-

CVE-2025-38733

In the Linux kernel, the following vulnerability has been resolved:

s390/mm: Do not map lowcore with identity mapping

Since the identity mapping is pinned to address zero the lowcore is always
also mapped to address zero, this happens regardless of the relocate_lowcore
command line option. If the option is specified the lowcore is mapped
twice, instead of only once.

This means that NULL pointer accesses will succeed instead of causing an
exception (low address protection still applies, but covers only parts).
To fix this never map the first two pages of physical memory with the
identity mapping.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
VendorLinux
≫
Product Linux
Default Statusunaffected
Version < 30bf5728bb217a6d1ba73f44094c9b9c6bc9a567
Version 32db401965f165f7c44447d0508097f070c8f576
Status affected
Version < 1d7864acd497cb468a998d44631f84896f885e85
Version 32db401965f165f7c44447d0508097f070c8f576
Status affected
Version < 93f616ff870a1fb7e84d472cad0af651b18f9f87
Version 32db401965f165f7c44447d0508097f070c8f576
Status affected
Version 0b99d0e17d6a73a0526f92bc6b54b2b95e67a31d
Status affected
VendorLinux
≫
Product Linux
Default Statusaffected
Version 6.11
Status affected
Version < 6.11
Version 0
Status unaffected
Version <= 6.12.*
Version 6.12.44
Status unaffected
Version <= 6.16.*
Version 6.16.4
Status unaffected
Version <= *
Version 6.17-rc3
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.05
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string