CVE-2022-41848

Availability loss via PCMCIA removal race

Published Sep 30, 2022 · Updated May 20, 2025

A race condition in Linux kernel 5.19.12 and earlier allows physically proximate attackers to trigger a use-after-free. The synclink_cs driver frees MGSLPC_INFO in mgslpc_detach when a PCMCIA card is removed while mgslpc_ioctl still uses the structure because object lifetime is not reference-counted. Exploitation requires physical access to remove the active card during an ioctl call and can interrupt the host; no data access or modification is reported.

CVSS severity4.2
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Linux kernel 5.19.12 and earlier allows physically proximate attackers to trigger a use-after-free. The synclink_cs driver frees MGSLPC_INFO in mgslpc_detach when a PCMCIA card is removed while mgslpc_ioctl still uses the structure because object lifetime is not reference-counted. Exploitation requires physical access to remove the active card during an ioctl call and can interrupt the host; no data access or modification is reported.

The record

CVE
CVE-2022-41848
Published
Sep 30, 2022
Updated
May 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-362, CWE-416, T1499
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 30, 2022CVE publishedPublication date reported by the CVE source.
  2. May 20, 2025Record 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

4.2CISA-ADPCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
4.2NIST NVDCVSS:3.1/AV:P/AC:H/PR:N/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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416Use After Free
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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