CVE-2024-57256: Denx U-Boot

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.

Affected products

• Denx U-Boot: up to and including 2024.10

Published 2025-02-18. Last modified 2026-06-17.