CVE-2024-56723

Local service interruption via incorrect IRQ-domain assignment

Published Dec 29, 2024 · Updated May 11, 2026

Improper IRQ-domain handling in Linux allows local users to interrupt service on systems using Intel BXTWC PMIC devices. The intel_soc_pmic_bxtwc driver registers multiple MFD children without assigning each child the IRQ domain for its own regmap IRQ chip, so IRQ resource zero is treated as a Linux vIRQ. Reachability requires local low-privilege access and compatible PMIC hardware; the consequence is limited to service interruption, with no reported data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper IRQ-domain handling in Linux allows local users to interrupt service on systems using Intel BXTWC PMIC devices. The intel_soc_pmic_bxtwc driver registers multiple MFD children without assigning each child the IRQ domain for its own regmap IRQ chip, so IRQ resource zero is treated as a Linux vIRQ. Reachability requires local low-privilege access and compatible PMIC hardware; the consequence is limited to service interruption, with no reported data exposure or modification.

The record

CVE
CVE-2024-56723
Published
Dec 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 29, 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=4.13
  2. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <0350d783ab888cb1cb48ced36cc28b372723f1a4
  3. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <61d590d7076b50b6ebdea1f3b83bb041c01fc482
  4. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <6ea17c03edc7ed0aabb1431eb26e2f94849af68a
  5. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <7ba45b8bc62e64da524d45532107ae93eb33c93c
  6. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <897713c9d24f6ec394585abfcf259a6e5cad22c8
  7. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <b3d45c19bcffb9a9a821df759f60be39d88c19f4
  8. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <bb6642d4b3136359b5b620049f76515876e6127e
  9. Affected versionversion=57129044f5044dcd73c22d91491906104bd331fd <d4cc78bd6a25accb7ae2ac9fc445d1e1deda4a62

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.13; version=57129044f5044dcd73c22d91491906104bd331fd <0350d783ab888cb1cb48ced36cc28b372723f1a4; version=57129044f5044dcd73c22d91491906104bd331fd <61d590d7076b50b6ebdea1f3b83bb041c01fc482; version=57129044f5044dcd73c22d91491906104bd331fd <6ea17c03edc7ed0aabb1431eb26e2f94849af68a; version=57129044f5044dcd73c22d91491906104bd331fd <7ba45b8bc62e64da524d45532107ae93eb33c93c; version=57129044f5044dcd73c22d91491906104bd331fd <897713c9d24f6ec394585abfcf259a6e5cad22c8; version=57129044f5044dcd73c22d91491906104bd331fd <b3d45c19bcffb9a9a821df759f60be39d88c19f4; version=57129044f5044dcd73c22d91491906104bd331fd <bb6642d4b3136359b5b620049f76515876e6127e; version=57129044f5044dcd73c22d91491906104bd331fd <d4cc78bd6a25accb7ae2ac9fc445d1e1deda4a62

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NISTCVSS: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 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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