PT-2022-6834 · Linux+3 · Linux Kernel+3
Hyunwoo Kim
·
Published
2022-10-30
·
Updated
2026-05-26
·
CVE-2022-44032
CVSS v3.1
6.4
Medium
| Vector | AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.0.7
Description
The issue is related to a race condition between the
cmm open() and cm4000 detach() functions in the drivers/char/pcmcia/cm4040 cs.c module, leading to a use-after-free condition. This can be triggered by removing a PCMCIA device while the open() function is being called, potentially allowing an attacker to cause a denial of service or other impact.Recommendations
For Linux kernel versions prior to 6.0.7, consider disabling the
cmm open() function or restricting access to the cm4040 cs.c module until a patch is available. As a temporary workaround, avoid removing PCMCIA devices while the open() function is being called to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Debian
Linux Kernel
Suse