CVE-2026-31734 | Linux Kernel up to 6.18.21/6.19.11 sched_ext trampoline.c is_bpf_migration_disabled privilege escalation

A vulnerability has been found in Linux Kernel up to 6.18.21/6.19.11 and classified as problematic. This affects the function is_bpf_migration_disabled of the file trampoline.c of the component sched_ext. Performing a manipulation results in privilege escalation.

This vulnerability is known as CVE-2026-31734. Access to the local network is required for this attack. No exploit is available.

The affected component should be upgraded.