CVE-2026-68440net: txgbe: fix heap overflow when reading module EEPROM
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 9b97b6b5635b3de18debd07a3adcf25198ec8299 before febcced6958158e7e90a55a8567b3f5c3639c0b9; 9b97b6b5635b3de18debd07a3adcf25198ec8299 builds before 6a905a71fd43ce8b45f05044b11491337f232c9d | CNA record |
References
- https://git.kernel.org/stable/c/febcced6958158e7e90a55a8567b3f5c3639c0b9
- https://git.kernel.org/stable/c/6a905a71fd43ce8b45f05044b11491337f232c9d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.