CVE-2026-68440 PUBLISHED

net: txgbe: fix heap overflow when reading module EEPROM

Assigner: Linux
Reserved: 30.07.2026 Published: 12.08.2026 Updated: 12.08.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 9b97b6b5635b3de18debd07a3adcf25198ec8299 to febcced6958158e7e90a55a8567b3f5c3639c0b9 (excl.)
  • affected from 9b97b6b5635b3de18debd07a3adcf25198ec8299 to 6a905a71fd43ce8b45f05044b11491337f232c9d (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.19 is affected
  • unaffected from 0 to 6.19 (excl.)
  • unaffected from 7.1.6 to 7.1.* (incl.)
  • unaffected from 7.2-rc5 to * (incl.)

References