CVE-2024-42127

Kernel crash via late shared IRQ teardown

Published Jul 30, 2024 · Updated May 11, 2026

Denial of service in the Linux lima DRM driver allows local users to crash the kernel by removing the driver during shared IRQ teardown. Device-managed shared IRQ handlers remain registered after the removal callbacks disable device clocks, so an interrupt handler can access registers while their clocks are off. Triggering the crash requires lima driver removal on a kernel built with CONFIG_DEBUG_SHIRQ; no data disclosure or modification is reported.

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

What happened

Denial of service in the Linux lima DRM driver allows local users to crash the kernel by removing the driver during shared IRQ teardown. Device-managed shared IRQ handlers remain registered after the removal callbacks disable device clocks, so an interrupt handler can access registers while their clocks are off. Triggering the crash requires lima driver removal on a kernel built with CONFIG_DEBUG_SHIRQ; no data disclosure or modification is reported.

The record

CVE
CVE-2024-42127
Published
Jul 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 30, 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=5.2
  2. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <04d531b9a1875846d4f89953b469ad463aa7a770
  3. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <0a487e977cb8897ae4c51ecd34bbaa2b005266c9
  4. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <0d60c43df59ef01c08dc7b0c45495178f9d05a13
  5. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <17fe8b75aaf0bb1bdc31368963446b421c22d0af
  6. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <25d0d9b83d855cbc5d5aa5ae3cd79d55ea0c84a8
  7. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <a6683c690bbfd1f371510cb051e8fa49507f3f5e
  8. Affected versionversion=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <b5daf9217a50636a969bc1965f827878aeb09ffe

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.2; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <04d531b9a1875846d4f89953b469ad463aa7a770; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <0a487e977cb8897ae4c51ecd34bbaa2b005266c9; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <0d60c43df59ef01c08dc7b0c45495178f9d05a13; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <17fe8b75aaf0bb1bdc31368963446b421c22d0af; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <25d0d9b83d855cbc5d5aa5ae3cd79d55ea0c84a8; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <a6683c690bbfd1f371510cb051e8fa49507f3f5e; version=a1d2a6339961efc078208dc3b2f006e9e9a8e119 <b5daf9217a50636a969bc1965f827878aeb09ffe

Published CVSS scores

5.5Canonical UbuntuCVSS: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
PrivilegesUnavailable
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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