CVE-2026-64120

A flaw was found in the Linux kernel's ethtool network utility. Insufficient error handling in the phy_prepare_data() function, specifically for memory allocation failures when handling network device names, can lead to a NULL pointer dereference. This vulnerability can cause a kernel panic in phy_reply_size() when processing network device information, resulting in a Denial of Service (DoS) for the system.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.