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 BPF_BTF_LOAD() function in the eBPF subsystem of Linux’s operating systems allows a malicious actor to escalate their privileges or cause service interruptions.

The vulnerability of the BPFBTFLOAD function in the eBPF subsystem of Linux kernels involves operations that go beyond the buffer boundaries in memory. Exploiting this vulnerability can allow attackers to gain increased privileges or cause system failures...