CVE-2025-71095

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

Description A crash issue exists within the Linux kernel's networking subsystem, specifically in the stmmac driver when utilizing zero copy XDP TX actions. The issue stems from an incorrect memory type check within the stmmac xdp xmit back() function. This function fails to validate the memory type of the xdp frame, leading to invalid memory mappings and a subsequent kernel panic. The root cause is that the xdp frame memory type depends on the xdp buff memory type, and the function always assumes a page pool type, which is incorrect for zero copy XSK pool-based buffers. The crash log indicates an "Unable to handle kernel paging request" error.

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