CVE-2022-0168: Linux Kernel

Medium severity, CVSS 4.4. EPSS: 0.3% chance of exploitation in the next 30 days.

A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.

Affected products

• Linux Linux Kernel: before 5.18 (fixed in 5.18)
• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only

Published 2022-08-26. Last modified 2026-06-17.