CVE-2018-25020: The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instructio...

Security readout for executives and security teams

This is a Linux kernel BPF bug present before kernel 4.17. A malformed BPF program path involving long jumps and instruction expansion can cause an overflow in kernel BPF handling. The source bundle does not provide CVSS, attack path, or confirmed exploitation. Likely exposure is Linux-derived systems running kernels before 4.17, or vendor kernels that did not backport the upstream fix. NetApp published an advisory, but the bundle does not enumerate affected NetApp versions or other downstream products. Treat this as a kernel lifecycle and vendor-patch tracking item. Prioritize internet-facing, multi-tenant, or shared workload platforms first, but avoid emergency language because severity, exploitability, and active exploitation are not established in the provided sources. Mitigation focus: Upgrade affected Linux kernels to 4.17 or a vendor-supported fixed backport.; Check vendor advisories for product-specific fixed versions and deployment guidance.; For NetApp environments, review advisory NTAP-20211229-0005 for applicability..

Prepared

Jun 2, 2026, 17:59 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.