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CVE-2022-50232

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

arm64: set UXN on swapper page tables

[ This issue was fixed upstream by accident in c3cee924bd85 ("arm64:
  head: cover entire kernel image in initial ID map") as part of a
  large refactoring of the arm64 boot flow. This simple fix is therefore
  preferred for -stable backporting ]

On a system that implements FEAT_EPAN, read/write access to the idmap
is denied because UXN is not set on the swapper PTEs. As a result,
idmap_kpti_install_ng_mappings panics the kernel when accessing
__idmap_kpti_flag. Fix it by setting UXN on these PTEs.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
Diese Information steht angemeldeten Benutzern zur Verfügung.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < 775871d4be0d75e219cca937af843a4a1b60489a
Version 18107f8a2df6bf1c6cac8d0713f757f866d5af51
Status affected
Version < c3cee924bd855184d15bc4aa6088dcf8e2c1394c
Version 18107f8a2df6bf1c6cac8d0713f757f866d5af51
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.13
Status affected
Version < 5.13
Version 0
Status unaffected
Version <= 5.15.*
Version 5.15.60
Status unaffected
Version <= *
Version 6.0
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.059
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String