CVE-2024-46832

Service interruption via repeated platform timer lookup

Published Sep 27, 2024 · Updated May 11, 2026

Availability flaw in the MIPS clock-event driver in Linux allows local users to interrupt service during secondary CPU initialization. r4k_clockevent_init calls get_c0_compare_int on every CPU before checking cp0_timer_irq_installed, causing a secondary CPU to enter code that can sleep from invalid context. Reachability requires a MIPS multiprocessor system with its timer IRQ already installed; public sources identify no separate user-controlled input.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Availability flaw in the MIPS clock-event driver in Linux allows local users to interrupt service during secondary CPU initialization. r4k_clockevent_init calls get_c0_compare_int on every CPU before checking cp0_timer_irq_installed, causing a secondary CPU to enter code that can sleep from invalid context. Reachability requires a MIPS multiprocessor system with its timer IRQ already installed; public sources identify no separate user-controlled input.

The record

CVE
CVE-2024-46832
Published
Sep 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 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

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=2.6.24
  2. Affected versionversion=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <189d3ed3b25beee26ffe2abed278208bece13f52
  3. Affected versionversion=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <32ee0520159f1e8c2d6597c19690df452c528f30
  4. Affected versionversion=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <50f2b98dc83de7809a5c5bf0ccf9af2e75c37c13
  5. Affected versionversion=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <b1d2051373bfc65371ce4ac8911ed984d0178c98
  6. Affected versionversion=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <d3ff0f98a52f0aafe35aa314d1c442f4318be3db
  7. Affected versionversion=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <e6cd871627abbb459d0ff6521d6bb9cf9d9f7522

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.24; version=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <189d3ed3b25beee26ffe2abed278208bece13f52; version=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <32ee0520159f1e8c2d6597c19690df452c528f30; version=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <50f2b98dc83de7809a5c5bf0ccf9af2e75c37c13; version=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <b1d2051373bfc65371ce4ac8911ed984d0178c98; version=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <d3ff0f98a52f0aafe35aa314d1c442f4318be3db; version=38760d40ca61b18b2809e9c28df8b3ff9af8a02b <e6cd871627abbb459d0ff6521d6bb9cf9d9f7522

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.

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

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo