Linux Kernel EUVD-2026-26560

Upgrade to patched Linux kernel versions: 5.10.253+ for 5.10.x series, 5.15.203+ for 5.15.x, 6.1.168+ for 6.1.x, 6.6.134+ for 6.6.x, 6.12.81+ for 6.12.x, 6.18.22+ for 6.18.x, 6.19.12+ for 6.19.x, or 7.0+ for mainline. Distribution-specific updates are available through normal package management channels. Backport commits are referenced at git.kernel.org/stable URLs listed in references section. For systems unable to immediately patch, specific compensating controls include: (1) Unload or blacklist the me4000 kernel module if me4000 hardware is not actively used (add 'blacklist me4000' to /etc/modprobe.d/blacklist.conf) - this completely eliminates the attack surface with no side effects if hardware is unused; (2) Restrict access to /sys/class/firmware and firmware loading paths to root-only using filesystem permissions and SELinux/AppArmor policies - note this may interfere with legitimate firmware loading for other devices during hotplug events; (3) Deploy kernel lockdown mode (integrity or confidentiality level) to restrict unsigned firmware loading - this affects all firmware operations system-wide, not just me4000, and may break hardware requiring unsigned firmware. Trade-offs: module blacklisting is safest with minimal side effects; firmware path restrictions require careful testing; kernel lockdown has broad system impact. Verify patch application by checking kernel version with 'uname -r' and confirming it matches patched releases.