kernel: scsi: scsi_transport_fc: Widen FPIN pname walker counter to u32

A flaw was found in the Linux kernel's Fibre Channel FC transport component. An adjacent Fibre Channel fabric actor, such as a compromised switch or fabric controller, can send a specially crafted FPIN ELS Fabric Performance Incentive Notification Extended Link Service frame. This malformed frame...

CVE-2026-63889: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: scsi: scsitransportfc: Widen FPIN pname walker counter to u32 An adjacent Fibre Channel fabric actor that can deliver an FPIN ELS frame to an lpfc or qla2xxx Linux initiator can trigger a non-return in the generic FC transport...