udmabuf

The udmabuf tag on WindowsForum.com covers discussions about the Linux kernel's udmabuf driver, a facility for allocating and exporting physically contiguous DMA buffers from user space. Recent content highlights CVE-2025-37803, a buffer size overflow vulnerability in udmabuf creation that can lead to kernel memory corruption and denial of service. Topics include the driver's role in userland DMA buffer management, security implications of the overflow flaw, and mitigation strategies such as patching or module disabling. The tag is relevant for Linux kernel developers, system administrators, and security researchers focused on kernel vulnerabilities and DMA buffer handling.