CVE-2024-50111

Local service interruption via disabled-IRQ sleep

Published Nov 5, 2024 · Updated May 11, 2026

Improper interrupt handling in Linux 5.19 and later on LoongArch allows local users to interrupt service through unaligned access. The do_ale() exception handler leaves IRQs disabled after entry from an IRQ-enabled context, then get_user() can sleep and trigger an invalid-context kernel warning. Exploitation requires local low-privileged code on a LoongArch system, and the documented consequence is limited to availability.

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

Improper interrupt handling in Linux 5.19 and later on LoongArch allows local users to interrupt service through unaligned access. The do_ale() exception handler leaves IRQs disabled after entry from an IRQ-enabled context, then get_user() can sleep and trigger an invalid-context kernel warning. Exploitation requires local low-privileged code on a LoongArch system, and the documented consequence is limited to availability.

The record

CVE
CVE-2024-50111
Published
Nov 5, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 5, 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=5.19
  2. Affected versionversion=fa96b57c149061f71a70bd6582d995f6424fbbf4 <69cc6fad5df4ce652d969be69acc60e269e5eea1
  3. Affected versionversion=fa96b57c149061f71a70bd6582d995f6424fbbf4 <8915ed160dbd32b5ef5864df9a9fc11db83a77bb
  4. Affected versionversion=fa96b57c149061f71a70bd6582d995f6424fbbf4 <afbfb3568d78082078acc8bb2b29bb47af87253c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.19; version=fa96b57c149061f71a70bd6582d995f6424fbbf4 <69cc6fad5df4ce652d969be69acc60e269e5eea1; version=fa96b57c149061f71a70bd6582d995f6424fbbf4 <8915ed160dbd32b5ef5864df9a9fc11db83a77bb; version=fa96b57c149061f71a70bd6582d995f6424fbbf4 <afbfb3568d78082078acc8bb2b29bb47af87253c

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5SUSECVSS: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

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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