Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tty: Clearing the cdev pointer after a cdevadd failure The ttycdevadd function releases the cdev reference when cdevadd fails. However, it leaves driver-cdevsindex pointing to freed memory. Later, ttyunregisterdevice passes this...

CVE-2026-90334

In the Linux kernel, the following vulnerability has been resolved: tty: clear cdev pointer after cdevadd failure ttycdevadd drops the cdev reference when cdevadd fails, but leaves driver-cdevsindex pointing to freed memory. ttyunregisterdevice later passes that stale pointer to cdevdel, causing ...

CVE-2026-90334 tty: clear cdev pointer after cdev_add() failure

In the Linux kernel, the following vulnerability has been resolved: tty: clear cdev pointer after cdevadd failure ttycdevadd drops the cdev reference when cdevadd fails, but leaves driver-cdevsindex pointing to freed memory. ttyunregisterdevice later passes that stale pointer to cdevdel, causing ...

CVE-2026-90334

CVE-2026-90334 is a use-after-free vulnerability in the Linux kernel TTY subsystem. In tty_cdev_add() , when cdev_add() fails, the function drops the cdev reference but leaves driver->cdevs[index] pointing to freed memory. Later, tty_unregister_device() passes that stale pointer to cdev_del() ...

CVE-2026-90334: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tty: clear cdev pointer after cdevadd failure ttycdevadd drops the cdev reference when cdevadd fails, but leaves driver-cdevsindex pointing to freed memory. ttyunregisterdevice later passes that stale pointer to cdevdel, causing ...