Nilfs-dev vulnerabilities

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Published CVEs affecting Nilfs-dev products: 1 record(s), with severity, exploitation and fixes.

Exploited only (KEV) →

CVE-2026-55392 Medium · 5.5 CWE-1284 Jun 18, 2026

NILFS utilities - Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size

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-of-memory conditions, crashing tools like nilfs-tune and dumpseg.