CVE-2026-53075

In the Linux kernel, CVE-2026-53075 affects PPP handling of unattached administrative ioctls. The flaw permits a local unprivileged user who creates a new user namespace (CLONE_NEWUSER) to obtain CAP_NET_ADMIN in that namespace and still invoke PPPIOCNEWUNIT, PPPIOCATTACH, or PPPIOCATTCHAN agains...