CVE-2024-50114

Host-kernel crash via stale redistributor registration

Published Nov 5, 2024 · Updated Aug 5, 2026

Use-after-free in arm64 KVM in Linux 6.11 through 6.11.5 allows local users with /dev/kvm access to crash the host kernel. On failed vCPU creation, __kvm_vgic_vcpu_destroy() leaves the redistributor MMIO device registered, so teardown later dereferences freed vCPU memory. Access to /dev/kvm and an arm64 host with GICv3 are required; reusing a vCPU ID or exhausting file descriptors creates the failure path.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in arm64 KVM in Linux 6.11 through 6.11.5 allows local users with /dev/kvm access to crash the host kernel. On failed vCPU creation, __kvm_vgic_vcpu_destroy() leaves the redistributor MMIO device registered, so teardown later dereferences freed vCPU memory. Access to /dev/kvm and an arm64 host with GICv3 are required; reusing a vCPU ID or exhausting file descriptors creates the failure path.

The record

CVE
CVE-2024-50114
Published
Nov 5, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.11
  2. Affected versionversion=f616506754d34bcfdbfbc7508b562e5c98461e9a <6bcc2890b883ba1d16b8942937750565f6e9db0d
  3. Affected versionversion=f616506754d34bcfdbfbc7508b562e5c98461e9a <ae8f8b37610269009326f4318df161206c59843e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.11; version=f616506754d34bcfdbfbc7508b562e5c98461e9a <6bcc2890b883ba1d16b8942937750565f6e9db0d; version=f616506754d34bcfdbfbc7508b562e5c98461e9a <ae8f8b37610269009326f4318df161206c59843e

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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