b19d08c
Version: 4.14.63   ≤
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