CVE-2026-64280

The CVE concerns the Linux kernel’s FPGA driver for DFL FPGA management (fpga: dfl-afu). A 64-bit length passed via the DFL_FPGA_PORT_DMA_MAP ioctl to afu_ioctl_dma_map() can overflow when computing the number of pages (length >> PAGE_SHIFT) passed to pin_user_pages_fast(), since npages is ...

PT-2026-64501

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists where afu ioctl dma map accepts a 64-bit length from userspace via the DFL FPGA PORT DMA MAP ioctl without an upper bound check. This value is passed to afu dma pin pages...