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CVE-2025-40266

Опубликовано: 04 дек. 2025
Источник: redhat

Описание

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value [U32_MAX - sizeof(struct ffa_composite_mem_region) + 1, U32_MAX] is set from the host kernel.

Отчет

Red Hat Enterprise Linux is not impacted by this flaw because the vulnerable Arm64 hypervisor memory sharing code is not present in supported kernels. The underlying boundary validation issue in the Arm64 KVM hypervisor FF-A implementation is omitted from Red Hat distributions. Consequently, standard enterprise host systems and virtual machine workloads cannot be exploited.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
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 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected

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Дополнительная информация

https://bugzilla.redhat.com/show_bug.cgi?id=2418884kernel: KVM: arm64: Check the untrusted offset in FF-A memory share

Связанные уязвимости

CVSS3: 8.2
ubuntu
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value [U32_MAX - sizeof(struct ffa_composite_mem_region) + 1, U32_MAX] is set from the host kernel.

CVSS3: 8.2
nvd
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value [U32_MAX - sizeof(struct ffa_composite_mem_region) + 1, U32_MAX] is set from the host kernel.

CVSS3: 7.1
msrc
11 месяцев назад

KVM: arm64: Check the untrusted offset in FF-A memory share

CVSS3: 8.2
debian
11 месяцев назад

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

CVSS3: 8.2
github
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value [U32_MAX - sizeof(struct ffa_composite_mem_region) + 1, U32_MAX] is set from the host kernel.