CVE Database›Document archive›CVE-2022-44032

CVE-2022-44032

Kernel: Race between cmm_open() and cm4000_detach() result in UAF

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Severity

Moderate

Red Hat Product Security

6.4

CVSS 3.1

Review impact separately from score.

Published · September 18, 2022

Updated · November 22, 2025

Description

A possible race condition was found in drivers/char/pcmcia/cm4000_cs.c between the cmm_open() and the cm4000_detach() functions if the user physically removes the PCMCIA device in the Linux kernel. This flaw may eventually result in a use-after-free (UAF) flaw.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

This flaw can be mitigated by preventing the affected CardMan Mobile 4000 kernel module from loading during the boot time. Ensure the module is added into the blacklist file.

Refer:  
How do I blacklist a kernel module to prevent it from loading automatically? 
https://access.redhat.com/solutions/41278

CVSS / CWE

CVSS 3.1 · 6.4
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free