PT-2022-6833 · Linux+3 · Linux Kernel+3
Hyunwoo Kim
·
Published
2022-10-30
·
Updated
2026-05-26
·
CVE-2022-44033
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 through 6.0.6
Description
The issue is related to a race condition between the
cm4040 open() and reader detach() functions in the drivers/char/pcmcia/cm4040 cs.c module. This condition can lead to a use-after-free scenario if a physically proximate attacker removes a PCMCIA device while the open() function is being called. The exploitation of this issue may allow an attacker to cause a denial of service or have other impacts.Recommendations
For Linux kernel versions through 6.0.6, as a temporary workaround, consider disabling the
cm4040 open() function until a patch is available. Restrict access to the drivers/char/pcmcia/cm4040 cs.c module to minimize the risk of exploitation. Avoid using the open() function with PCMCIA devices until the issue is resolved. 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