CVE-2026-68440

A flaw was found in the Linux kernel's txgbe network driver. When reading module EEPROM (Electrically Erasable Programmable Read-Only Memory), the txgbe_read_eeprom_hostif() function can attempt to copy more data than the allocated buffer size if the data length is not a multiple of four. This out-of-bounds write can lead to memory corruption, potentially causing system instability or a denial of service.

This issue affects Wangxun txgbe network adapters. ethtool EEPROM reads with non-4-byte-aligned lengths cause txgbe_read_eeprom_hostif() to write past the caller buffer. Systems without txgbe hardware are not affected.

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.