CVE-2024-53160

Local service interruption via unlocked RCU timer rearm

Published Dec 24, 2024 · Updated May 11, 2026

Race condition in the Linux kernel allows local users to interrupt service through concurrent access to an RCU monitor timer. The kfree_rcu_monitor function rearms monitor_work.timer without holding krcp->lock while kvfree_call_rcu reads the same timer expiration under that lock. Low-privileged local access and precise timing are required, and the published impact is limited to availability.

CVSS severity4.7
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Race condition in the Linux kernel allows local users to interrupt service through concurrent access to an RCU monitor timer. The kfree_rcu_monitor function rearms monitor_work.timer without holding krcp->lock while kvfree_call_rcu reads the same timer expiration under that lock. Low-privileged local access and precise timing are required, and the published impact is limited to availability.

The record

CVE
CVE-2024-53160
Published
Dec 24, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.3
  2. Affected versionversion=8fc5494ad5face62747a3937db66b00db1e5d80b <05b8ea1f16667f07c8e5843fb4bde3e49d49ead8
  3. Affected versionversion=8fc5494ad5face62747a3937db66b00db1e5d80b <5ced426d97ce84299ecfcc7bd8b38f975fd11089
  4. Affected versionversion=8fc5494ad5face62747a3937db66b00db1e5d80b <967a0e61910825d1fad009d836a6cb41f7402395
  5. Affected versionversion=8fc5494ad5face62747a3937db66b00db1e5d80b <a23da88c6c80e41e0503e0b481a22c9eea63f263

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.3; version=8fc5494ad5face62747a3937db66b00db1e5d80b <05b8ea1f16667f07c8e5843fb4bde3e49d49ead8; version=8fc5494ad5face62747a3937db66b00db1e5d80b <5ced426d97ce84299ecfcc7bd8b38f975fd11089; version=8fc5494ad5face62747a3937db66b00db1e5d80b <967a0e61910825d1fad009d836a6cb41f7402395; version=8fc5494ad5face62747a3937db66b00db1e5d80b <a23da88c6c80e41e0503e0b481a22c9eea63f263

Published CVSS scores

4.7CISA-ADPCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7NIST NVDCVSS:3.1/AV:L/AC:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499Endpoint Denial of Service

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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