CVE-2026-68121

The CVE-2026-68121 issue affects the Linux kernel PPPoE path. During pppoe_sendmsg(), a pointer to the PPPoE header is saved before dev_hard_header(); if a device header callback reallocates the skb head (e.g., when a non-Ethernet port is added to a team during a blocked copy_from_user()), PPPoE ...

EUVD-2026-55502

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...