PT-2025-46632 · Linux+3 · Linux Kernel+3
Published
2025-08-06
·
Updated
2026-04-20
·
CVE-2025-40157
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the Linux kernel related to the i10nm edac driver on some Intel Granite Rapids servers. A call trace may appear due to a shift-out-of-bounds error in
drivers/edac/skx common.c:453:16. This occurs when a BIOS disables a memory controller without any populated memory DIMMs, resulting in an invalid value (~0) in the DIMMMTR register. The issue is triggered during DIMM enumeration on a disabled memory controller. The function skx get dimm info.cold is called within skx edac common, which in turn is called by i10nm get dimm config within i10nm edac, and ultimately by skx register mci and i10nm init.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Intel Granite Rapids
Linuxmint
Linux Kernel
Ubuntu