CVE-2022-3061

Local system crash via unchecked pixclock division

Published Sep 1, 2022 · Updated Aug 3, 2024

Divide by zero in the i740 framebuffer driver in Linux Kernel 5.18-rc5 allows local users to crash the system through an ioctl. The i740fb_set_par path consumes a user-controlled pixclock value without first rejecting zero, so i740fb_decode_var divides by that value while applying framebuffer parameters. Access to the affected framebuffer ioctl and an active Intel 740 framebuffer device is required; successful exploitation terminates the running kernel and interrupts all services.

CVSS severity5.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Divide by zero in the i740 framebuffer driver in Linux Kernel 5.18-rc5 allows local users to crash the system through an ioctl. The i740fb_set_par path consumes a user-controlled pixclock value without first rejecting zero, so i740fb_decode_var divides by that value while applying framebuffer parameters. Access to the affected framebuffer ioctl and an active Intel 740 framebuffer device is required; successful exploitation terminates the running kernel and interrupts all services.

The record

CVE
CVE-2022-3061
Published
Sep 1, 2022
Updated
Aug 3, 2024
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-369
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Linux kernel 5.18-rc5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=Linux kernel 5.18-rc5

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-369Divide By Zero

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo