CVE-2024-56680

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: intel/ipu6: do not handle interrupts when device is disabled<br /> <br /> Some IPU6 devices have shared interrupts. We need to handle properly<br /> case when interrupt is triggered from other device on shared irq line<br /> and IPU6 itself disabled. In such case we get 0xffffffff from<br /> ISR_STATUS register and handle all irq&amp;#39;s cases, for what we are not<br /> not prepared and usually hang the whole system.<br /> <br /> To avoid the issue use pm_runtime_get_if_active() to check if<br /> the device is enabled and prevent suspending it when we handle irq<br /> until the end of irq. Additionally use synchronize_irq() in suspend