9.3

CVE-2026-63940

KVM: SEV: Ignore Port I/O requests of length '0'

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

KVM: SEV: Ignore Port I/O requests of length '0'

Explicitly ignore Port I/O requests of length '0' (or count '0'), so that
setting up the software scratch area (and other code) doesn't have to
worry about underflowing the length, and to allow for WARNing on trying
to configure the scratch area with len==0.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 291bd20d5d88814a73d43b55b9428feab2f28094
Version < 3b6035bc6bff20e89752ce4358bc4c9a9d5883f2
Status affected
Version 291bd20d5d88814a73d43b55b9428feab2f28094
Version < 2254972d4d69e279ba4e87bf0968eb08ad0d3c92
Status affected
Version 291bd20d5d88814a73d43b55b9428feab2f28094
Version < c30cde934c7813b4e3069765dac64ce3d31e34f2
Status affected
Version 291bd20d5d88814a73d43b55b9428feab2f28094
Version < 3988bd2723de407ae90fa7a6f6029b4e60238c58
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.11
Status affected
Version 0
Version < 5.11
Status unaffected
Version <= 6.12.*
Version 6.12.95
Status unaffected
Version <= 6.18.*
Version 6.18.35
Status unaffected
Version <= 7.0.*
Version 7.0.12
Status unaffected
Version <= *
Version 7.1
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.078
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.3 2.5 6
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/3b6035bc6bff20e89752ce4358bc4c9a9d5883f2
https://git.kernel.org/stable/c/2254972d4d69e279ba4e87bf0968eb08ad0d3c92
https://git.kernel.org/stable/c/c30cde934c7813b4e3069765dac64ce3d31e34f2
https://git.kernel.org/stable/c/3988bd2723de407ae90fa7a6f6029b4e60238c58