CVE-2026-68287

The CVE concerns the Linux kernel drop_monitor 64-bit attribute size miscalculation. In net_dm_packet_report_fill() and net_dm_hw_packet_report_fill(), 64-bit attributes (NET_DM_ATTR_PC, NET_DM_ATTR_TIMESTAMP) use nla_put_u64_64bit(), which on 32-bit arches without CONFIG_HAVE_EFFICIENT_UNALIGNED...