CVE-2022-0168

4.4 MEDIUM 0.3% exploit odds Fix listed

What it is

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.

At a glance

Exploitability: Can be exploited locally on the machine with an admin-level account. High risk of service disruption.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2022-08-26 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 04:20 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.3% in the next 30 days (EPSS).
Severity: 4.4 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2022-08-26 18:15 UTC
Last modified: 2026-06-17 04:20 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-476 · NULL pointer dereference
Record status: Modified

Affected

Linux Kernel < 5.18
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux 9.0

Attack profile CVSS 3.1 · 4.4

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2022-0168.md and follow it. Check whether this project is affected by CVE-2022-0168. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record