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CVE-2026-64558

Опубликовано: 29 июл. 2026
Источник: redhat
CVSS3: 7

Описание

A flaw was found in the Linux kernel, specifically within the s390/pkey component. This vulnerability occurs because the pkey_pckmo handler function does not explicitly check the length of the target buffer. If the generated output data exceeds the provided buffer's length, the handler function fails. This could allow a local attacker to cause a denial of service.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelAffected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelAffected
Red Hat Enterprise Linux 9kernel-rtAffected

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Дополнительная информация

Статус:

Important
Дефект:
CWE-787
https://bugzilla.redhat.com/show_bug.cgi?id=2508480kernel: s390/pkey: Check length in pkey_pckmo handler implementation

7 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
nvd
3 дня назад

In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in pkey_pckmo handler implementation Explicitly check the length of the target buffer in the pkey_pckmo implementation of the key_to_protkey() handler function. The handler function fails, if the generated output data exceeds the length of the provided target buffer.

CVSS3: 7.8
debian
3 дня назад

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

CVSS3: 7.8
github
3 дня назад

In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in pkey_pckmo handler implementation Explicitly check the length of the target buffer in the pkey_pckmo implementation of the key_to_protkey() handler function. The handler function fails, if the generated output data exceeds the length of the provided target buffer.

7 High

CVSS3