CVE-2022-44034

Kernel-memory corruption via PCMCIA removal race

Published Oct 30, 2022 · Updated Aug 3, 2024

Race condition in the Linux kernel through 6.0.6 allows physically proximate attackers to corrupt kernel memory through the SCR24x driver. scr24x_remove() can free driver state while scr24x_open() concurrently opens the device, causing the open path to access released memory. Exploitation requires physical removal of a PCMCIA device during open(), and public records do not document a demonstrated privilege-gain or code-execution path.

CVSS severity6.4
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel through 6.0.6 allows physically proximate attackers to corrupt kernel memory through the SCR24x driver. scr24x_remove() can free driver state while scr24x_open() concurrently opens the device, causing the open path to access released memory. Exploitation requires physical removal of a PCMCIA device during open(), and public records do not document a demonstrated privilege-gain or code-execution path.

The record

CVE
CVE-2022-44034
Published
Oct 30, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-362
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 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

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.4NIST NVDCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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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