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Vulnerabilities CVE-2026-68440

CVE-2026-68440

High
Open
TLP:CLEAR

net: txgbe: fix heap overflow when reading module EEPROM

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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.

Details

CVSS Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Aug 12, 2026
Last Modified
Aug 13, 2026
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