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CVE-2026-63940

Опубликовано: 19 июл. 2026
Источник: nvd
CVSS3: 9.3
EPSS Низкий

Описание

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.

EPSS

Процентиль: 8%
0.00185
Низкий

9.3 Critical

CVSS3

Дефекты

CWE-190

Связанные уязвимости

CVSS3: 9.3
ubuntu
3 месяца назад

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.

CVSS3: 7
redhat
3 месяца назад

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.

CVSS3: 7.7
msrc
3 месяца назад

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

CVSS3: 9.3
debian
3 месяца назад

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

CVSS3: 9.3
github
3 месяца назад

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.

EPSS

Процентиль: 8%
0.00185
Низкий

9.3 Critical

CVSS3

Дефекты

CWE-190