PT-2022-5915
CVE-2022-3104
·
Published
2022-01-19
·
Updated
2026-10-14
Description by
CVSS 3.1
5.5
MediumMetricsAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.16-rc6
Description
The issue is related to the
lkdtm ARRAY BOUNDS function in the drivers/misc/lkdtm/bugs.c module of the Linux kernel. It lacks a check of the return value of kmalloc() and will cause a null pointer dereference. This can lead to a denial of service or potentially allow an attacker to elevate their privileges.Recommendations
For Linux kernel versions prior to 5.16-rc6, consider disabling the
lkdtm ARRAY BOUNDS function in the drivers/misc/lkdtm/bugs.c module as a temporary workaround until a patch is available. Restrict access to the vulnerable module to minimize the risk of exploitation. Avoid using the kmalloc() function in the affected module until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploitability
Exploit
Impacts
Researchers
Vendors
Affected products
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