Linux Kernel EUVD-2026-55278

The primary remediation is to upgrade to Linux kernel 7.1.6 (stable) or 7.2-rc5. The specific fix commits are available at https://git.kernel.org/stable/c/e091351b38818ef620d27f44f4bfd625f13afbff and https://git.kernel.org/stable/c/159fdc3e01dca5fdbc412fcd8b239895733a270d; downstream Linux distributions should be monitored for kernel security errata incorporating these commits. As a compensating control pending patching, administrators should restrict access to the tracefs mount point (typically /sys/kernel/debug/tracing) to root only via mount options or filesystem permissions, preventing non-privileged users from configuring enable_event triggers - note this disables non-root use of kernel tracing tools such as perf-trace-based workflows. Additionally, enforcing kernel lockdown mode (integrity or confidentiality) blocks unprivileged interaction with the tracing infrastructure entirely, but disables a broad range of kernel debugging capabilities as a trade-off. Restricting kernel module loading to trusted administrators via sysctl kernel.modules_disabled=1 after boot, or via LSM policy (SELinux/AppArmor), eliminates the module-unload half of the race and is a lower-impact compensating control. No patch version is independently verified against a formal kernel.org release announcement beyond the EUVD listing.