CVE-2024-46829

Local system hang via locked rtmutex scheduling

Published Sep 27, 2024 · Updated May 23, 2026

Improper locking in the Linux kernel rtmutex code allows local users to hang the system by reaching the deadlock-handling path. rt_mutex_handle_deadlock() enters an endless scheduling loop while wait_lock remains held, causing scheduling in atomic context. Reaching the condition requires local low-privileged execution and affects availability without a reported data-access or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper locking in the Linux kernel rtmutex code allows local users to hang the system by reaching the deadlock-handling path. rt_mutex_handle_deadlock() enters an endless scheduling loop while wait_lock remains held, causing scheduling in atomic context. Reaching the condition requires local low-privileged execution and affects availability without a reported data-access or integrity impact.

The record

CVE
CVE-2024-46829
Published
Sep 27, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, CAPEC-25, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=1201613a70dd34bd347ba2970919b3f1d5fbfb4a
  2. Affected versionversion=2b1f3807ed9cafb59c956ce76a05d25e67103f2e
  3. Affected versionversion=3.10.49 <3.11
  4. Affected versionversion=3.12.25 <3.13
  5. Affected versionversion=3.14.10 <3.15
  6. Affected versionversion=3.15.3 <3.16
  7. Affected versionversion=3.16
  8. Affected versionversion=3.2.61 <3.3
  9. Affected versionversion=3.4.99 <3.5
  10. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <1401da1486dc1cdbef6025fd74a3977df3a3e5d0
  11. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <432efdbe7da5ecfcbc0c2180cfdbab1441752a38
  12. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <6a976e9a47e8e5b326de671811561cab12e6fb1f
  13. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <85f03ca98e07cd0786738b56ae73740bce0ac27f
  14. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <93f44655472d9cd418293d328f9d141ca234ad83
  15. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <a92d81c9efec9280681c27a2c0a963fd0f1338e0
  16. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <d33d26036a0274b472299d7dcdaa5fb34329f91b
  17. Affected versionversion=3d5c9340d1949733eb37616abd15db36aef9a57c <f13b5afc5c4889569d84c3011ce449f61fccfb28
  18. Affected versionversion=95f9aded9436aa3ce714aeff3f45fcc1431df7d2
  19. Affected versionversion=a2e64fcdc83c645813f7b93e4df291841ba7c625
  20. Affected versionversion=ea018da95368adfb700689bd9842714f7c3db665
  21. Affected versionversion=fb52f40e085ef4074f1335672cd62c1f832af13b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1201613a70dd34bd347ba2970919b3f1d5fbfb4a; version=2b1f3807ed9cafb59c956ce76a05d25e67103f2e; version=3.10.49 <3.11; version=3.12.25 <3.13; version=3.14.10 <3.15; version=3.15.3 <3.16; version=3.16; version=3.2.61 <3.3; version=3.4.99 <3.5; version=3d5c9340d1949733eb37616abd15db36aef9a57c <1401da1486dc1cdbef6025fd74a3977df3a3e5d0; version=3d5c9340d1949733eb37616abd15db36aef9a57c <432efdbe7da5ecfcbc0c2180cfdbab1441752a38; version=3d5c9340d1949733eb37616abd15db36aef9a57c <6a976e9a47e8e5b326de671811561cab12e6fb1f; version=3d5c9340d1949733eb37616abd15db36aef9a57c <85f03ca98e07cd0786738b56ae73740bce0ac27f; version=3d5c9340d1949733eb37616abd15db36aef9a57c <93f44655472d9cd418293d328f9d141ca234ad83; version=3d5c9340d1949733eb37616abd15db36aef9a57c <a92d81c9efec9280681c27a2c0a963fd0f1338e0; version=3d5c9340d1949733eb37616abd15db36aef9a57c <d33d26036a0274b472299d7dcdaa5fb34329f91b; version=3d5c9340d1949733eb37616abd15db36aef9a57c <f13b5afc5c4889569d84c3011ce449f61fccfb28; version=95f9aded9436aa3ce714aeff3f45fcc1431df7d2; version=a2e64fcdc83c645813f7b93e4df291841ba7c625; version=ea018da95368adfb700689bd9842714f7c3db665; version=fb52f40e085ef4074f1335672cd62c1f832af13b

Published CVSS scores

5.5NISTCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-667Improper Locking
CAPEC-25Forced Deadlock
T1499.004Application or System Exploitation

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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