kernel driver ioctl

The kernel driver ioctl tag on WindowsForum.com covers discussions about input/output control (ioctl) operations in kernel drivers, with a focus on security vulnerabilities and best practices. Recent content highlights a specific flaw in the Exynos DRM VIDI driver (CVE-2026-45958) where a user-supplied pointer was dereferenced without proper copying to kernel memory, illustrating the risks of kernel-user space boundary violations. Topics include driver development, memory safety, and attack surface reduction. While the example is Linux-specific, the principles apply broadly to kernel driver ioctl handling across operating systems, including Windows. The tag serves developers, security researchers, and IT administrators interested in driver security and robust ioctl implementation.