CVE-2022-1195

Local system crash via premature hamradio resource release

Published Apr 29, 2022 · Updated Aug 2, 2024

Use-after-free in Linux Kernel 5.16-rc1 hamradio drivers allows local users to crash the system by detaching an MKISS or 6pack device. The detach cleanup releases buffers or network-device state before synchronized transmit work finishes, causing an in-flight path to access freed memory. Reaching the flaw requires local low-privileged access and a configured MKISS or 6pack device; the reported consequence is a system crash.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Linux Kernel 5.16-rc1 hamradio drivers allows local users to crash the system by detaching an MKISS or 6pack device. The detach cleanup releases buffers or network-device state before synchronized transmit work finishes, causing an in-flight path to access freed memory. Reaching the flaw requires local low-privileged access and a configured MKISS or 6pack device; the reported consequence is a system crash.

The record

CVE
CVE-2022-1195
Published
Apr 29, 2022
Updated
Aug 2, 2024
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, CWE-362, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=kernel 5.16 rc1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=kernel 5.16 rc1

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P
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-416Use After Free
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499Endpoint Denial of Service

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

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Your stack

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