CVE-2026-9771

The flashcopy system call is verified by zvrfyflashcopy in drivers/flash/flashutil.c. On builds with CONFIGUSERSPACE enabled, this handler is the kernel-side trust boundary for a user-mode caller. Prior to the fix it validated only the output buffer KSYSCALLMEMORYWRITE and passed the two struct...

CVE-2026-9771

CVE-2026-9771 is a missing device-pointer validation vulnerability in the Zephyr RTOS flash_copy() system call (drivers/flash/flash_util.c), affecting builds with CONFIG_USERSPACE enabled. The handler z_vrfy_flash_copy() validated only the output buffer but passed src_dev and dst_dev directly to ...