CVE-2026-92515 bpf: Preserve unique-field state across nested structs

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve unique-field state across nested structs btffindstructfield initializes a fresh seen mask for every recursive descent. Unique special fields in different levels of the same aggregate therefore do not see one another...

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...

Linux eBPF Heap Buffer Overflow Privilege Escalation

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...

PT-2021-6870

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw was found in the Linux kernel's BPF subsystem due to unrestricted eBPF usage by the BPF BTF LOAD, leading to a possible out-of-bounds memory write. This issue allows a local user ...

CVE-2021-29648

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolvedids and resolvedsizes are intentionally uninitialized in the vmlinux BPF Type Format BTF, which can cause a system crash upon an unexpected access attempt in mapcreate in...