---
id: CVE-2026-64105
title: 'KVM: arm64: vgic: Free private_irqs when init fails after allocation'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: arm64: vgic: Free private_irqs when init fails after allocation

  Companion to commit 250f25367b58 ("KVM: arm64: Tear down vGIC on
  failed vCPU creation"), which add…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 <
    173fb86e5519dbe7aabed1f5fa7456152a4a2e38
  - >-
    Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 <
    7023900b4988fb6f4a59d304d878003ff562e98d
  - >-
    Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 <
    e690caa54a6139d98495ac69626807623520babd
  - >-
    Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 <
    f19c354dbd457759dfcf1195ab4bdba2bb568323
  - Linux 6.10
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:29:57.826906Z'
published: '2026-07-19'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:34:26.031Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-64105'
references:
  - url: 'https://git.kernel.org/stable/c/173fb86e5519dbe7aabed1f5fa7456152a4a2e38'
  - url: 'https://git.kernel.org/stable/c/7023900b4988fb6f4a59d304d878003ff562e98d'
  - url: 'https://git.kernel.org/stable/c/e690caa54a6139d98495ac69626807623520babd'
  - url: 'https://git.kernel.org/stable/c/f19c354dbd457759dfcf1195ab4bdba2bb568323'
tags:
  - cve.org
epss: 0.00162
epssPercentile: 0.05386
ingestedAt: '2026-11-06T16:57:43.235Z'
---

## Overview

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

KVM: arm64: vgic: Free private_irqs when init fails after allocation

Companion to commit 250f25367b58 ("KVM: arm64: Tear down vGIC on
failed vCPU creation"), which added the missing kvm_vgic_vcpu_destroy()
call to the kvm_share_hyp() failure path in kvm_arch_vcpu_create(). The
kvm_vgic_vcpu_init() failure path immediately above it has the same
shape and still needs the same cleanup.

Call kvm_vgic_vcpu_destroy() when kvm_vgic_vcpu_init() fails so private
IRQs allocated before a redistributor iodev registration failure are
released before the failed vCPU is freed.

## Affected

- `Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 < 173fb86e5519dbe7aabed1f5fa7456152a4a2e38`
- `Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 < 7023900b4988fb6f4a59d304d878003ff562e98d`
- `Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 < e690caa54a6139d98495ac69626807623520babd`
- `Linux >= 03b3d00a70b55857439511c1b558ca00a99f4126 < f19c354dbd457759dfcf1195ab4bdba2bb568323`
- `Linux 6.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.