Threats tagged 'ghsa-h4xg-972w-f7c3'

A NULL pointer dereference vulnerability was found and fixed in the Linux kernel's macb network driver. The issue occurs when the device tree describes a fixed-link without an "mdio" child node, causing macb_mii_init() to return early without allocating the MDIO bus. Subsequent cleanup code unconditionally dereferences this NULL pointer, leading to a kernel oops on driver unbind or probe error paths.