Search: CVE-2024-57889

CVE-2024-57889 addresses a Linux kernel vulnerability in the pinctrl driver for the MCP23S08 IO expander. The issue involves the driver calling a mutex lock while holding a spinlock, causing a sleeping function to be called in an atomic context, which leads to kernel bugs. The fix involves adding proper locking in certain functions and disabling internal regmap locking to prevent sleeping in atomic context.