CVE-2026-64354

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate BTF repeated field counts before expansion btfparsestructmetas walks user-supplied BTF during BPFBTFLOAD, and btfrepeatfields expands repeatable fields from array elements into the fixed BTFFIELDSMAX scratch array...

The vulnerability of the btf_repeat_fields() function in the kernel/bpf/btf.c module, which supports the Linux operating system’s BPF interpreter, allows a hacker to trigger a service denial.

The vulnerability of the btfrepeatfields function in the kernel/bpf/btf.c module, which is part of the Linux operating system’s BPF interpreter support, involves unvalidated array indexing. Exploiting this vulnerability could allow an attacker to trigger a service failure...