PT-2024-29255 · Linux+5 · Linux Kernel+5
Published
2024-06-03
·
Updated
2025-09-29
·
CVE-2024-41084
CVSS v3.1
5.5
Medium
| Vector | AV: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 (affected versions not specified)
Description
The issue is related to a null pointer dereference in the region lookup of the Linux kernel. The function
cxl dpa to region() looks up a region based on a memdev and DPA. It wrongly assumes that an endpoint found mapping the DPA is also of a fully assembled region. When this assumption is not true, it leads to a null pointer dereference when looking up the region name. This occurs during testing of region lookup after a failure to assemble a BIOS defined region or if the lookup raced with the assembly of the BIOS defined region. The behavior change is that the kernel oops due to a null pointer dereference is replaced with a dev dbg() message noting that an endpoint was mapped.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Linuxmint
Linux Kernel
Red Hat
Suse
Ubuntu