CVE-2026-74220 [HIGH] – U-Boot before 2026.10-rc5 contains a buffer overflow in nfs_read_reply() function in net/n

U-Boot before 2026.10-rc5 contains a buffer overflow in nfs_read_reply() function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the destination buffer, crashing the bootloader or corrupting memory.