CVE-2026-63995

CVE-2026-63995 affects the Linux kernel ethtool CMIS firmware update path. The CMIS FW update code reads start_cmd_payload_size from the module FW Management Features CDB reply and uses it directly as the byte count for memcpy, writing into a destination buffer of 112 bytes (ETHTOOL_CMIS_CDB_LPL_...

EUVD-2026-45568

In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis: validate startcmdpayloadsize from module The CMIS firmware update code reads startcmdpayloadsize from the module's FW Management Features CDB reply and uses it directly as the byte count for memcpy. The destination...