{"id":"CVE-2026-68440","summary":"net: txgbe: fix heap overflow when reading module EEPROM","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: txgbe: fix heap overflow when reading module EEPROM\n\ntxgbe_read_eeprom_hostif() always copies round_up(length, 4) bytes\ninto the caller buffer, which ethtool allocates with exactly 'length'\nbytes. A non-4-aligned length therefore causes an out-of-bounds write.\nCopy only the remaining bytes on the final dword instead.","modified":"2026-08-13T04:02:35.946449420Z","published":"2026-08-12T00:07:29.605Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68440.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6a905a71fd43ce8b45f05044b11491337f232c9d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/febcced6958158e7e90a55a8567b3f5c3639c0b9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68440.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68440"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9b97b6b5635b3de18debd07a3adcf25198ec8299"},{"fixed":"febcced6958158e7e90a55a8567b3f5c3639c0b9"},{"fixed":"6a905a71fd43ce8b45f05044b11491337f232c9d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68440.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68440.json"}}],"schema_version":"1.9.0"}