CVE-2024-42248 tty: serial: ma35d1: Add a NULL check for of_node

In the Linux kernel, the following vulnerability has been resolved: tty: serial: ma35d1: Add a NULL check for ofnode The pdev-dev.ofnode can be NULL if the "serial" node is absent. Add a NULL check to return an error in such cases...

CVE-2024-42248

CVE-2024-42248 : In the Linux kernel, the tty/serial Ma35d1 driver had a NULL dereference risk when the serial node is absent because of a missing of_node check. The fix adds a NULL check for of_node and returns an error if pdev->dev.of_node is NULL. Affected component: Linux kernel tty serial...