CVE Database›Document archive›CVE-2022-44033

CVE-2022-44033

Kernel: A race condition between cm4040_open() and reader_detach() may 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 use-after-free flaw was found in the Linux Kernel. This issue occurs due to a race between cm4040_open() and reader_detach() in drivers/char/pcmcia/cm4040_cs.c when a physically proximate attacker removes a PCMCIA device while calling open().

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 4040 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