CVE-2026-72324

Service interruption via unreleased interrupt-domain chip data

Published Aug 15, 2026 · Updated Aug 15, 2026

Resource leakage in the Linux kernel mvebu GPIO driver allows local users to degrade system stability by repeatedly unbinding the driver. mvebu_gpio_remove_irq_domain() calls irq_domain_remove() without first calling irq_domain_remove_generic_chips(), leaving generic chip data allocated when IRQ_DOMAIN_FLAG_DESTROY_GC is unset. The path requires low-privileged local access and a system using the Marvell EBU GPIO driver; repeated unbinds can exhaust resources and interrupt service.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leakage in the Linux kernel mvebu GPIO driver allows local users to degrade system stability by repeatedly unbinding the driver. mvebu_gpio_remove_irq_domain() calls irq_domain_remove() without first calling irq_domain_remove_generic_chips(), leaving generic chip data allocated when IRQ_DOMAIN_FLAG_DESTROY_GC is unset. The path requires low-privileged local access and a system using the Marvell EBU GPIO driver; repeated unbinds can exhaust resources and interrupt service.

The record

CVE
CVE-2026-72324
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=3.16.40 <3.17
  2. Affected versionversion=4.8.9 <4.9
  3. Affected versionversion=4.9
  4. Affected versionversion=7a9239fd04802ee6ddf82d211cff3ee7df9c473a
  5. Affected versionversion=812d47889a8e418d7bea9bec383581a34c19183e <3649b04f86b95243fa0c845695051455fa2ba40b
  6. Affected versionversion=812d47889a8e418d7bea9bec383581a34c19183e <3bfcce441c552133adeeb99c294d0ce8a62612ef
  7. Affected versionversion=812d47889a8e418d7bea9bec383581a34c19183e <b11c513ad943f35cf5e8007d3a56279c79b7ed4b
  8. Affected versionversion=812d47889a8e418d7bea9bec383581a34c19183e <d73e4d790db611da7439e78a6ab6cb32e7885ab8
  9. Affected versionversion=f0cde54863da281cec1ed85497b4ec58d29c1460

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.16.40 <3.17; version=4.8.9 <4.9; version=4.9; version=7a9239fd04802ee6ddf82d211cff3ee7df9c473a; version=812d47889a8e418d7bea9bec383581a34c19183e <3649b04f86b95243fa0c845695051455fa2ba40b; version=812d47889a8e418d7bea9bec383581a34c19183e <3bfcce441c552133adeeb99c294d0ce8a62612ef; version=812d47889a8e418d7bea9bec383581a34c19183e <b11c513ad943f35cf5e8007d3a56279c79b7ed4b; version=812d47889a8e418d7bea9bec383581a34c19183e <d73e4d790db611da7439e78a6ab6cb32e7885ab8; version=f0cde54863da281cec1ed85497b4ec58d29c1460

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.3SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
2.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime
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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