In the Linux kernel, the following vulnerability has been resolved:
net: fec: don't save PTP state if PTP is unsupported
Some platforms (such as i.MX25 and i.MX27) do not support PTP, so on these platforms fecptpinit() is not called and the related members in fep are not initialized. However, fecptpsavestate() is called unconditionally, which causes the kernel to panic. Therefore, add a condition so that fecptpsavestate() is not called if PTP is not supported.