NILFS utilities – Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size_CVE-2026-55392
NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfs_sb_is_valid() function fails to validate s_log_block_size field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-...