CVE-2021-4148: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.

Affected products

• Fedoraproject Fedora: version 35 only
• Linux Linux Kernel: before 5.14.16 (fixed in 5.14.16)

Published 2022-03-23. Last modified 2026-06-17.