cve deadlock

The cve deadlock tag covers discussions about CVE-2026-43319, a Linux kernel spidev deadlock where competing read/write and ioctl paths can acquire spi_lock and buf_lock in opposite orders, causing SPI device access to hang. While this specific vulnerability targets Linux, it serves as a reminder for Windows shops that kernel security often involves subtle concurrency issues rather than flashy exploits. The tag explores how such deadlocks can affect systems in mixed environments and the importance of understanding lock inversion risks in kernel drivers.