CVE-2026-68219
Received Received - Intake

Out-of-Bounds Write in Linux Kernel ISI Driver

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: nxp: imx8-isi: Fix potential out-of-bounds issues The maximum downscaling factor supported by ISI can be up to 16. Add minimum value constraint before applying the setting to hardware. Otherwise, the process will not respond even when Ctrl+C is executed.

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-68219
EUVD
EUVD-2026-55320

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
nxp imx8-isi *

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel affects the media subsystem, specifically the NXP i.MX8 ISI (Image Subsystem Interface) driver. It involves potential out-of-bounds issues due to an unsupported downscaling factor. The ISI hardware supports a maximum downscaling factor of 16, but without proper constraints, the system may fail to respond even to interrupt signals like Ctrl+C.

Detection Guidance

This vulnerability is specific to the Linux kernel's media subsystem, particularly the nxp imx8-isi driver. Detection requires checking kernel logs for ISI-related errors or kernel panics. Use commands like dmesg | grep -i isi or journalctl -k | grep -i isi to inspect kernel messages for out-of-bounds issues.

Impact Analysis

This vulnerability could cause system hangs or unresponsiveness when processing media operations with invalid downscaling settings. Users might experience frozen applications or systems that ignore termination commands, potentially leading to data loss or denial of service.

Mitigation Strategies

Update the Linux kernel to the latest patched version that includes the fix for CVE-2026-68219. If using a custom kernel, ensure the nxp imx8-isi driver is updated to enforce minimum downscaling constraints. Reboot the system after applying updates.

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