Description

In the Linux kernel, the following vulnerability has been resolved: phy: freescale: imx8qm-hsio: fix NULL pointer dereference During the probe the refclk_pad pointer is set to NULL if the 'fsl,refclk-pad-mode' property is not defined in the devicetree node. But in imx_hsio_configure_clk_pad() this pointer is unconditionally used which could result in a NULL pointer dereference. So check the pointer before to use it.

References 4

• git.kernel.org https://git.kernel.org/stable/c/4dd5d4c0361af0a3fd24f45c815996abf4429770
• git.kernel.org https://git.kernel.org/stable/c/8d29e81e9cdec84d4b9acb1736550d35e86c88af
• git.kernel.org https://git.kernel.org/stable/c/a771b386cb6c6e582e7b50f8eeff3347ff887f71
• git.kernel.org https://git.kernel.org/stable/c/dd8b9ba3d9701832cfb5dcefd8b43250df28dbc2

Remediation