CVE-2026-43087 | Linux Kernel up to 6.19.13 mcp23s08 _raw_spin_lock_irq denial of service

A vulnerability classified as critical was found in Linux Kernel up to 6.19.13. The affected element is the function _raw_spin_lock_irq of the component mcp23s08. Executing a manipulation can lead to denial of service.

This vulnerability is tracked as CVE-2026-43087. The attack is only possible within the local network. No exploit exists.

Upgrading the affected component is advised.