In the Linux kernel, the following vulnerability has been resolved: backlight: hx8357: Fix potential NULL pointer dereference The "im" pins are optional. Add missing check in the hx8357_probe().
https://git.kernel.org/stable/c/b1ba8bcb2d1ffce11b308ce166c9cc28d989e3b9
https://git.kernel.org/stable/c/67e578c8ff2d7df03bf8ca9a7f5436b1796f6ad1