CVE-2022-0168 Null dereference in kernel

What is CVE-2022-0168?

CVE-2022-0168 is a medium-severity vulnerability in Linux kernel, published on 26 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-476

Which versions are affected by CVE-2022-0168?

It affects 2 products.

Products include Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2022-0168?

Apply the vendor's patch.

Is CVE-2022-0168 being exploited?

There is no known exploitation of CVE-2022-0168 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• How this page is made

Also known as AZL-10758, DEBIAN-CVE-2022-0168, UBUNTU-CVE-2022-0168.