CVE-2026-23206

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the dpaa2-switch driver where a zero-sized pointer dereference can occur when the number of interfaces (num ifs) reported by the device is zero. This happens because kcalloc() returns a zero-sized pointer (0x10) when the element count is zero, and subsequent code attempts to access memory at this invalid address, leading to a kernel panic. The issue arises from unconditionally accessing ethsw->ports[0]->netdev without verifying that num ifs is greater than zero after retrieving device attributes.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.