CVE-2024-53195

Host denial of service via stale IRQ-chip state

Published Dec 27, 2024 · Updated May 11, 2026

Improper KVM state management in affected Linux kernel releases allows local users to cause arm64 host denial of service via vCPU setup. After KVM_RUN enables the timer but fails because the requested vPMU is absent, repeated KVM_ARM_VCPU_INIT consults stale userspace_irqchip_in_use state and reaches WARN_ON in kvm_timer_update_irq(). Exploitation requires local KVM device access and deliberately incomplete virtual interrupt and PMU setup; no data disclosure or modification is reported.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper KVM state management in affected Linux kernel releases allows local users to cause arm64 host denial of service via vCPU setup. After KVM_RUN enables the timer but fails because the requested vPMU is absent, repeated KVM_ARM_VCPU_INIT consults stale userspace_irqchip_in_use state and reaches WARN_ON in kvm_timer_update_irq(). Exploitation requires local KVM device access and deliberately incomplete virtual interrupt and PMU setup; no data disclosure or modification is reported.

The record

CVE
CVE-2024-53195
Published
Dec 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=3.11
  2. Affected versionversion=6211753fdfd05af9e08f54c8d0ba3ee516034878 <38d7aacca09230fdb98a34194fec2af597e8e20d
  3. Affected versionversion=6211753fdfd05af9e08f54c8d0ba3ee516034878 <c16e2dba39ff6ae84bb8dc9c8e0fb21d9b2f6f5c
  4. Affected versionversion=6211753fdfd05af9e08f54c8d0ba3ee516034878 <dd2f9861f27571d47998d71e7516bf7216db0b52
  5. Affected versionversion=6211753fdfd05af9e08f54c8d0ba3ee516034878 <fe425d5239a28c21e0c83ee7a8f4cb210d29fdb4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.11; version=6211753fdfd05af9e08f54c8d0ba3ee516034878 <38d7aacca09230fdb98a34194fec2af597e8e20d; version=6211753fdfd05af9e08f54c8d0ba3ee516034878 <c16e2dba39ff6ae84bb8dc9c8e0fb21d9b2f6f5c; version=6211753fdfd05af9e08f54c8d0ba3ee516034878 <dd2f9861f27571d47998d71e7516bf7216db0b52; version=6211753fdfd05af9e08f54c8d0ba3ee516034878 <fe425d5239a28c21e0c83ee7a8f4cb210d29fdb4

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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