Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: In hcildisc,serdev, a failure in checking percpuinitrwsem. syzbot reports a NULL pointer dereferencing at hciuartttyclose. For rcusyncenter, rcusyncinit is called without calling hciuartttyopen, as hciuartttyopen...

DEBIAN-CVE-2022-50374

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcildisc,serdev: check percpuinitrwsem failure syzbot is reporting NULL pointer dereference at hciuartttyclose 1, for rcusyncenter is called without rcusyncinit due to hciuartttyopen ignoring percpuinitrwsem failure...

CVE-2022-50374 Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcildisc,serdev: check percpuinitrwsem failure syzbot is reporting NULL pointer dereference at hciuartttyclose 1, for rcusyncenter is called without rcusyncinit due to hciuartttyopen ignoring percpuinitrwsem failure...

CVE-2022-50374

CVE-2022-50374 affects the Linux kernel Bluetooth stack (hci_ldisc/hci_serdev). The issue is a missing handling of percpu_init_rwsem() failure, leading to a NULL pointer dereference in hci_uart_tty_close() because rcu_sync_enter() can be called without rcu_sync_init() after hci_uart_tty_open() ig...