CVE-2022-44032
Kernel: Race between cmm_open() and cm4000_detach() result in UAF
Severity
ModerateRed Hat Product Security
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 · 6.4CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free