CVE-2024-39292

In the Linux kernel, the following vulnerability has been resolved: um: Add winch to winch_handlers before registering winch IRQ Registering a winch IRQ is racy, an interrupt may occur before the winch is added to the winch_handlers list. If that happens, register_winch_irq() adds to that list a winch that is scheduled to be (or has already been) freed, causing a panic later in winch_cleanup(). Avoid the race by adding the winch to the winch_handlers list before registering the IRQ, and rolling back if um_request_irq() fails.

• linux linux kernel (< 2.6.23) • linux linux kernel (>= 4.19 < 4.19.316) • linux linux kernel (>= 5.4 < 5.4.278) • linux linux kernel (>= 5.10 < 5.10.219) • linux linux kernel (>= 5.15 < 5.15.161) • linux linux kernel (>= 6.1 < 6.1.93) • linux linux kernel (>= 6.6 < 6.6.33) • linux linux kernel (>= 6.9 < 6.9.4) • linux linux kernel 6.10.0