CVE-2024-43098

I3C registration hang via recursive bus locking

Published Jan 11, 2025 · Updated May 11, 2026

Improper locking in the Linux kernel I3C core from 5.0 allows local users to hang the I3C device-registration path. During i3c_master_register(), i3c_device_uevent() calls i3c_device_get_info(), which tries to reacquire the i3cbus lock already held by registration. The hang requires the I3C registration path and interrupts its completion; no confidentiality or integrity effect is reported.

CVSS severity5.5
Medium
EPSS probability0.17%
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 I3C core from 5.0 allows local users to hang the I3C device-registration path. During i3c_master_register(), i3c_device_uevent() calls i3c_device_get_info(), which tries to reacquire the i3cbus lock already held by registration. The hang requires the I3C registration path and interrupts its completion; no confidentiality or integrity effect is reported.

The record

CVE
CVE-2024-43098
Published
Jan 11, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 11, 2025CVE 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=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <1f51ae217d09c361ede900b94735a6d2df6c0344
  2. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <2d98fa2a50b8058de52ada168fa5dbabb574711b
  3. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <5ac1dd51aaa0ce8b5421d1137e857955a4b6f55e
  4. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <6cf7b65f7029914dc0cd7db86fac9ee5159008c6
  5. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <816187b1833908941286e71b0041059a4acd52ed
  6. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <9a2173660ee53d5699744f02e6ab7bf89fcd0b1a
  7. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <ffe19e363c6f8b992ba835a361542568dea17409
  8. Affected versionversion=5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <1f51ae217d09c361ede900b94735a6d2df6c0344; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <2d98fa2a50b8058de52ada168fa5dbabb574711b; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <5ac1dd51aaa0ce8b5421d1137e857955a4b6f55e; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <6cf7b65f7029914dc0cd7db86fac9ee5159008c6; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <816187b1833908941286e71b0041059a4acd52ed; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <9a2173660ee53d5699744f02e6ab7bf89fcd0b1a; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <ffe19e363c6f8b992ba835a361542568dea17409; version=5.0

Published CVSS scores

5.5CISA ADP VulnrichmentCVSS: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

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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
T1499Endpoint Denial of Service

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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