CVE-2026-53226

Kernel crash via stale generic IRQ chips

Published Jun 25, 2026 · Updated Jun 25, 2026

Use-after-free in the Rockchip GPIO driver in the Linux Kernel allows local users to crash the kernel during device teardown. The rockchip_gpio_remove() path removes the IRQ domain without freeing generic IRQ chips, leaving them on gc_list after the GPIO bank is gone. Reachability requires removal of a Rockchip GPIO bank and a later generic IRQ suspend, resume, or shutdown callback to visit the stale entry.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in the Rockchip GPIO driver in the Linux Kernel allows local users to crash the kernel during device teardown. The rockchip_gpio_remove() path removes the IRQ domain without freeing generic IRQ chips, leaving them on gc_list after the GPIO bank is gone. Reachability requires removal of a Rockchip GPIO bank and a later generic IRQ suspend, resume, or shutdown callback to visit the stale entry.

The record

CVE
CVE-2026-53226
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=5.15
  2. Affected versionversion=936ee2675eee1faca0dcdfa79165c7990422e0fc <1c1e0fc88d6ef65bf15d517853251f75ab9d18c3
  3. Affected versionversion=936ee2675eee1faca0dcdfa79165c7990422e0fc <1f34ea5f6114011092d9a5c8b901ad6741144a1d
  4. Affected versionversion=936ee2675eee1faca0dcdfa79165c7990422e0fc <bace7b99bfa555fe833aee8827b8004c43666d02

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.15; version=936ee2675eee1faca0dcdfa79165c7990422e0fc <1c1e0fc88d6ef65bf15d517853251f75ab9d18c3; version=936ee2675eee1faca0dcdfa79165c7990422e0fc <1f34ea5f6114011092d9a5c8b901ad6741144a1d; version=936ee2675eee1faca0dcdfa79165c7990422e0fc <bace7b99bfa555fe833aee8827b8004c43666d02

Published CVSS scores

5.5NVDCVSS: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

T1499.004Endpoint Denial of Service: Application or System Exploitation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo