User-Mode Linux Register Winch IRQ DoS

The vulnerability of the registerwinchirq function in the arch/um/drivers/line.c file of the User-Mode Linux subsystem driver for the Linux operating system is related to the reallocation of previously freed memory due to concurrent access to resources. Exploiting this vulnerability could allow a...

CVE-2024-39292: Double Free

In the Linux kernel, the following vulnerability has been resolved: um: Add winch to winchhandlers before registering winch IRQ Registering a winch IRQ is racy, an interrupt may occur before the winch is added to the winchhandlers list. If that happens, registerwinchirq adds to that list a winch...