Linux Kernel CVE-2026-43014

Upgrade Linux kernel to patched versions: kernel 5.10.253 or later for 5.10.x users, 5.15.203 or later for 5.15.x users, 6.1.168 or later for 6.1.x, 6.6.134 or later for 6.6.x, 6.12.81 or later for 6.12.x, 6.18.22 or later for 6.18.x, 6.19.12 or later for 6.19.x, or 7.0 for latest releases. Patches are available in the Linux kernel stable trees via https://git.kernel.org/stable/. For systems unable to immediately upgrade, disable or avoid repeated loading and unloading of the MACB driver module (use rmmod -s to prevent reload cycles). Alternatively, restrict module load/unload capability to prevent privilege escalation vectors if unprivileged users have access. If the system uses MACB hardware (verify with ethtool -i eth0 or lspci | grep -i cadence), prioritize kernel upgrade. For embedded systems using MACB on ARM SoCs, coordinate with firmware/bootloader updates if applicable, as some platforms may bundle kernel patches.