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CVE-2026-46171

Опубликовано: 28 мая 2026
Источник: redhat
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.

A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) for RISC-V architecture. This vulnerability occurs when a second memory allocation fails during the vector context setup, causing a previously allocated memory block to be leaked. Over time, repeated occurrences of this issue could lead to memory exhaustion, potentially impacting system stability and availability.

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

Дефект:
CWE-772
https://bugzilla.redhat.com/show_bug.cgi?id=2482574kernel: riscv: kvm: fix vector context allocation leak

EPSS

Процентиль: 3%
0.00126
Низкий

Связанные уязвимости

CVSS3: 5.5
ubuntu
2 месяца назад

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.

CVSS3: 5.5
nvd
2 месяца назад

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.

msrc
2 месяца назад

riscv: kvm: fix vector context allocation leak

CVSS3: 5.5
debian
2 месяца назад

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

CVSS3: 5.5
github
2 месяца назад

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.

EPSS

Процентиль: 3%
0.00126
Низкий