CVE-2023-52589

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: rkisp1: Fix IRQ disable race issue<br /> <br /> In rkisp1_isp_stop() and rkisp1_csi_disable() the driver masks the<br /> interrupts and then apparently assumes that the interrupt handler won&amp;#39;t<br /> be running, and proceeds in the stop procedure. This is not the case, as<br /> the interrupt handler can already be running, which would lead to the<br /> ISP being disabled while the interrupt handler handling a captured<br /> frame.<br /> <br /> This brings up two issues: 1) the ISP could be powered off while the<br /> interrupt handler is still running and accessing registers, leading to<br /> board lockup, and 2) the interrupt handler code and the code that<br /> disables the streaming might do things that conflict.<br /> <br /> It is not clear to me if 2) causes a real issue, but 1) can be seen with<br /> a suitable delay (or printk in my case) in the interrupt handler,<br /> leading to board lockup.