CLSA-2026-1773832495 Fix of 114 CVEs

CVE-2023-53515 - virtio-mmio: don't break lifecycle of vmdev CVE-2023-53515 CVE-2025-39967 - fbcon: fix integer overflow in fbcondosetfont CVE-2025-39967 - fbcon: Fix OOB access in font allocation CVE-2025-39967 CVE-2025-38702 - fbdev: fix potential buffer overflow in doregisterframebuffer...

kernel: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns

A vulnerability was found in cloneprivatemount in fs/namespace.c in filesystem subsystem in the Linux Kernel.This flaw could allow a local attacker to crash the system or leak kernel internal information...