CVE-2023-52660

System hang via powered-down ISP register access

Published May 17, 2024 · Updated May 11, 2026

Denial of service in the rkisp1 driver in Linux 5.6 through 6.8-rc4 allows local users to hang the system via a shared interrupt. An interrupt handler accesses ISP registers after the device has powered down because shared interrupts can invoke it while the ISP is not operational. Reaching the hang requires the rkisp1 driver and Rockchip ISP hardware; CONFIG_DEBUG_SHIRQ plus driver unload reproduces it without an actually shared line.

CVSS severity5.5
Medium
EPSS probability0.22%
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 rkisp1 driver in Linux 5.6 through 6.8-rc4 allows local users to hang the system via a shared interrupt. An interrupt handler accesses ISP registers after the device has powered down because shared interrupts can invoke it while the ISP is not operational. Reaching the hang requires the rkisp1 driver and Rockchip ISP hardware; CONFIG_DEBUG_SHIRQ plus driver unload reproduces it without an actually shared line.

The record

CVE
CVE-2023-52660
Published
May 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 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=25cb42af9ffabffec499e9e69e2fd3797774ce5b <abd34206f396d3ae50cddbd5aa840b8cd7f68c63
  2. Affected versionversion=25cb42af9ffabffec499e9e69e2fd3797774ce5b <b39b4d207d4f236a74e20d291f6356f2231fd9ee
  3. Affected versionversion=25cb42af9ffabffec499e9e69e2fd3797774ce5b <edcf92bc66d8361c51dff953a55210e5cfd95587
  4. Affected versionversion=25cb42af9ffabffec499e9e69e2fd3797774ce5b <ffb635bb398fc07cb38f8a7b4a82cbe5f412f08e
  5. Affected versionversion=5.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=25cb42af9ffabffec499e9e69e2fd3797774ce5b <abd34206f396d3ae50cddbd5aa840b8cd7f68c63; version=25cb42af9ffabffec499e9e69e2fd3797774ce5b <b39b4d207d4f236a74e20d291f6356f2231fd9ee; version=25cb42af9ffabffec499e9e69e2fd3797774ce5b <edcf92bc66d8361c51dff953a55210e5cfd95587; version=25cb42af9ffabffec499e9e69e2fd3797774ce5b <ffb635bb398fc07cb38f8a7b4a82cbe5f412f08e; version=5.6

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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

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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

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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