CVE-2026-68440

high

Description

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix heap overflow when reading module EEPROM txgbe_read_eeprom_hostif() always copies round_up(length, 4) bytes into the caller buffer, which ethtool allocates with exactly 'length' bytes. A non-4-aligned length therefore causes an out-of-bounds write. Copy only the remaining bytes on the final dword instead.

References

https://git.kernel.org/stable/c/febcced6958158e7e90a55a8567b3f5c3639c0b9

https://git.kernel.org/stable/c/6a905a71fd43ce8b45f05044b11491337f232c9d

Details

Source: Mitre, NVD

Published: 2026-08-12

Updated: 2026-08-12

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High