CVE-2025-22105: 
Linux Kernel vulnerability analysis and mitigation

A vulnerability in the Linux kernel's bonding driver was discovered and resolved, identified as CVE-2025-22105. The issue involves improper handling of XDP (eXpress Data Path) programs when changing bond modes. The vulnerability was disclosed on April 16, 2025, affecting Linux kernel's networking subsystem, specifically the bonding interface functionality (NVD).

The vulnerability occurs when an XDP program is attached to a bond interface and the bond mode is subsequently changed. When deleting a namespace, devxdpuninstall() is called to remove the XDP program on the bond device, and bondxdpset() checks the bond mode. If the bond mode is changed after attaching the XDP program, a warning may occur because some bond modes (like broadcast) do not support native XDP. According to Red Hat's assessment, this vulnerability has been assigned a CVSS v3.1 Base Score of 5.5 with attack vector being Local (Red Hat).

The vulnerability can trigger kernel warnings and potentially lead to system instability when specific bond mode operations are performed with XDP programs attached. The issue primarily affects systems using bond interfaces with XDP programs in specific configurations (Debian).

The issue has been resolved by adding a check for XDP programs when setting bond mode. The fix prevents setting incompatible bond modes when an XDP program is attached. For affected systems, updating to the patched kernel version is recommended (Red Hat).